How To Guide [Close] GSI A13 PixelExtened 5.2

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ozmage

Senior Member
Jun 28, 2017
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Santo Domingo
Samsung Galaxy Tab A7 Lite
offline charging is working but after the % shows and display goes off when i try to see how much have charged the display does not come up pressing power button so holding it the system starts booting , i used the firmware that came with my SM-T220 out of the box SM-T220_XAR_T220XXU1AVB2 A11 with february security patch as base , could be the vendor the problem which one did you used and are you sure that customAP with this gsi can't be made with a12 as base <> ? maybe is the framework overlay used in /system/product/framework is from a11 stock rom or something else im going to try to make one with last a12 FW with october security patch and see if i can boot and solves the offline charge stuff also i need mtp :)

EDIT/UPDATE :

Made CustomAP With :

Build Number : T220XXS1BVJ2
Android version : S(Android 12)
Release Date : 2022-12-02
Security patch level : 2022-10-01

PEX Booted fine and MTP worrks
 
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tom.android

Senior Member
Jul 12, 2016
1,080
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offline charging is working but after the % shows and display goes off when i try to see how much have charged the display does not come up pressing power button so holding it the system starts booting , i used the firmware that came with my SM-T220 out of the box SM-T220_XAR_T220XXU1AVB2 A11 with february security patch as base , could be the vendor the problem which one did you used and are you sure that customAP with this gsi can't be made with a12 as base <> ? maybe is the framework overlay used in /system/product/framework is from a11 stock rom or something else im going to try to make one with last a12 FW with october security patch and see if i can boot and solves the offline charge stuff also i need mtp :)

EDIT/UPDATE :

Made CustomAP With :

Build Number : T220XXS1BVJ2
Android version : S(Android 12)
Release Date : 2022-12-02
Security patch level : 2022-10-01

PEX Booted fine and MTP worrks
1.PE + / PE Extended Can boot with A12 Vendor but File System will locked itself (can't install or update any apps due to source code >> must waiting for next release but with A11 vendor it works well.)

✓2.Offline-charging will break Samsung "Warranty Bit" Stop Freezing System State ( Can't reboot with Power-off/on button except press and hold Power+ Vol down)

✓ 2.1 It will only show % battery charging only when you insert cable with power source not by press power btn.
 

ozmage

Senior Member
Jun 28, 2017
298
73
36
Santo Domingo
Samsung Galaxy Tab A7 Lite
1.PE + / PE Extended Can boot with A12 Vendor but File System will locked itself (can't install or update any apps due to source code >> must waiting for next release but with A11 vendor it works well.)

✓2.Offline-charging will break Samsung "Warranty Bit" Stop Freezing System State ( Can't reboot with Power-off/on button except press and hold Power+ Vol down)

✓ 2.1 It will only show % battery charging only when you insert cable with power source not by press power btn.
1. Yes im getting AVC denial we have to find out how to set selinux to permissive mode and set the rom as userdebug i have tried adding to the kernel command line androidboot.selinux=permissive buildvariant=userdebug still enforcing after boot the only way is compiling the kernel with support to disable selinux in

https://github.com/DevZillion/andro...ifixx/blob/main/security/selinux/Makefile#L20 from true to false

PS : if we get permissive selinux ViperFX will work too and maybe fix TWRP touch
 
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tom.android

Senior Member
Jul 12, 2016
1,080
347
1. Yes im getting AVC denial we have to find out how to set selinux to permissive mode and set the rom as userdebug i have tried adding to the kernel command line androidboot.selinux=permissive buildvariant=userdebug still enforcing after boot the only way is compiling the kernel with support to disable selinux in

https://github.com/DevZillion/andro...ifixx/blob/main/security/selinux/Makefile#L20 from true to false

PS : if we get permissive selinux ViperFX will work too and maybe fix TWRP touch
Samsung insert coding against using permissive mode at boot time in the kernel. you can't changes it with app.
 

ozmage

Senior Member
Jun 28, 2017
298
73
36
Santo Domingo
Samsung Galaxy Tab A7 Lite
please add power management.
like frequency scaling governors ? powersave performance schedutil are already and default to last one using smartpack kernel manager they can be changed i use powersave a lot if u mean thermald is also present when you are on stock rom but in gsi is missing.

we need something else too force disable encryption in the vendor fstab making vendor image r/w and kept it that way
 
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ozmage

Senior Member
Jun 28, 2017
298
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Santo Domingo
Samsung Galaxy Tab A7 Lite
Last One Of Today Works :)

UPDATE: No R/W Sad ....

Custom Kernel (WIP) Testing Booted A12 Kernel On A11 Base Vendor With Xdroid GSI inserted modules from a12 vendor wifi / sound / bt all dead on A12 Base GSI Works Great But No Gsi A13 Works Good With A12 Vendor Gives All The Time AVC sepolicy Denials Even if The Kernel is Permissive And Can't Install Any Apk via Gui or With pm install always not Enough Space I have not found the Reason or Solution For This in respect of Features in this custom kernel for now Permissive To make ViperFx Working and Other Goodies Enabled Wireguard and Enabled DragonRise Generic GamePad Drivers To Be Used Via Otg Used Newer Toolchain and Added Some Minor Optimizations On Compile Time Tweaking The CFLAGS Well For now that's it. :/
 

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Difficul

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Jul 2, 2021
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Last One Of Today Works :)

UPDATE: No R/W Sad ....

Custom Kernel (WIP) Testing Booted A12 Kernel On A11 Base Vendor With Xdroid GSI inserted modules from a12 vendor wifi / sound / bt all dead on A12 Base GSI Works Great But No Gsi A13 Works Good With A12 Vendor Gives All The Time AVC sepolicy Denials Even if The Kernel is Permissive And Can't Install Any Apk via Gui or With pm install always not Enough Space I have not found the Reason or Solution For This in respect of Features in this custom kernel for now Permissive To make ViperFx Working and Other Goodies Enabled Wireguard and Enabled DragonRise Generic GamePad Drivers To Be Used Via Otg Used Newer Toolchain and Added Some Minor Optimizations On Compile Time Tweaking The CFLAGS Well For now that's it. :/
How to make my own custom kernel ?
 

Difficul

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Jul 2, 2021
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  • 3
    Last One Of Today Works :)

    UPDATE: No R/W Sad ....

    Custom Kernel (WIP) Testing Booted A12 Kernel On A11 Base Vendor With Xdroid GSI inserted modules from a12 vendor wifi / sound / bt all dead on A12 Base GSI Works Great But No Gsi A13 Works Good With A12 Vendor Gives All The Time AVC sepolicy Denials Even if The Kernel is Permissive And Can't Install Any Apk via Gui or With pm install always not Enough Space I have not found the Reason or Solution For This in respect of Features in this custom kernel for now Permissive To make ViperFx Working and Other Goodies Enabled Wireguard and Enabled DragonRise Generic GamePad Drivers To Be Used Via Otg Used Newer Toolchain and Added Some Minor Optimizations On Compile Time Tweaking The CFLAGS Well For now that's it. :/
    1
    Performance test software:
    - Install and Use DSU Sideloader with double speed of Stock A11. (may be the next thread separately) --> Howto install DSU Sideloader with CustomROM or A13 GSIs. very happy to test new A13 GSIs.

    Screenshot_20221207-205943_Pixel Launcher.png


    Download: https://sourceforge.net/projects/thegsis/files/PixelExtended/

    **Use this variant> PixelExtended-13-arm64_bgN-UNOFFICIAL.img.xz Only

    Why?
    supported - R/W system , exFAT , Auto Screen Brightness, Offline-charging and much more features than Pixel Experience

    Howto install this GSI.
    1. Use TWRP's Fastboot
    2. Use CustomAP md5.tar with Odin.

    Howto TWRP's Fastboot.

    flash1.PNG


    flash2.PNG


    flash3.PNG


    2. Use CustomAP md5.tar with Odin.
    **Test with A11 SM-T225
    ** Now i used only CustomAP Making for flashing with Odin , No
    TWRP ' s Fastboot flashing any more. (Except: want to dirty flash update GSI)


    using Magisk v24.3 patch (boot + vbmeta) flash at USER DATA Slot.
    odin.PNG


    First boot must connects internet and update magisk.
    When opening the Magisk App, does a popup with "Additional Setup needed" confirm that, it'll reboot and it should be fully installed.
    Screenshot_20221205-213806_Magisk.png


    Live Wallpaper Home Screen
    Screenshot_20221204-222852_Settings.png

    Fix the wrong Taskbar height.
    https://github.com/Coxxs/hide-tablet-taskbar/releases/tag/1.0

    download and install this module >magisk-pe-taskbar-fix-hide.zip

    hide: Long press taskbar to completely hide it (for Android 12.1+)
    • Long press bottom of the screen (when not in desktop) to show taskbar again
    • In PixelExperience ROMs, hiding the taskbar pill also fixes the problem of not being able to add icons to the desktop

    Screenshot_20221204-222924_Settings.png

    Custom Extension Features from PE


    Coinfigured with Treble Phh setting for GSI bug fix.
    Such as > set double tap to wake
    Screenshot_20221205-220315_PhhTrebleApp.png


    Install Google Search and update software after disable some apps.
    Screenshot_20221205-220851_Google Play Store.png



    Install Root File Manager App. For edit R/W System.
    Screenshot_20221205-221858_MiXplorer.png


    Face unlock works
    Screenshot_20221205-224019_Face unlock.png


    offline-charging
    It's help for breaking Samsung " Warrant bit " Stop state , which you can use power-off button to restart device normally.
    ( This feature did not have generally in all GSIs)
    IMG_20221205_225302.jpg
    1
    its work properly on samsung tab a7 lite?
    please reply.
    pictures from my DSU Sideloader On Tab 7 Lite SM-T225
    1
    hi, my model is the t225 T225OWO1BVGC_ZTO has Android 12, can I still downgrade? analyzing this information here below, is it possible? can you tell?
    Didn't unlocked bootloader? if so can't downgrade.
    1
    View attachment 5780311View attachment 5780317View attachment 5780325View attachment 5780327View attachment 5780329View attachment 5780333


    Pex is great but I needed to test stock , I have sources of a11 kernel now later going to make one compatible with a11 vendor base to use with the Gsi pointed on this post

    VIPER rocks @
    Wait , so you can make a custom kernel , so you can make it for twrp , it crashes