[ROM][13.0][OFFICIAL][CEPHEUS] PixelOS [RETROFIT][10/05/2023]

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Mar 14, 2023
Front camera still not working in video mode. Don't show anything!! Camera mode is working good. 🤣


Mar 14, 2023
Anyone know change battery capacity in this rom. I just change new battery 4000ma. Now battery show not exactly. And not fast change


Senior Member
Mar 4, 2016
Xiaomi Mi 9


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New member
May 12, 2011
Anyone know change battery capacity in this rom. I just change new battery 4000ma. Now battery show not exactly. And not fast change
You need to change the values of these two files to 4000000 (Need root):

You can also try with this Magisk module: https://github.com/PycmShoma/IncreasedBatteryCapacity

If it works for you, let us know. Because as I have seen these changes do not work in all ROMS.
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Mar 14, 2023
Can't you set it in AccuBattery? (App)
not it not accept me charging battery . lol
put old battery , everything fine
You need to change the values of these two files to 4000000 (Need root):

You can also try with this Magisk module: https://github.com/PycmShoma/IncreasedBatteryCapacity

If it works for you, let us know. Because as I have seen these changes do not work in all ROMS.
Thanks bro. i will try


Senior Member
Aug 25, 2013
Xiaomi Mi 9
this was a bit hard to install but i figure out ...
Who recive error that sideload cant read just folow this step from other topic ;

Many thanks to @jstegeman for the genius insight into LARGEADDRESSAWARE. I wanted to clarify a couple things for those who are still having issues...
1) Enable debug tracing for adb.exe so you actually know why it's failing. Clarification on @jstegeman post -- you need to set the env. variable ADB_TRACE to all, not ADB_DEBUG. Open a command prompt and type 'set ADB_TRACE=all' and you should be set.
2) Once ADB_TRACE is set try the sideload command again: 'adb sideload <filename>'
3) adb should now spit out an error message. If it's the large address problem you'll see something like 'Unable to allocate 13345........ bytes'.
4) BEFORE YOU RUN THE LARGE ADDRESS AWARE EXECUTABLE LINKED TO BY @jstegeman YOU NEED TO KILL ADB. If you don't kill the service then the utility will fail (without any error message) because you can't modify a running EXE. Type 'adb kill-server' then run the utility.

Once I did 4) then everything worked like it should. Hope it helps

About ROM for first day is excelent.
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  • 7
    Hi everyone, new may update is up!
    You can update via OTA or using sideload method.
    (If you have magisk, remember to flash it again if you update using OTA)

    Here's the list of changes device side (source changelog is on the website):

    • Switch FOD color back to green
    • Set to powersave governor when device is idle
    • Remove audio and Adaptive Battery CPU Throttling hints
    • Make use of task_profiles and cgroups
    • Fixed VoWiFi not working on outgoing calls or airplane mode
    • Upstreamed kernel to 4.14.314
    • Merged CLO tag 'LA.UM.9.1.r1-13500-SMxxx0.QSSI13.0' in kernel
    • Backport f2fs from 6.4-rc1-5.10
    • Silence more kernel logging
    • Misc. fixes and improvements
    Hope you all enjoy this update, performance it's better without affecting battery backup : )
    Have a great day. ❤️

    Liked my work? Buy me a coffee ☕
    As well, you may be interested, I've compiled a kernel with KernelSU support, check here for REVUELTO-KSU zip to download. Kernel is the same, it's just that i renamed to "REVUELTO".
    Steps to flash the kernel are the same, update from adb > adb sideload, or update from OTG (you can't flash kernel in OTA udpater, just in case).
    * Note: KernelSU don't support all modules
    Why not mentioning that we are back to Pixel Launcher?
    It is mentioned in source changelog 😅
    Juste with the correct Magisk module ;)
  • 47

    PixelOS for Xiaomi Mi 9 (cepheus)

    PixelOS is an AOSP based ROM, with Google apps included and all Pixel goodies (launcher, wallpapers, themed icons, google sans fonts, Monet color based system wide theming, boot animation).
    /* Your warranty is now void.
    * I am not responsible for bricked devices, dead SD cards,
    * thermonuclear war, or you getting fired because the alarm app failed. Please
    * do some research if you have any concerns about features included in this ROM
    * before flashing it! YOU are choosing to make these modifications, and if
    * you point the finger at me for messing up your device, I will laugh at you.

    Device Specific Issues:
    - None, report them if you find one.

    PixelOS Website
    PixelOS Recovery

    *YOU MUST CLEAN FLASH if you are coming from any other ROM or MIUI.
    Flashing instructions (PixelOS Recovery)
    # Keep in mind:
    - Since Cepheus is using Retrofit, do NOT use TWRP or OrangeFOX.
    - Use PixelOS Recovery only.
    - Do NOT flash custom kernels, they won't boot.
    - YOU MUST CLEAN FLASH if you are coming from any other ROM or MIUI.

    # Clean Flash
    - Make sure your platform-tools (adb and fastboot) are up to date.
    - Download PixelOS ROM zip and recovery.img.
    - Reboot into Fastboot.
    - Flash recovery using: fastboot flash recovery <recoveryname.img>
    - Reboot to recovery.
    - In recovery, format data with Factory Reset > Format data/factory reset
    - Sideload the zip with Apply Update > Apply from ADB, and do: adb sideload <ROM zip file>
    - Optional: Flash magisk with sideload using: adb sideload <Magisk zip>
    - ^ Magisk will show a message about "Signature verification failed, install anyways?", just click YES.
    - Reboot and voila!

    # Dirty Flash
    - Flash via OTA under Settings > System Update, or:
    - Download ROM zip
    - Enter PixelOS Recovery > Apply Update > Apply from ADB
    - Sideload the ROM using: adb sideload <ROM zip file>
    - Optional: sideload Magisk using: adb sideload <Magisk zip>
    - Reboot and voila!

    Note: Gapps are included, don't flash separately.

    Join PixelOS Telegram Group https://t.me/PixelOSChat
    Join PixelOS Official Cepheus Telegram Group: https://t.me/pixeloscepheus

    Source Code
    PixelOS: http://github.com/PixelOS-AOSP
    Device Tree: https://github.com/PixelOS-Devices/device_xiaomi_cepheus/
    Vendor: https://github.com/PixelOS-Devices/vendor_xiaomi_cepheus/
    Kernel Source: https://github.com/balgxmr/kernel_xiaomi_cepheus
    MIUI Camera: https://gitlab.com/baalgx/vendor_xiaomi_cepheus-miuicamera

    Stable Release Date: 10/05/23
    Latest Release Date: 10/05/23
    New PixelOS January update is here!

    Prepare your backups, clean flash is mandatory!

    I hope you guys likes this update. Battery backup should be better now and overall stability.
    Many thanks to Markus, SA.EXE, Vadim, Kamyk, Error01 for testing!

    - Added MIUI Camera
    - Addressed more SELinux policy denials
    - Drop pixel thermal hal workaround
    - Drop s2idle usage
    - Media: Update from LA.UM.9.1.r1-13000-SMxxx0.QSSI13.0
    - Merge tag LA.UM.9.1.r1-13000-SMxxx0.QSSI13.0
    - Move to lz4 for EROFS
    - overlay: Add dummy udfps sensor (Fixes screen off fod toggle)
    - Removed Dirac
    - Switch back to OpenGL renderer
    - Switched to user type build
    - Update CarrierConfig from LA.QSSI.13.0.r1-07400-qssi.0
    - Update GPS blobs from LA.UM.9.1.r1-11500.02-SMxxx0.QSSI12.0
    - Upstreamed kernel to 4.14.303
    - Misc changes and improvements.

    Source changelog is available at https://blog.pixelos.net/

    Liked my work? Buy me a coffee ☕ https://paypal.me/balgxmr
    Hello everyone, february update is here!
    Full source changelog is available at https://blog.pixelos.net/

    Changelog device side:

    - Add power off alarm support (Needs LineageOS/DeskClock, or an alarm clock which supports power off alarm)
    - Address more sepolicy denials
    - Change default FOD pressed color to cyan
    - Drop cpu affinity configs
    - Enable qcrild and data services instead of starting them
    - Inherit several Android Go configurations
    - Switch to OSS mtdservice and mlipay
    - Update telephony package list to LA.QSSI.12.0.r1-05600-qssi.0
    - Silence CamX and CHIUSECASE log spam
    - Switch to source built camera stack
    - Temporary remove MIUI Camera due to reported issues
    - Added Aperture camera with AUX support
    - Use AOSP USB v2 audio HAL
    - Add some missing IMS blobs
    - Updated F2FS from Linux 6.2
    - Merge CodeLinaro LA.UM.9.1.r1-13100-SMxxx0.QSSI13.0 tag
    - Upstream kernel to 4.14.305 and compile it with playground clang 17

    About MIUI Camera, it will hopefully return in next updates, i have removed it for now due to broken autobrightness after using the camera, and camera going full black randomly (which forcefully needs reboots). Once I fix these issues, I'll include it again. Safetynet is fixed as well. Hope y'all likes the update :).

    PS: Something i forgot to mention, Camera ids has been udpdated:
    0 for main/wide, 1 for front, 2 for telephoto, 3 for ultra wide.
    I mention this just in case GCams or any mod doesn't recognize properly the other cameras.

    Liked my work? Buy me a coffee 😉☕

    Hello everyone. New update is out!

    Check out the website for downloads and changelog!
    Big thanks for all the testers and feedback, here and telegram.

    Wanna buy me a coffee? Paypal donate

    Hi everyone! New update is here. This update brings new changes from source and device! ☺️

    Source Changelog July Update:
    • Merged July Security Patch
    • Fixed issues with a few banking apps (such as HDFC) detecting root access
    • Extended Applock support to various system apps
    • Added optional Daily data usage in expanded quicksettings
    • Updated per-app volume drawable to match other system elements
    • Improvements in statusbar icon paddings
    • Added toggles for vibration icon and old style mobile data indicators in Icon manager
    • Made battery & clock clickable again in quick statusbar header
    • Updated translations (thanks to everyone who contributed).
    • Squashed some bugs (in real life too)

    Device Changes 08-July:
    - overlay: Compact cached app heaps in the background
    - overlay: Allow more cached apps in the background
    - rootdir: Add SchedTune configuration
    - Switch to SkiaGL Threaded
    - Developer options: Display cutout: add NoCutOut overlay (Hide Notch) [This breaks fingerprint at the moment]
    - Bring back HBM / Display Mode
    - LiveDisplay: Add Picture adjustment
    - kernel: Drop KCAL color control
    - kernel: Fix green tint issue on fod unlock [Thanks to Logan, Flackback and Demon000 for commit/fix!]
    - kernel: Enable LZ4 Compressed Ramdisk
    - Other improvements!

    Download Here!
    More information about flash guide, what is PixelOS and more, are on the original post! ☺️