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[ROM][12.0][POLARIS] Pixel Experience [AOSP][2021/11/28]

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probuddha

Member
Dec 16, 2013
38
6
Recently flashed with PE on my Mi A1 and found that despite turning on Wifi Calling, it doesn't work. When I make a call with wifi calling on, the other person can't hear me but I can hear them.

Has anyone else experienced this and is there a solution? Thanks
 
Last edited by a moderator:

t_leite

Member
Sep 29, 2021
7
1
Hi, I'm new here. I just installed this ROM about a week ago and unfortunately I'm having problems with my network connection. It loses signal very often and I'm unable to find a solution by myself. The only network type that does something remotely resembling a normal phone is GSM/WCDMA/LTE, but, as mentioned it loses signal very often and voice calls have very low quality. I'm currently in Belgium, any advice for me?
 

jjpprrrr

Senior Member
Nov 27, 2018
627
612
jjpprrrr.com
Hi, I'm new here. I just installed this ROM about a week ago and unfortunately I'm having problems with my network connection. It loses signal very often and I'm unable to find a solution by myself. The only network type that does something remotely resembling a normal phone is GSM/WCDMA/LTE, but, as mentioned it loses signal very often and voice calls have very low quality. I'm currently in Belgium, any advice for me?
I don't know anyone from Belgium, so I can't really say anything about it. Maybe first verify if the auto selected APN config is correct or not? Is it the same as your carrier's recommended settings?
 

t_leite

Member
Sep 29, 2021
7
1
I don't know anyone from Belgium, so I can't really say anything about it. Maybe first verify if the auto selected APN config is correct or not? Is it the same as your carrier's recommended settings?
I've manually set the APN since I needed it to have LTE internet and it works (as long as I have signal ofc), but, the overall quality of the connection is what's annoying. Is there any chance of flashing the original radio (IDK if this is still possible since the last time I flashed a custom rom was about 7 or 8 years ago). Thanks anyway for your attention
 

jjpprrrr

Senior Member
Nov 27, 2018
627
612
jjpprrrr.com
I've manually set the APN since I needed it to have LTE internet and it works (as long as I have signal ofc), but, the overall quality of the connection is what's annoying. Is there any chance of flashing the original radio (IDK if this is still possible since the last time I flashed a custom rom was about 7 or 8 years ago). Thanks anyway for your attention
The ROM already includes the needed firmware, so I doubt flashing anything else would help.
 
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joseanpv

Member
Dec 20, 2014
14
4
Hi there.
First of all, thanks for the work.
I have put a dual sim on the phone, and even though i have the option to ask which sim i should use, when i call someone it doesn't work.
Do you know if it is something that has been reported before?
Let's see if you can help me.
Thank you
 

dobi235

Senior Member
Mar 11, 2012
226
53
Sala
Hi there.
First of all, thanks for the work.
I have put a dual sim on the phone, and even though i have the option to ask which sim i should use, when i call someone it doesn't work.
Do you know if it is something that has been reported before?
Let's see if you can help me.
Thank you
I was using dual sim without any problem :)
 

Yanii3004

Member
Oct 21, 2018
18
1
Gent
Hi, I'm new here. I just installed this ROM about a week ago and unfortunately I'm having problems with my network connection. It loses signal very often and I'm unable to find a solution by myself. The only network type that does something remotely resembling a normal phone is GSM/WCDMA/LTE, but, as mentioned it loses signal very often and voice calls have very low quality. I'm currently in Belgium, any advice for me?
Hello fellow Belgian! I had the same issue for more than a year. The solution is to go to network settings > providor name (Mobile Vikings with me) > uncheck voLTE. My network connection worked like a charm since I unchecked voLTE.
 

t_leite

Member
Sep 29, 2021
7
1
Hello fellow Belgian! I had the same issue for more than a year. The solution is to go to network settings > providor name (Mobile Vikings with me) > uncheck voLTE. My network connection worked like a charm since I unchecked voLTE.
I mate, I'm in Belgium at the moment but I'm Portuguese, I appreciate your help but, I already had VolTe enabled, if you're in Belgium, what prefered network type have you chosen? I'm currently on GSM/ WCDMA/ LTE.

EDIT my carrier is VOO
 

Yanii3004

Member
Oct 21, 2018
18
1
Gent
I mate, I'm in Belgium at the moment but I'm Portuguese, I appreciate your help but, I already had VolTe enabled, if you're in Belgium, what prefered network type have you chosen? I'm currently on GSM/ WCDMA/ LTE.

EDIT my carrier is VOO
You have to disable voLTE. The network dropouts happened when it was enabled. My prefered network type is on default.
 

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  • 5
    2021/11/08
    Update for PE 12 ALPHA Unofficial: https://jjpprrrr.com/pe/20211108-0647/
    3
    2021/11/28
    Initial PE 12 BETA official release.
    Changelog: https://jjpprrrr.com/pe/20211128-0611/
    1
    i need to update from "20211103-0404" to "20211108-0647"
    You don't need to format anything then.
    1
    Hello everyone. I'm new with Xiaomi phones and I have a question reverting back to stock rom. If I flash it, the stock recovery already included? I can't find any stock recovery in the internet. I assumed when reverting to stock rom, the recovery also reverts? Thanks for anyone enlighten me
    You do not need the stock recovery to flash back to MIUI. You can always use Mi-Flash to flash in fastboot, or use any recovery like TWRP/OrangeFox to flash a recovery version of MIUI. After flashing MIUI, you will get MIUI recovery automatically upon your next boot (unless you purposefully disable that behavior through some recovery's add-on feature, or by flashing Magisk).
    1
    Ohh. Thanks for the heads-up. So the best way is to Flash the Global Rom first, then that EU Rom, right? I'm fixing my sim network issues and I've read that EU Rom has best network signal
    No. If you're going to use xiaomi.eu, flash it directly is fine. You don't need to flash the official Global ROM first. It's just xiaomi.eu does not include the stock recovery because people using xiaomi.eu usually are on TWRP/OrangeFox already.
  • 39

    GtwTyCR.png


    PixelExperience for Xiaomi Mi Mix 2s [polaris]

    What is this?
    Pixel Experience is an AOSP based ROM, with Google apps included and all Pixel goodies (launcher, wallpapers, icons, fonts, bootanimation)

    Our mission is to offer the maximum possible stability and security, along with essential and useful features for the proper functioning of the device

    Based on Android 12.0


    Whats working?
    Wifi
    RIL
    Mobile data
    GPS
    Camera
    Flashlight
    Bluetooth
    Fingerprint reader
    NFC
    Lights
    Sound / vibration


    Known issues
    Refer to the changelog for known issues.

    DO NOT FLASH GAPPS, ALREADY INCLUDED
    Download from Pixel Experience website

    Translation
    Help with project translation

    Stay tuned
    Our Telegram channel
    Our blog
    Donate me
    My personal website for build updates and flash guide




    Android OS version: 12.0.0_r12
    Security patch level: November, 2021
    Build author/Device Maintainer: jjpprrrr
    Device and Kernel Source code: https://github.com/PixelExperience-Devices
    Source code: https://github.com/PixelExperience
    ROM Developer: jhenrique09
    14
    Reserved

    Note: Google changed something on the server side yesterday (around Sep 2) that breaks SafetyNet for a lot of people. Gpay would be affected as well. Some people reported that getting rid of Magisk completely MAY or MAY NOT help.

    2021/11/28
    Initial PE 12 BETA official release.
    Changelog: https://jjpprrrr.com/pe/20211128-0611/

    2021/10/20
    Unofficial ALPHA PE 12 builds are available on my website: https://jjpprrrr.com/

    2021/10/11
    PE changelog: https://jjpprrrr.com/pe/20211011-2303/
    PE Plus changelog: https://jjpprrrr.com/pep/20211012-0004/

    2021/09/11
    PE changelog: https://jjpprrrr.com/pe/20210911-0532/
    PE Plus changelog: https://jjpprrrr.com/pep/20210911-0606/

    2021/08/18
    PE changelog: https://jjpprrrr.com/pe/20210818-0017/
    PE Plus changelog: https://jjpprrrr.com/pep/20210818-0016/

    2021/07/20
    PE changelog: https://jjpprrrr.com/pe/20210720-1512/
    PE Plus changelog: https://jjpprrrr.com/pep/20210720-1512/

    2021/07/17
    PE changelog: https://jjpprrrr.com/pe/20210717-2122/
    PE Plus changelog: https://jjpprrrr.com/pep/20210717-2122/

    2021/06/25
    PE changelog: https://jjpprrrr.com/pe/20210625-2017/
    PE Plus changelog: https://jjpprrrr.com/pep/20210625-2017/

    2021/06/19
    PE changelog: https://jjpprrrr.com/pe/20210619-0238/
    PE Plus changelog: https://jjpprrrr.com/pep/20210619-0241/

    2021/05/26
    PE changelog: https://jjpprrrr.com/pe/20210526-0015/
    PE Plus changelog: https://jjpprrrr.com/pep/20210526-0010/

    2021/05/14
    PE changelog: https://jjpprrrr.com/pe/20210514-0431/
    PE Plus changelog: https://jjpprrrr.com/pep/20210514-0428/
    Note: The official PE website is migrating to a new storage provider, and the download may be slow in some regions. Please be patient and try again later if you encounter any download issues.

    2021/04/17
    PE changelog: https://jjpprrrr.com/pe/20210417-0245/
    PE Plus changelog: https://jjpprrrr.com/pep/20210417-0245/

    2021/03/27
    PE changelog: https://jjpprrrr.com/pe/20210327-1844/
    PE Plus changelog: https://jjpprrrr.com/pep/20210327-1844/

    2021/03/10
    PE changelog: https://jjpprrrr.com/pe/20210310-2136/
    PE Plus changelog: https://jjpprrrr.com/pep/20210310-2347/

    2021/02/18
    Changelog: https://jjpprrrr.com/pe/20210218-1327/

    2021/02/07
    Changelog: https://jjpprrrr.com/pe/20210207-0205/

    2021/01/19
    Changelog: my website

    2021/01/07
    Changelog: my website

    2020/12/23
    Changelog: My Website

    2020/11/29
    Changelog: my website

    **Device Specific Changes:**
    - Etude kernel:
    * DO NOT use a third party kernel without proper support for Pixel thermal hal
    * Linux 4.9.246
    * merged CAF R tag LA.UM.9.8.r1-03000-SDM710.0
    * modified DT bindings for Pixel thermal hal
    * enabled zram writeback
    * fixed zram idle and writeback string compare
    * added a killable freezer to kill frozen tasks similar to cgroups v2
    * increased top-app boost
    - Switched to Pixel thermal 2.0
    * also updated thermal engine from Pixel 3 XL android 11 build
    - Updated HDR, SDM, Adreno, Vulkan, Snapdragon CVE, WFD vendor, media, configstore, dpm vendor, DRM, msm_irqbalance, peripheral manager, power-off alarm, time service, TEE, TUI, ESE power manager, CNE, IMS, QMI, and RIL from LA.UM.9.8.r1-02700-SDM710.0
    - Updated WFD system, dpm system, and Widevine blobs from OnePlus8Pro android 11 image
    - Updated the following hal versions
    * Secure Element --> 1.2
    * wfdhdcp --> 1.3
    * health --> 2.1
    * ESE power manager --> 1.1
    * QTI Health implementation --> 2.1
    * IRadio --> 1.5
    * uceservice --> 2.2
    * ims factory --> 1.0
    * qti radio --> 2.4
    * ims rtp service --> 3.0
    * removed qdutils_disp
    * added IVr
    - Switched to CAF R display and media hal
    * screen brightness is now controlled by hwc instead of light HAL, which offers a smooth and accurate brightness adjustment without weird hacks I did on android 10
    * display config 2.0
    * set higher priority to c2 than OMX
    * removed deprecated divx/xvid software codecs
    * cleaned up and merged redundant media codec configs
    - Switched to stable aidl Pixel power hal
    * removed UfsHibern8Enable and clkgate_enable hints in launch and interaction because it may freak out ufshc
    - Switched to AOSP NFC 1.2
    - Switched to AOSP BT stack for now
    - Enabled IORap
    * IORap is a new feature in android 11 that greatly improves app startup time by predicting and prefetching potentially blocking I/O
    - Enabled zram writeback in fstab and job scheduler
    - Added AOSP RCS packages and removed deprecated RCS
    - Bumped audio hal to 6.0
    - Enabled the option to turn on blur in developer settings (defaults to disabled)
    * Note: blur is very expensive on rendering and may incur jank frames
    - Added WifiOverlay
    - Added TetheringOverlay
    - Enabled dex2oat64
    - SELinux enforcing and SafetyNet passes out of the box
    * if you use Magisk, you may need to turn on MagiskHide

    **Feature update highlights:**
    - Initial android 11 release with many Pixel features from Pixel 5.

    **Known issues:**
    - "OK Google" hot word does not work yet


    ====================================
    Old changelogs on android 10 builds:

    2020/11/22
    **Device Specific Changes:**
    - Etude kernel:
    * Linux 4.9.243
    * wireguard 1.0.20201112
    * merged upstream fix on ipv6, vsoc, tee, and thermal from android common kernel
    - Fixed audio stuttering in video playback, when you are also in a voice call using BlueTooth headset
    - Removed unused vndk-sp
    - Added AOSP RCS package and removed deprecated packages
    - Added vendor manifest entry for CACert HAL
    - Added default BTSAR HAL entry
    - Parts: updated API of getting focused stack info
    - Removed some ims entries from init script because they are included in vendor

    **Feature update highlights:**
    - November security patch
    - Translation update
    - Some under the hood fixes and improvements to make your experience even better

    2020/10/15
    **Device Specific Changes:**
    - Etude kernel:
    * Linux 4.9.239
    * fixed a camera memory leak
    * disabled unused wsa881x codecs
    * changed China regulatory domain

    **Feature update highlights:**
    - October security patch (bumped the version string)
    - Translation update

    Note: Incremental update for 20201015 build has been removed from server, due to unknown issue causing error 7 in recovery. The system updater will grab the full package instead. If you had issue flashing incremental update, download the full package and flash it in recovery.

    2020/09/16
    **Device Specific Changes:**
    - Etude kernel:
    * wireguard 1.0.20200908
    - Fixed an issue where the screen has extremely low brightness when woken up by notifications

    **Feature update highlights:**
    - Fixed missing security patch in Settings - Security
    - Fixed potentially duplicated Styles package
    - More translation updates

    2020/09/15
    **Device Specific Changes:**
    - Etude kernel:
    * Linux 4.9.236
    * fpc and goodix fingerprint: use qcom drm notifier instead of the generic one
    * fixed xbl_region reserved memory
    - Reworked screen panel backlight
    * in previous builds
    - adjusting brightness slider in the lower range resulted in uneven brightness transition
    - previous builds did not allow screen to dim to the lowest possible value
    - auto-brightness had slow reaction to ambient light changes
    * patched frameworks/base to use linear brightness slider instead of the log scale one
    * ported gamma-linear conversion to light HAL
    * re-calculated auto brightness curve to fit new light HAL changes
    * reduced light sensor debounce time to stay in-line with MIUI
    * the result:
    - smooth backlight brightness transition when moving brightness slider
    - screen can dim to the lowest possible value the panel allows
    - auto-brightness reacts faster to ambient light changes
    - auto-brightness is no longer jumpy
    - screen dimming caused by no user action has proper transitions

    **Feature update highlights:**
    - September security patch
    - PE Plus: Added pocket lock
    - Improved face unlock
    - Updated translations
    - Under-the-hood fixes and improvements

    2020/08/31
    **Device Specific Changes:**
    - Etude kernel:
    * Linux 4.9.234
    * built with latest Clang 12
    * improved suspend/resume latency
    * some misc fixes on arm64 and mm
    - updated firmware and vendor from MIUI 12 Global Stable V12.0.1.0
    - use qti-telephony-common from polaris dump for injection
    - fixed an issue where mobile data on one SIM may be broken after the other SIM receives a phone call or SMS
    - fixed a few sepolicy issues for sched_boost and sysfs_batteryinfo
    - cleaned up Google specific hints from powerhint

    **Feature update highlights:**
    - Misc fixes

    2020/08/18
    - Etude kernel:
    * Linux 4.9.232
    * built with latest Clang 12
    * wireguard 1.0.20200729
    * disabled LLVM Polly
    * merged some loop device backports from upstream
    * some scheduler changes on idle load
    * upstream on mm, qspinlock, and arm/arm64 specific libs
    - created dummy perfd client so that proprietary perfd blobs can be removed while keeping goodix fingerprint sensor functioning
    - disabled kpi_optimize in audio extension because it tries to call perfd and spams logs when failed
    - re-introduced an updated qti-telephony-common injection to polaris
    * this fixed mms issue on some Korean carriers
    - dropped wifi-ext
    - Updated APNs for Chinese carriers and fixed "HD" capable notification spam
    - Bumped Vulkan feature level to 1
    - Enabled 802.11r Fast BSS Transition and increased max BSS count
    - Enabled unspecialized app process pool

    **Feature update highlights:**
    - August security patch (android-10.0.0_r41)
    - Reworked incremental update so that now it should work no matter which version of recovery you use and whether it supports system-as-root or not.
    - PE Plus: Introduced expanded volume panel

    2020/07/19
    - Etude kernel:
    * cleaned up some previous scheduler changes
    * built with Clang 11’s ThinLTO and more LLVM Polly optimization options. ThinLTO greatly improves build times over full LTO while retaining most of the performance benefits.
    * some upstream for rbtree and arm64 memory assembly
    * reverted back to 100HZ tick rate for better battery life
    * wireguard 1.0.20200712
    * exposed calculated FPS through sysfs. Now you can monitor your frame rates through supported apps (tested on Franco Kernel Manager)
    - Switched to QTI BlueTooth stack

    2020/07/11
    - Etude kernel: Op.10 No.2, "Allegro"
    * Linux 4.9.230 and CAF tag "LA.UM.8.3.r1-08100-sdm845.0"
    * built with Clang LTO(Link Time Optimization) and Polly(Polyhedral Optimization)
    * more scheduler and schedtune upstream
    * enabled CONFIG_HZ_300 and disabled core rotation for better load tracking and EAS task placement
    * fixed an issue on ebbg touchscreen
    - Disabled backpressure propagation due to slight increase in rate of jank frames
    - Dropped qti telephony injection
    * let me know if on some carriers mobile data is still broken after a phone call
    - If you use OrangeFox recovery and have error installing incremental package, please update your OrangeFox to R10.1_3 Stable
    * R10.1_3 Stable offers better compatibility with non system-as-root scripts
    * link: https://files.orangefox.tech/OrangeFox-Stable/polaris/OrangeFox-R10.1_3-Stable-polaris.zip
    * if your partition is not encrypted, make sure to tick "Disable forced encryption" again after updating OrangeFox, because the option will be reset after an OrangeFox update.

    PE: July's security patch
    PE Plus:
    - Brought back color calibration in Livedisplay
    - Per-app network isolation

    2020/06/27
    - Etude kernel:
    * some scheduler change from Pixel 3/XL kernel to improve UI responsiveness and jitter
    * Shadow Call Stack support
    * Wireguard 1.0.20200623
    * built with AOSP Clang 11.0.3 (r383902c)
    - Fully enabled backpressure propagation in SurfaceFlinger
    - Enabled Seamless Transfer
    * now you can switch between different audio output devices by tapping the music note icon on the notification of music apps
    * if you are not sure where it is, check screenshots: https://jjpprrrr.com/pep/20200627-0839/
    - Tweaked powerhint to improve IO latency on UFS
    - If you use OrangeFox recovery and have error installing incremental package, please update your OrangeFox to R10.1_3 Stable
    * R10.1_3 Stable offers better compatibility with non system-as-root scripts
    * link: https://files.orangefox.tech/OrangeFox-Stable/polaris/OrangeFox-R10.1_3-Stable-polaris.zip
    * if your partition is not encrypted, make sure to tick "Disable forced encryption" again after updating OrangeFox, because the option will get reset after an OrangeFox update.

    For PE Plus:
    Known issue: color calibration in Livedisplay is temporarily unavailable due to some changes on ROM source

    2020/06/21
    PE:
    - jjpprrrr's Etude kernel: Op.10 No.1
    * the built-in Etude kernel aims to offer smoother experience and better battery life for users who do not feel like flashing a custom kernel
    * special thanks to palaych for commits of new Xiaomi changes
    * Linux 4.9.228 & LA.UM.8.3.r1-07900-sdm845.0, compiled with AOSP Clang 11.0.1 (r383902)
    * upstreamed lz4 to v1.8.3 and enabled lz4 crypto for zram
    * simple_lmk, sound control, f2fs rapid GC (by arter97), Wireguard 1.0.20200611...
    - Updated Qualcomm Adreno and Vulkan drivers from Pixel 3 XL android 11 beta
    * OpenGL ES 3.2 [email protected] (was @415) and Vulkan 1.1.128
    - Fixed an SELinux denial of vendor_init writing to blkio on boot
    - Increased amount of visible notification icons
    - Increased minimum frequency for expensive rendering
    - Per-app optimization profile under Settings/Battery
    - If you use OrangeFox recovery and have error installing incremental package, please update your OrangeFox to R10.1_3 Stable
    * R10.1_3 Stable offers better compatibility with non system-as-root scripts
    * link: https://files.orangefox.tech/OrangeFox-Stable/polaris/OrangeFox-R10.1_3-Stable-polaris.zip
    * If your partition are not encrypted, make sure to tick "Disable forced encryption" again after updating OrangeFox, because the option will get reset after an OrangeFox update.

    PE Plus:
    - jjpprrrr's Etude kernel: Op.10 No.1
    * the built-in Etude kernel aims to offer smoother experience and better battery life for users who do not feel like flashing a custom kernel
    * special thanks to palaych for commits of new Xiaomi changes
    * Linux 4.9.228 & LA.UM.8.3.r1-07900-sdm845.0, compiled with AOSP Clang 11.0.1 (r383902)
    * upstreamed lz4 to v1.8.3 and enabled lz4 crypto for zram
    * simple_lmk, sound control, f2fs rapid GC (by arter97), Wireguard 1.0.20200611...
    - Updated Qualcomm Adreno and Vulkan drivers from Pixel 3 XL android 11 beta
    * OpenGL ES 3.2 [email protected] (was @415) and Vulkan 1.1.128
    - Fixed an SELinux denial of vendor_init writing to blkio
    - Increased amount of visible notification icons
    - Enabled and improved color profiles in Livedisplay
    * you can now choose between Standard, Reading, and sRGB profile
    - Increased minimum frequency for expensive rendering
    - Per-app optimization profile under Settings/Battery
    - If you use OrangeFox recovery and have error installing incremental package, please update your OrangeFox to R10.1_3 Stable
    * R10.1_3 Stable offers better compatibility with non system-as-root scripts
    * link: https://files.orangefox.tech/OrangeFox-Stable/polaris/OrangeFox-R10.1_3-Stable-polaris.zip
    * If your partition are not encrypted, make sure to tick "Disable forced encryption" again after updating OrangeFox, because the option will get reset after an OrangeFox update.
    - Known issue: color calibration in Livedisplay is temporarily unavailable due to a ROM source side change.

    2020/06/06
    **Device Specific Changes:**
    - Kernel: merged Linux 4.9.226 and LA.UM.8.3.r1-07900-sdm845.0
    - Switched to OSS fingerprint HIDL
    - Updated firmware and blobs from MIUI Global Stable V11.0.5.0 for polaris
    - Fixed APN related issues in May builds and removed CarrierSettings from vendor
    - If you use the latest OrangeFox recovery and see errors flashing incremental package, please
    * run "rm /system" in OrangeFox's terminal (or connect to a computer and run it in adb shell)
    * then install the incremental package
    * you will NOT lose any data. This is simply deleting a symlink for SAR support.

    **Feature update highlights:**
    - June security patch
    - Improved network traffic indicator
    - Fixed vibration when battery saver is enabled
    - Implemented quick QS brightness slider
    - Updated gapps and Pixel Launcher

    2020/05/28
    **Device Specific Changes:**
    - Upstreamed kernel to Linux 4.9.225
    - Shipped CarrierSettings in vendor
    * This should help users who experienced mobile data issue on the first two builds of May (e.g. Vodafone PT)
    - Tweaked power hint a bit to improve battery life
    - If you use the latest OrangeFox recovery and see errors flashing incremental package, please
    * run "rm /system" in OrangeFox's terminal (or connect to a computer and run it in adb shell)
    * then install the incremental package
    * you will NOT lose any data. This is simply deleting a symlink for SAR support.

    **PE side changes**
    - Minor improvements
    - Known issue: network traffic indicator will show up briefly in some scenarios despite disabled in settings.

    2020/05/24
    **Device Specific Changes:**
    - Upstreamed kernel to Linux 4.9.224
    - Brought back CarrierConfig
    - Fixed aux camera (telephoto)
    * now gcam with properly implemented aux support can use telephoto camera (tested on PitbulL gcam)
    - Merged display HAL from CAF LA.UM.8.3.r1-07200-sdm845.0
    * bumped vendor.display.config to 1.9
    * increased max_frame_buffer_acquired_buffers to 3
    * for the buttery smooth experience
    - If you use the latest OrangeFox recovery and see errors flashing incremental package, please
    * run "rm /system" in OrangeFox's terminal (or connect to a computer and run it in adb shell)
    * then install the incremental package
    * you will NOT lose any data. This is simply deleting a symlink for SAR support.
    - Known issue: some carriers may not have APN auto selected

    2020/05/13
    **Device Specific Changes:**
    - Upstreamed kernel to Linux 4.9.223
    - Fixed frequent charging disconnections and screen wakeups when battery is warm (46C)
    - Removed CarrierConfig overlay that is no longer needed
    - Raised background blkio weight
    - Enabled Rich-Communication Services
    - Removed CAF power HAL and imported power-libperfmgr from hardware/google/pixel
    - Imported powerhint.json and powerstats from crosshatch
    - Updated power profile from crosshatch
    - zram: lz4 for compression, size increase as recommended by CAF, and other optimizations
    - Enabled Pixel atrace HAL
    - Switched to 24 bit for primary audio output
    - Removed IO prefetcher, some perf blobs and configs
    - If you use the latest OrangeFox recovery and see errors flashing incremental package, please
    * run "rm /system" in OrangeFox's terminal (or connect to a computer and run it in adb shell)
    * then install the incremental package
    * you will NOT lose any data. This is simply deleting a symlink for SAR support.
    - If your partition is not encrypted, your phone may not boot properly after flashing the update. This is because the zram optimizations changes fstab, so the previous fstab patched by the "disable forced encryption patch" you had on your phone is overwritten. Therefore, you need to flash the patch to disable forced encryption again. If you use OrangeFox, you can also flash the full package, because OrangeFox will automatically patch your phone after flashing full package.

    Pixel Experience 10
    - May security patch
    - Fixed frame drops and random closes on screen recorder
    - Fixed Android Auto flickering
    - Fixed random closes on Settings app

    Pixel Experience 10 Plus
    - May security patch
    - Fixed frame drops and random closes on screen recorder
    - Fixed Android Auto flickering
    - Fixed random closes on Settings app
    - Improved long screenshot
    - Known issue: network traffic indicator may overlap or disappear if too many icons exist in statubar

    2020/04/17
    Device Specific Changes:
    - Upstreamed kernel to Linux 4.9.218
    - If you use the latest OrangeFox recovery and see errors flashing incremental package, please
    * run "rm /system" in OrangeFox's terminal (or connect to a computer and run it in adb shell)
    * then install the incremental package
    * you will NOT lose any data. This is simply deleting a symlink for SAR support.
    - Known issue: Android Auto will cause screen flickering. I am still waiting for PE to merge caf surfaceflinger related commits.

    Pixel Experience 10
    - Fixed abnormal behaviors of elements on lockscreen when enabling "Skip lock screen" in face unlock

    Pixel Experience 10 Plus
    - Fixed abnormal behaviors of elements on lockscreen when enabling "Skip lock screen" in face unlock
    - Long screenshots are now saved to the same folder as normal screenshots

    2020/04/07
    Device Specific Changes:
    - Switched to PE kernel (Linux 4.9.217)
    - Merged firmware and blobs from latest MIUI Global Stable V11.0.4.0
    * Volume adjustment in video calls has been fixed.
    * Firmware is included. No need to flash it manually when installing the ROM.
    - Fixed abnormal screen color and brightness behaviors after HDR video playback
    - If you use the latest OrangeFox recovery and see errors flashing incremental package, please
    * run "rm /system" in OrangeFox's terminal (or connect to a computer and run it in adb shell)
    * then install the incremental package
    * you will NOT lose any data. This is simply deleting a symlink for SAR support.

    Pixel Experience 10
    - April security patch (android-10.0.0_r33)
    - Face unlock
    - Screen recorder with internal audio recording
    - Android Auto is fixed

    Pixel Experience 10 Plus
    - April security patch (android-10.0.0_r33)
    - Face unlock
    - Screen recorder with internal audio recording
    - Long screenshot
    - Android Auto is fixed

    2020/03/13
    Pixel Experience 10
    - Upstreamed kernel to 4.9.214
    - Boosted microphone volume in different use cases
    - March Security Patch (android-10.0.0_r31)
    - Some features from Pixel features drop added, as they were included in the security patch
    - The navbar home button circle (A.K.A OPA Layout) is finally there
    - Added the ability of disabling pocketmode on settings (It’s enabled by default)

    Pixel Experience 10 Plus
    - Initial Release
    - Clean flash is highly recommended.

    2020/02/14 - 0240
    - Merged February security patch
    - Merged blobs from MIUI 20.1.16
    - Firmware 20.1.16 is recommended, although the old firmware 9.11.7 may work for most cases
    - Kernel has merged latest source from Xiaomi
    - If you would like to change kernel, please only use kernels that have new camera drivers
    - Fixed A2DP on new BT stack 2
    - Enabled ViLTE for all Indian carriers
    - Force enabled VoWIFI for any carrier
    - Due to a key signing change on PE server, you may have to download the full package to install in recovery manually.

    2020/01/31 - 1907
    * Fixed double tap to wake on Mix 2s with ebbg screens
    * Reduced LED blinking frequency under low battery, without interfering with notification LED
    Note: PE has been improving their OTA updater recently and some work is still in progress. Clicking "install" in the updater may cause install error for now. You might need to manually flash the incremental package in recovery.
    Update: Updater is only supposed to work with encrypted device. If your phone is not encrypted (OrangeFox disables forced encryption by default), you need permissive SELinux to be able to use the updater.

    Here is a quick way to change SELinux status if you have root:
    Code:
    abd shell
    su
    setenforce 0
    getenforce
    You should then see "Permissive" being printed in the shell.

    2020/01/25 - 1422
    Fixed audio distortion and out-of-sync when recording videos in Snapchat

    2020/01/25 - 0052
    Fixed Bluetooth call audio on Bluetooth headsets.

    2020/01/22
    Initial official polaris release by jjpprrrr.
    Everything is working except for BT calls on some BT headsets.
    11
    Reserved
    PE recovery is REQUIRED for android 12 builds, due to changes in keymaster interface and mounting cust partition to /metadata. You will not be able to boot into TWRP/OrangeFox once PE 12 is installed.

    PE recovery flash guide
    - Download PE recovery from the official PE website
    - Boot your phone into fastboot mode. You can either
    * hold power + volume down button
    * or `adb reboot bootloader`
    * or use the `Reboot to bootloader` option in TWRP/OrangeFox
    - Connect your phone to a computer
    - Run `fastboot flash recovery pe_recovery_file_name.img` in your cmd/powershell/terminal
    - Hold power + volume up to boot into recovery

    PE 12 flash guide
    - Boot into PE recovery
    - Select `Factory reset" --> "Format data/factory reset`. You phone should say that /data, /cache, and /metadata have been formatted.
    - Go back to main menu and select "Apply update" --> "Apply from ADB"
    - Connect your phone to a computer
    - Run `adb sideload pe_rom_file_name.zip` in your cmd/powershell/terminal and wait until it finishes
    - Reboot to system

    ==============================
    Old guide for android 11 builds:

    Note: The latest TWRP and OrangeFox are able to DECRYPT the /data partition on android11. However, during our testing process, formatting data to bootstrap the ENCRYPTION is still a hit or miss. Some users will get working encryption upon the initial format and boot, but others will have a broken encryption and may need another data format. /data will appear to be encrypted, the recovery will prompt you to enter password, but if you skip/cancel the password prompt, you may see that files are not actually encrypted. This does not happen to everyone using TWRP/OrangeFox, and the cause is still being investigated.
    Therefore, format data with PE recovery is still required for clean flash.
    If you are already on the previous PE 11 build, OTA or dirty flash is fine.


    PE recovery flash guide[Required]:
    - Download PE recovery from the the polaris device page of official PE website
    - Boot your phone into fastboot mode. You can either
    * Hold power + volume down button
    * or `adb reboot bootloader`
    * or use the `Reboot to bootloader` option in TWRP/OrangeFox
    - Connect your phone to a computer
    - Run `fastboot flash recovery pe_recovery_file_name.img` in your cmd/powershell/terminal
    - Hold power + volume up to boot into recovery

    If you have a custom recovery (TWRP/OrangeFox) installed already, you can use that to flash the .img file of PE recovery into the recovery partition.

    PE 11 ROM flash guide[Required]:
    - Boot into PE recovery
    - Select `Factory reset" --> "Format data/factory reset`
    - Go back to main menu and select "Apply update" --> "Apply from ADB"
    - Connect your phone to a computer
    - Run `adb sideload pe_rom_file_name.zip` in your cmd/powershell/terminal and wait until it finishes
    - Reboot to system

    ==============================
    Old guide for android 10 builds:

    Flash guide:
    1. Use latest OrangeFox recovery R11.0 (or newer) or TWRP 3.3.1-1 (or newer)
    2. If you have been using MIUI or any of its variants, you have to format data.
    - you may have to reboot to recovery again after formatting data
    3. Wipe system & data & cache & dalvik cache
    4. Install ROM
    5. Reboot to system

    Note: Official maintainer of PE for polaris has been changed. Clean flash is highly recommended for those coming from the deprecated official build from Oct 2019. I will not offer any help if you've dirty flashed.


    Download: https://download.pixelexperience.org/polaris
    11
    Update

    2020/03/13
    Pixel Experience 10
    - Upstreamed kernel to 4.9.214
    - Boosted microphone volume in different use cases
    - March Security Patch (android-10.0.0_r31)
    - Some features from Pixel features drop added, as they were included in the security patch
    - The navbar home button circle (A.K.A OPA Layout) is finally there
    - Added the ability of disabling pocketmode on settings (It’s enabled by default)

    Pixel Experience 10 Plus
    - Initial Release
    - Clean flash is highly recommended.

    Download: https://download.pixelexperience.org/polaris
    10
    Update

    2020/06/06
    **Device Specific Changes:**
    - Kernel: merged Linux 4.9.226 and LA.UM.8.3.r1-07900-sdm845.0
    - Switched to OSS fingerprint HIDL
    - Updated firmware and blobs from MIUI Global Stable V11.0.5.0 for polaris
    - Fixed APN related issues in May builds and removed CarrierSettings from vendor
    - If you use the latest OrangeFox recovery and see errors flashing incremental package, please
    * run "rm /system" in OrangeFox's terminal (or connect to a computer and run it in adb shell)
    * then install the incremental package
    * you will NOT lose any data. This is simply deleting a symlink for SAR support.

    **Feature update highlights:**
    - June security patch
    - Improved network traffic indicator
    - Fixed vibration when battery saver is enabled
    - Implemented quick QS brightness slider
    - Updated gapps and Pixel Launcher

    Download: https://download.pixelexperience.org/polaris