I see android 13 prevents us to rollback
I remember that firmware was the a13 firmware installed on my device before
ohhh so custom ap is already have gsi on it I'm sorry im dum dum xD
upload your" recovery.img.lz4" which extracted from your AP firmware here . i will patch it and upload for you.
no only T22XXX 1 xxx only can downgrade to or from Android 13 - Android 11
New fastbootD ( Full Tutorial Here )
Flash Firmware and Customed Files. (Firmware +Root + FastbootD)
|>Obtain the official firmware. https://samfw.com/|
|>Download & Extract it and you will get 5 files (AP, BL, CP, CSC and HOME_CSC)|
|>Open Odin on your computer and reboot your device to DOWNLOAD mode ( turn-off device , press and hold Vol+ together with Vol- then insert USB cable which one end connected with computer to device.)|
|>Put AP, BL, CP, and CSC files in their Odin slots.|
* Home_CSC for advanced user only.
** Do not changes input fileName for shot.
( patch boot + vbmeta + patched-recovery ) in UserData slot.
|>Click "Start" and wait for it to finish.|
( No interruption)
( From now on Magisk & FastBootD recovery will remain in your device.)
Note: vbmeta.img was patched by Magisk the same as with fastboot command .
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
Use FastbootD flash GSI image.
|>*Based Firmware should be Official only.|
|>*Download & extract Platform-tools to C:/ https://developer.android.com/studio/releases/platform-tools|
|>*Download GSIs images.|
|>Open device and connect USB cable to Computer.|
|>Run CMD within Platform-tools Folder.|
|> adb reboot fastboot|
|> fastboot erase system|
|> fastboot flash system gsi_name.img|
NOTE: gsi_name.img. must changed to actual name of your extract download GSI from the Sources.
|> fastboot reboot recovery|
|* Select wipe data / factory reset|
|Not enough space to resize partition solution.|
|> fastboot erase product|
|> fastboot resize-logical-partition product 0x0|
|> fastboot getvar all|
|^Find this (bootloader) partition-sizeroduct:0x0|
Make System Writable ( need more details)
|> *Get rid of SU from bvS, bgS GSI Variant.|
|> *Execute phh-securize.sh|
|> *Enable pre-install Magisk|
|> *Install Root file Manager. Mixplorer from XDA here|
|> We will dump device super-partition and patch it with script.|
*Install & Execute Read2Write script.
|> Get New super.patch.bin. (output of script )|
|> Compress super.patch.bin to super.img.lz4|
( lz4 -B6 --content-size super.bin super.img.lz4 )
|***Don't use fastboot flash super super.img with FastbootD.>>>This will brick you device.|
|> Create New CustomAP tar md5 for Odin. ( with new patched super.img )|
|Download Clean (blank) vbmeta.img from Google|
|>Compress the clean vmbeta.img|
lz4 -B6 --content-size vbmeta.img vbmeta.img.lz4
|>Down& Extract "tar-md5-script-tool.zip" to C;\|
|>extract all *.img.lz4 files (from AP Stock) to. C:/ tar-md5-script-tool folder|
|>Replace super.img.lz4 and vbmeta.img.lz4|
in tar-md5-script-tool dir
with your new repacked and compressed
|>Run Win Batch File For Packing Custom AP file|
|> Flash Firmware together with CustomAP|
BL slot = BL fie from Firmware.
AP slot = CustomAP file from my Download.
CP slot = CP fie from Firmware.
CSC slot = CSC fie from Firmware. not Home_CSC
UserData = 3in1 patch.tar
|** Do not flash CustomAP Alone. (Safety First )|
|** Do not flash super partition with FastbootD.|
|To mount or modify the image , it has to be unshared. Light is simply unshared to begin with.|
|Updated all variants with Android 13 QPR2 and March security patches.|
|LOS has "rooted debugging" in Developer Options. Turn that on then "adb root" for a rooted shell.|
|step 1. flash GSI img with fastbootD.|
( with gN variant, Gapps pre-installed)
|Test restart android and boot menu.|
Test all settings menu , default navigation. gesture navigation.
|New Treble Setting Menu.|
✓ Fixed it. by install "Double Tap" from google play.
oh..Not passed play protected.
✓Fixed it by Enable Treble Setting>"spoof system properties" checkbox right below... Tick that and reboot.
Send pm please.hmmm I have unlocked my bootloader and rooted my phone using magisk also downgraded from a13 to a11(T225XXU1AUE3). I would love to install gsi/custom rom with this low end tablet can you make a more clearer instructions for a beginner like me?I would highly appreciate if you response,have a good one!!