[AOSP 8.1] [2019-03-06] Phh-Treble

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hi all . I have tried to install gsi on Pixel Xl with no success. the closest i get is the android splash screen, it just sits there and shimmers (almost hypnotic). is there something Im missing? I've tried many tutorials using TWRP and fastboot with different wipe instructions to no avail. I'm hoping someone here has experience specifically with Marling US 128gb starting from the latest factory img . I know my details are vague however I've followed so many different tutorials that my head is spinning.
Edit. also for some reason I can successfully issue adb reboot commands while on the shimmering android screen. that seems odd to me.
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Senior Member
Apr 3, 2014
New Albany, IN
OnePlus 7T
hi all . I have tried to install gsi on Pixel Xl with no success. the closest i get is the android splash screen, it just sits there and shimmers (almost hypnotic). is there something Im missing? I've tried many tutorials using TWRP and fastboot with different wipe instructions to no avail. I'm hoping someone here has experience specifically with Marling US 128gb starting from the latest factory img . I know my details are vague however I've followed so many different tutorials that my head is spinning.
Edit. also for some reason I can successfully issue adb reboot commands while on the shimmering android screen. that seems odd to me.

needs vbmeta.zip or permissiver v4 zip
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That's one of the tutorials I followed. They're referring to older Android versions so I thought maybe I was missing something. I've truly searched in earnest for a solution but haven't been successful completely booting a 10 or 11 GSI . No luck with the treble ROMs either. Thanks for taking the time. I will keep googling ?
Update: I had been following the guides with my device on the 10 factory image. once I downgraded to 8.1 factory I was able to get on straight android 10 with Gapps thanks to Phh aosp 10 with gapps. After a backup i will try to flash R GSI. BTW no vbmeta or any other stuff was needed. booted 8.1, rebooted to recovery did factory reset, rebooted to bootloader, fastboot erased system, fastboot flash name of system img and reboot. didnt take more than three minutes to boot into the "Hi" screen.
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New member
Oct 13, 2020
I have an Huawei P 10. I m trying to get AOSP Android 8.1 Oreo Phh-Treble on there. The download link on github from the first post leads to an 404. Where can I download this? Thanks


New member
Oct 23, 2020
AOSP 8.1


I have a unique need for AOSP 8.1 LG flip phones.

Any way we can talk?

What be a good number to reach you?
Download link for 8,1 at original post is down. Where can i get it?

__ all versions are here : (8.1,9,10,11)
(I think the latest version 8.1 is AOSP 8.1 v32)
Press the keys Releases & Tags, to find what you want , and the latest versions etc)

Anyone looking for Google Playstore certification on any rooted android device.

1.Use a root file explorer.
2. Navigate to data/data/com.android.vending/sharedprefs
3. Look for file named finsky.xml
4. Open finsky.xml with your root explorer text editor.
5. Look for a line that say:
" <boolean name="device-google-certified" value="false" />"
6. Change the word "false" to "true" inside of the quotes.
7. Save, exit and reboot.
8. Once reboot goto playstore settings and scroll down, check "device is certified"

I was tinkering about with android TV boxes and thought I would try it on phones. It will help with some apps and updating playstore etc etc.

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May 22, 2021
Hey i need help when i try to flash the system_a and system_b and vendor, it say : "FAILED (remote: 'Partition not found')".

I'm on OnePlus N10 5G and my device is compatible.



Sep 1, 2021
All GSI's listed do not work on the DOOGEE S88 PRO. Yes I went from latest Android 11 aosps right down to android 9.

I followed these flashing steps:

1. Factory reset, enable OEM unlocking and usb debug
2. ADB reboot bootloader
3. Fastboot flashing unlock
4. Fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img (one downloaded from Google.)
5. Fastboot reboot fastboot
6. Fastboot erase system
7. Fastboot flash system system.img
8. Fastboot reboot

Boots into recovery saying that I need to factory reset the device, of course picking any option just causes the same bootloop.


Senior Member
Sep 21, 2021


Senior Member
Sep 21, 2021
Camera and Fingerprint not work.
This is an experimental GSI image. Not everything will work. Also, sony erases the TA partition when you unlock your bootloader, which contains DRM keys for the camera and other hardware-specific features. No new features will be added. This ROM is simply designed to ease the process of porting AOSP to other devices. Parts of hardware that don't support the Treble API will not work!

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  • 437
    WARNING: You'll most probably loose ALL your data, and might break your phone. Please use with extreme caution!

    The goal of this ROM is to provide full Treble-compatible hardware support, and nothing else.
    This means that hardware which DON'T have Treble API won't be supported, like Essential's external camera.
    No feature will be added. This will ease forward porting to new Android versions, which is the very goal of Project Treble :)

    My hope is that other ROM developers will use this ROM as a basis to construct more advanced ROM.

    For a list of supported devices, consult and fill https://github.com/phhusson/treble_experimentations/wiki

    How to flash:
    Follow instructions available at https://www.xda-developers.com/flash-generic-system-image-project-treble-device/

    v29 (2019-03-06):
    - March security patch
    - Fix MT6739 incoming SMS and mobile data

    v27 (2019-01-08):
    - January security patch
    - arm32_binder64 variant
    - Minor stuff

    v25 (2018-09-07)
    - September security patch
    - [Mi 6X/Mi Pad 4] Fix backlight
    - [Mi Mix 2S] Disable fingerprint button behaviour
    - [Galaxy S9/Note 9]
    - Fix (some) MTK incoming call
    - Fix a2dp on some devices
    - Fix boot on some devices

    v23 (2018-08-07):
    - August security patch
    - Fixes tethering on some Qualcomm devices (Thanks @notsyncing)
    - Enable Ambient Display for everyone
    - Add an off-computer flasher (first step towards OTA)
    - Fixes MTP
    - Fixes fingerprint on Moto devices
    - Change Huawei quick charge based on device (Thanks @Dil3mm4 )
    - Fixes camera on Moto devices
    - Fix notches height for some devices (Thanks @tadiT7)

    v22 (2018-07-03):
    - July security patches
    - Fixes Samsung Galaxy S9 fingerprint enrollment
    - Fix in-call audio for Pixel 2
    - Disable night mode on some MTK for which it is very slow
    - Fix wifi tethering on some configurations

    v21 (2018-06-27):
    - [OnePlus 6] Fix booting on A slot
    - [OnePlus 6] Fix userdata filesystem size
    - [OnePlus 6] Include a framework-res overlay (fixes auto backlight, improve battery-life, ...)
    - Fix status bar height for notches on various devices (Thanks @tadiT7)
    - [Samsung Galaxy S9 Qualcomm] Fix backlight
    - Fix webview in Android Go variant
    - Fix audio jack for some devices
    - Fix H264 encoding on Huawei (Thanks @OldDroid)
    - Fix backlight on some SDM845 devices (Xiaomi Mi Mix 2S, Xiaomi Mi8)

    v20 (2018-06-07):
    - June Android security patch level
    - New experimental FLOSS variant (check sources for list of apps)
    - [OnePlus6] Fixes backlight
    - [OnePlus6] Partial support for DnD slider
    - Fixes bug on some A/B devices where device would stop booting after several success

    v19 (2018-06-03):
    - Huawei fast charge (Thanks @flex1911 and @OldDroid)
    - Fix MTK TrustKernel TEE (those devices will need to factory reset!)
    - Support 32bits Android 8.0 devices
    - Rewrite Security Patch Level for Android 8.1 devices, and A/B devices as well. Should fix boot for some devices.
    - Enable GPU profiling on Huawei devices to fix UI glitches
    - Fixed Modded Google Camera installation
    - Use round icons
    - Enable doze
    - New Android Go variant
    - On Huawei devices add "Swipe fingerprint for notifications" option
    - Releases are now compressed with xz. Uncompress before flashing.

    v18 (2018-05-14):
    - Update to Android Security Patch level 2018-05-01
    - Disable HW keystore on mediatek devices using trustedkernel, until it is fixed
    - Re-enable Huawei navigation keys (Thanks @LuK1337 and OpenKirin team)
    - Fixes android build version/security patch level (might lead to stuck on bootanimation some devices)
    - Enable NightMode for everyone
    - Enable automatic backlight with Huawei Mate 9 settings on Huawei devices
    - Remove unnecessary warning on boot (if you still get it, it means it is useful, to tell me!)
    - Include android.system.net.netd, fixes data connection for several Qualcomm devices

    v17: (2018-04-24)
    - Fixes multimedia from SDCard
    - Fixes in-call audio for Qualcomm devices
    - Fixes in-call earpiece/speaker for Foxconn/Qualcomm devices (Razer Phone, Sharp Aquos S2, ...)
    - Fixes signal level for Huawei devices (Thanks to OpenKirin team)
    - Fixes boot on some A-only devices (HTC U11+, Xperia XZ1 at least)
    - Report vendor's security patch level instead of framework security patch level
    - Fix fsck for f2fs (Thanks @flex1911 and @LuK1337)

    v16: (2018-04-05)
    - Fixes MTP access to sdcard
    - v15 was missing graphical glitches fix. Applied it again.
    - Resize /system to maximum size on first boot

    v15: (2018-04-03)
    - Update to 2018-04-01 security patches
    - Fixes FAT sdcards
    - Fixes some USB-C headphones on some devices
    - Fix Essential PH-1 boot

    v14: (2018-03-26)
    - Fixes Galaxy S9(+) backlight control

    v13: (2018-03-23)
    - Disable Android's fake touches, which made unlocking hard
    - Fixes Galaxy S9 boot and WiFi
    - Make system.img back to 1.5GB
    - Disable again adb auth, to help debugging

    v12: (2018-03-05)
    - Updated to security patch 2018-03-01
    - Various stability, behind-the scene, changes
    - Fixes camera on MTK devices
    - Support ARM32 devices
    - Supports HW button backlight

    v11: (2018-02-20):
    - Fixes bluetooth on Kirin 970 devices (Thanks @LuK1337)
    - Fixes sdcard on Huawei devices
    - Includes nfc-nci.conf, should fix NFC on some devices
    - Show real Android version (Thanks @LuK1337)
    - Enable ADB authentification

    v10: (2018-02-18)
    - Android 8.1 !
    - Includes versioned vndk, so devices running both 8.1 and 8.0 should work

    v9: (2018/01/15)
    - Include the compositing fixes for Kirin 970
    - Crude support for Huawei fingerprint gestures (click = home, left = back, right = voice assistant, up = quick settings, down = notifications, long press = recent apps)

    v8: (2018/01/14)
    - Huawei compositing fixes (fixes various graphical glitches)
    - Various su SELinux fixes

    v7: (2017/12/30)
    - Fixes various regressions (APNs, A/B, vanilla, fingerprint ...)
    - Fixes dev/input requirement (not useful to any real-life product yet, afaik)
    - Fixes some not-installable applications from Play Store
    - Fixed substratum in phh's superuser

    v6: (2017/12/19)
    - Major code clean-up. Please report regressions
    - Fixes random reboot on Huawei devices
    - Optionally includes SU (you need to install phh's SuperUser from F-Droid/Play Store)

    v5: (2017/12/14)
    - Fixes FDE decryption (SystemUI was crashing in loop)
    - Use a real list of APNs
    - Include Chrome and Gboard (fixes IME crash when trying to input a symbol)
    - Fixes SEPolicy for Hardware Overlay Picker (should fix crash of Hardware Overlay Picker on startup)

    v4: (2017/12/10)
    - Fixes sdcard in MTP
    - Fixes Dual-SIM
    - Includes hardware-specific overlays:
    - Enable 4G selection in networks
    - Bigger status bar on Essential PH-1
    - Enable navigation bar on HTC U11+

    v3: (2017/12/04)
    - Fixes sdcard in MTP build fail, so will be fixed in next release
    - New variant including gapps

    v2: (2017/11/26)
    - Fix wifi tethering
    - Fix F2FS userdata
    - Fix sdcard
    - Fix fingerprint (Huawei)


    Want to chat about this project? Go to Freenode IRC, #phh-treble.
    IRC: irc://irc.freenode.net/#phh-treble
    WebIRC: http://webchat.freenode.net/?channels=#phh-treble&uio=d4
    Matrix: #freenode_#phh-treble:matrix.org

    Other chatrooms:
    Telegram https://t.me/phhtreble

    Thanks @MishaalRahman and @Exelios for the huge kickstart help

    Thanks to all my donators:
    - @Exelios

    - @fargonaz
    - @VictorM86
    - @howdid
    - @heatfire
    - @ohwarumbloss
    - @RexGoogolplex
    - @abhas.abhia
    - @Emoclaw
    - @Sebianoti
    - @DocRambone
    - @egandt
    - @Blackbird1997
    - @Burakki
    - @josdehaes
    - @TheUndertaker21

    Thanks to the following companies:
    - Huawei, for a Huawei View 10
    - Blackview, for a Blackview A20

    PS: Yes the name sucks, but I'm clueless about a name
    How to know if your phone is supported:

    - Does your OEM provides a stock Oreo ROM?
    No ===> Your phone is not supported
    - Run Treble Check on stock Oreo ROM. Does it say Treble is supported?
    No ===> Your phone is not supported

    If all answers are yes, then your phone MIGHT be supported.
    Test it, and report the result!
    Build script available at https://github.com/phhusson/treble_experimentations/blob/master/build.sh

    Current status:


    Xperia XZ1:
    - Broken camera (because of Sony's DRM)

    Huawei Mate 9 Pro and Honor 9:
    - Fingerprint sensor should have "home" behaviour
    - software keys should be disabled

    Known end-user problems (WON'T BE FIXED in this ROM):
    - No exfat
    Known mess:
    - A-only should use https://android-review.googlesource.com/q/hashtag:"non-ab-boot-gsi"+(status:open OR status:merged) instead of dm-verity hacks
    - the dm-verity work-around is also needed on A/B, so other patches are missing, for some other reason
    - On A/B devices, this system.img effectively transforms the device into a userdebug build. This means adb root works!
    adb root should work on A-only later too, though it requires that the OEM includes https://android-review.googlesource.com/q/topic:move-adbd-to-system+(status:open+OR+status:merged)
    This can probably be worked-around by moving adbd inside a /system/etc/init/xxx.rc
    - ADB auth is totally disabled at the moment on A/B, this is bad, but useful for debugging.
    - Huawei (for instance Mate 9) doesn't declare android.hardware.fingerprint. This ROM does it for them, but this need to be better implemented
    - SuperSU and Magisk screws with SELinux policy. DO NOT USE SuperSU OR Magisk WITH THIS ROM
    There, I released my first Android 8.1 version.
    Overall, I consider it less stable than 8.0, but I think it should be usable.

    For the known limitations:
    - On MTK, camera doesn't work
    - On Huawei, I could get Huawei stock app to run

    And Download manager is still broken, so you still have to kill play store every time you want to download an app...

    Dirty flash should work, but I barely tested it.

    It took me a lot of effort, so please enjoy :)