Development [ROM][12.1][OFFICIAL] PixelOS [AOSP][ALIOTH/ALIOTHIN][09/05/2022]

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Apr 11, 2022
Is there any way to make the alarm/call vibration stronger? Or is it simply because my case is too stiff/thick and it's muting it? Though I seem to remember seeing posts on reddit complaining about the vibration being weak too.


New member
Sep 22, 2017
Flashed it today and everything is fine but can't use the fast charger
It freezes and keeps restarting everytime the cable is plugged in
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Feb 27, 2022
Anyone having issues with wear os app on this rom? Freezes on the splash screen and does not open.

Then we view starts playing up until you uninstall it


Jun 20, 2019
this rom is really weird. Random restart, camera slow process and it recovery mode just straight up deny installing other roms
Last edited:

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    Do you mean the unofficial build by @Eidoron1
    Nope. @Zeetaa is new maintainer. Keep eye out on the website.
  • 33

    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), a fork of OG Pixel Experience with improvements on the top of it. Huge respect to Pixel Experience team for their work, thanks to them for making this ROM possible.
    In short a fully functional Pixel Experience with just the right amount of essentials.

    /* 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.

    Improvements over PixelExperience
    Performance improvements from ProtonAOSP
    Adopted screenshot sounds to ringer mode
    3-finger swipe to capture screenshots
    Double tap to sleep on lockscreen and status bar
    Added Screen Recording Customizations
    Added Advanced Reboot
    Allow disabling Screenshot Sounds
    Added Bluetooth headset battery indicator
    Spoofed as Pixel XL for Google Photos for unlimited backup in original quality
    Added themed icons for a lot of third party icons in stock Pixel launcher
    Added monet in power menu
    Exposed legacy WiFi and Cellular data QS tiles
    Added bluetooth battery level indicator on status bar
    Added NFC tile in QS for supported devices
    Added double tap/long press power button to toggle torch
    Reduced log spam verbosity
    A lot of under the hood UI fixes and improvements

    Device Specific Issues:
    Tell me

    • Latest Global Stable Android 11 firmware for alioth.

    Get the latest PixelOS Build for alioth Download
    Magisk (optional)

    Recovery OrangeFox
    PixelOS Recovery

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

    • Encryption is enabled by default
    • SELinux is enforcing
    • Safetynet passed by default

    PixelOS Recovery is recommended if you want to stay encrypted, no custom recovery supports encryption on Android12, i.e. you won't be able to decrypt your data.
    Flashing Instructions
    Clean flash (coming from a different ROM):

    • Download ROM from the link above
    • Download Magisk v23.0 or newer (optionally)
    • Reboot to recovery
    • Format data (if encrypted)
    • Flash ROM zip
    • Reboot and voila!
    • To get root access, reboot to recovery after ROM setup and flash magisk.

    Updating to a newer build (dirty flash):
    • Flash ROM zip and magisk (optional)
    • Reboot and voila!

    Join our Telegram Group
    Alioth support group: cristianvazsupport
    Buy me a Coffee

    Source Code
    Device Tree
    Kernel Tree

    ROM OS Version: Android 12.1
    ROM Kernel: Linux 4.x
    Stable Release Date: 09 May 2022
    Latest Release Date: 09 May 2022

    # 27-Apr-2022
    - Update PowerProfiles to Android 12.1
    - Update to last N0kernel Beta
    - Update corner radius from stock
    - Align side fps ripple animation
    - Fix Video Calling
    - Some QTI Bluetooth fixes and improvements
    - Fix Mifare nfc
    - Fix AOD animation with Deep sleep
    - New High Polling Rate implementation (source side)
    - Implemented LiveDisplay and HBM
    - Ram improvements

    # 09-Apr-2022
    - Rebased LOS 19.1 trees
    - Change to n0kernel
    - Updated vendor to MIUI 13.0.2
    - Audio configurations from MIUI 13
    - AOD auto brightness
    - Improved thermal profiles and refresh rate per app listview
    - QTI Bluetooth
    - Deep sleep on AOD
    - Implemented Smooth Display

    # 14-Mar-2022
    - Change to new trees (base LOS)
    - Change to Arrow Kernel
    - Doze settings
    - HOS Display calibration and HDR props
    - Thermal profiles and QS Tile
    - Clear speaker
    - Refresh rate QS Tile
    - More optimizations

    # 11-Feb-2022
    - Improved night display temperature
    - Implement quicktap
    - Fix statusbar burn in protection
    - Improved ui smoothness
    - Some audio changes
    - Implement IORap
    - ART optimization
    - Imported rounded corners overlays from gourami
    - And more fixes and improvements under the hood

    # 16-Jan-2022
    - Updated Optimus kernel to v11.32
    - Show refresh rate controls
    - Fixed error alioth,aliothin using prebuilt recovery
    - Align fp indicator with power button
    - Display correct charging speed
    - Allow all filesystems for USB-OTG
    - WiFi improvements
    - Audio improvements
    - Imported some blobs and config from MIUI 13
    PixelOS 12.1 update ready and post edited with changelogs!!

    So, though I do not like MIUI... at all... I thought I had nothing to lose trying to use the batch script to load the ROM. It's a 4GB file but it didn't take too long and I extracted it, booted the phone to fastboot and ran the windows batch script. It seems to have worked, so I have a functional OS again. So I'm kind of back at the start. Can someone point me to an IDIOT proof installation How To for Pixel OS?
    1. download PixelOS ->
    2. download PixelOS Recovery ->
    3. download Android SDK Platform-Tools ->
    4. unzip platform-tools_r?? and copy PixelOS_alioth-12.0-2022???-????.zip and boot-alioth-2022????.img inside the unzipped folder (in the same folder where adb.exe and fastboot.exe are)
    5. power off phone and power on with power + volume down (going to fastboot)
    6. plug the phone to your computer and check if the phone is recognized: run from terminal (from the platform-tools folder) "fastboot devices" (you should see a device listed)
    7. run "fastboot flash boot boot-alioth-2022????.img" and after some seconds you should get a finished message, then unplug the phone from the computer
    8. reboot the phone in recovery mode ( power + volume up )
    9. do a "Factory reset" -> "Format data/factory reset" (you will loose all data, so do a backup before)
    10. go to main screen of recovery mode and select "Apply update" -> "Apply from ADB". Plug the cable to the computer
    11. run from the terminal "adb sideload PixelOS_alioth-12.0-2022???-????.zip" and wait the process to finish (reaching 100% from terminal - and Step 1/2 / Step 2/2 on the phone). Unplug the phone from the computer
    12. go to main screen of recovery mode and select "Reboot system now"
    You will lose TWRP (but at this time TWRP is not working with Android 12 encryption, so better use PixelOS Recovery. It'll support also OTA update).
    You need to have also the bootloader unlocked.

    Edited: fixed the command "fastboot flash boot boot-alioth-2022????.img" adding the missing the "boot" option.
    Rom and changelogs updated!! enjoy