[ROM][13.0][OFFICIAL][CEPHEUS] PixelOS [RETROFIT][09/07/2023]

Search This thread


Apr 9, 2015
Thanks for your inputs :)!
Just three questions if you could help me please.

1) When you mentioned LMC R15 Gcam, you mean, "GCam LMC 8.4 R15"? Just because I'm using the SGCAM, but I believe is not the same.

2) If I installed the Magisk, the work profile will still be workable?

3) Out of curiosity, what modules have you installed?

Thank you in advance for your time :)
Hello :)

1 - yes LMC 8.4 R15 (i tested all versions and this one is for me the best one)

2 - i do not know...?

3 - a screenshot is better ;)


  • Screenshot_20230531-110846_Magisk.png
    350.2 KB · Views: 124


Apr 9, 2015
I own also a mi 11T Pro but i prefer my MI 9 phone...for me this one is the best balance phone (weight, size, performance,...)


New member
Aug 19, 2016
How do you flash the pixelOS recovery? been flashing but no luck when I go to my recovery its still the stock Mi recovery


Jun 4, 2018
Great ROM, thanks! Came from MIUI 12.0.xx and was not disappointed. Camera, bluetooth, fingerprint - everything works flawless. Also, much smoother then native ROM.
  • Like
Reactions: balgxmr

Top Liked Posts

  • There are no posts matching your filters.
  • 52

    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 Dynamic Partitions, do NOT use TWRP or OrangeFOX, they won't boot or if they do, it will lead to storage issues.
    - 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.
    - Suggested firmware: MIUI 12.5 or higher

    # 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

    Stable Release Date: 09/07/23
    Latest Release Date: 09/07/23
    Hi everybody! New update is up!
    Finally, QPR3 + July patch.

    For this time, dirty flash or OTA is fine. (If you experience OTA issues then try dirty flash.)

    Source changelog as always is on the website, and download too!
    Timezones for some countries has been finally fixed!

    Device changes:
    - Change fingerprint color to white with red center
    - Remove parts (clean speaker)
    - Switch to proper Doze implementation
    - Drop powersave governor
    - Update Audio HIDL to 7.1
    - Use foreground cpuset/uclamp for fingerprint
    - Merge kernel CLO tag 'LA.UM.9.1.r1-13700-SMxxx0.QSSI13.0'
    - Upstream kernel to 4.14.320
    - Switch to Simple Low Memory Killer
    - Misc. fixes and improvements

    * If you experience Pixel Launcher lags for any reason, clean the storage of Pixel Launcher, but be aware that this will delete the current setup/widgets.

    That's all, have a good day and enjoy! =]
    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