How To Guide OneUi 5.1 , The Last Update Android Version For Tab A7 Lite / The best way to process GSIs /LineageOS 20 "Light" v.22-03-2023 works

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tom.android

Senior Member
Jul 12, 2016
1,342
401
Samsung Galaxy Tab A7 Lite
PDA / AP version T225XXU2CWB3
CSC T225OXM2CWB3 version
MODEM / CP T225XXU2CWB3 version


T225XXU2CWB3
(Can't downgrade)

Download FastbootD here

Full GSIs Processing with SM-T225
(From Up to Down)
FROM A11 through A13

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.
>Put 3in1.tar
( 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.)



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.
Code:
 adb devices
> 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
reboot system
Troubles Shooting
Not enough space to resize partition solution.
> fastboot erase product
> fastboot resize-logical-partition product 0x0
> fastboot getvar all
^Find this (bootloader) partition-size:product:0x0



Make System Writable
> *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.



Make CustomAP
from
New super.img.lz4
> 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.


Note:
>My CustomAP.tar.md5 for T225XXU1CWA2. (A13) only

Make Writable System and more spaces 500 Mb extra.

>Download here. https://mega.nz/file/TVEQ2DzR#EBtsS8LVriM-Hx--DNG_9vpTsGTSExzkH0zxn9_xH8A (3.37 GB)

>Odin: https://mega.nz/file/XVEAUAjI#RESS_gL_afkMoCr0-7eK5o_cMhkY1QFbCE2TDzegBgw

> 3in1 (magisk-patched boot + vbmeta + recovery-patch) for T225XXU1CWA2 only

Original GSI file. 834 MB by Nazim
"SparkOS-13.5.5-arm64_bvN-slim-Unofficial.img.xz , ReadOnly System"

Battery usage test result :
Screenshot_20230324-170924_Settings.png

**No Battery Drain. (check Phone idle values.)
 

Attachments

  • fastbootd-recovery.tar
    37 MB · Views: 195
Last edited:

tom.android

Senior Member
Jul 12, 2016
1,342
401
Samsung Galaxy Tab A7 Lite

Next test GSI ( if passed DSU )​

LineageOS 20 "Light"​

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.
Download: https://sourceforge.net/projects/andyyan-gsi/files/lineage-20-light/
LOS has "rooted debugging" in Developer Options. Turn that on then "adb root" for a rooted shell.
IMG_20230324_222027.jpg
step 1. flash GSI img with fastbootD.
( with gN variant, Gapps pre-installed)

Capture.PNG
Test restart android and boot menu.
Test all settings menu , default navigation. gesture navigation.
New Treble Setting Menu.

No DT2W. :ROFLMAO::ROFLMAO:
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.

ok Change to download and install this variant. lineage-20.0-20230322-UNOFFICIAL-gsi_arm64_vN.img.xz

IMG_20230324_235709.jpg


Step 2.
There are some error about loading Home menu..( guesture menu).
Please changes your Treble Settings configurations below. enable " Override navigation bar availability".

Screenshot_20230325-131612_Settings.png


2.1 Enable Hidden Magisk. and reboot.

2.2 Install Mixplorer ( Root File Manager) https://forum.xda-developers.com/t/...released-fully-featured-file-manager.1523691/


Step 3. Add more spaces to sub-partition inside Super partition about 700 MB.( for each sub-partition)
( i don't want to break default Root from original then no delete any files )
ok now we have spaces for install GAPPS.

Note: Didn't show detail here.

Step 4. Flash new system with Odin and try to install GAPPS.
( Create new CustomAP.tar.md5)

odin.PNG


Step 5. Install GAPPS.
There are 2 choices Gapps magisk module or regular install.

*Oh no not pass play protect block error.

Waiting for https://forum.xda-developers.com/t/gsi-13-lineageos-20-light.4509315/page-11

haha i'm dum dum..

✓Disable " Lift to check device" it conflict with "Double Tap".

Screenshot_20230325-114542_Settings.png


✓ Disable "Wake on plug" it annoy when open device and plug-in power cable.
Screenshot_20230325-120129_Settings.png


✓Enable Auto Screen Brightness.

Screenshot_20230325-123154_Trebuchet.png


✓Bluetooth connectivity works

Screenshot_20230325-124404_Settings.png


-Two-pane layout in Settings for tablet.

Screenshot_20230325-165330_Settings.png



Everything is ok now. except Offline-charging.

If i have time to fix "Offline-charging" and successful. then will share here.

✓ I had changed writable system partition and add spaces about 700 Mb , install new gapps which can shares . (system.img)

✓ Not all step are required for real installation , its my test step only.
 
Last edited:
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xyrn23

Member
Mar 29, 2023
34
0
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!!
 

xyrn23

Member
Mar 29, 2023
34
0
also what do you mean by offline charging?you mean that I can only charge it when I have an internet connection?
 

xyrn23

Member
Mar 29, 2023
34
0
I'm still confused about the instructions you provided
what I understand is
I need to put the 3in1 file you give on Ap slot to have fasbootd

then to flash gsi
> fasboot erase system
> fasboot flash system system.img

idk how can I flash gapps with magisk using odin
I already have the gsi file.
 

xyrn23

Member
Mar 29, 2023
34
0

Next test GSI ( if passed DSU )​

LineageOS 20 "Light"​

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.
Download: https://sourceforge.net/projects/andyyan-gsi/files/lineage-20-light/
LOS has "rooted debugging" in Developer Options. Turn that on then "adb root" for a rooted shell.
View attachment 5871171
step 1. flash GSI img with fastbootD.
( with gN variant, Gapps pre-installed)

View attachment 5871173
Test restart android and boot menu.
Test all settings menu , default navigation. gesture navigation.
New Treble Setting Menu.

No DT2W. :ROFLMAO::ROFLMAO:
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.

ok Change to download and install this variant. lineage-20.0-20230322-UNOFFICIAL-gsi_arm64_vN.img.xz

View attachment 5871267

Step 2.
There are some error about loading Home menu..( guesture menu).
Please changes your Treble Settings configurations below. enable " Override navigation bar availability".

View attachment 5871631

2.1 Enable Hidden Magisk. and reboot.

2.2 Install Mixplorer ( Root File Manager) https://forum.xda-developers.com/t/...released-fully-featured-file-manager.1523691/


Step 3. Add more spaces to sub-partition inside Super partition about 700 MB.( for each sub-partition)
( i don't want to break default Root from original then no delete any files )
ok now we have spaces for install GAPPS.

Note: Didn't show detail here.

Step 4. Flash new system with Odin and try to install GAPPS.
( Create new CustomAP.tar.md5)

View attachment 5871353

Step 5. Install GAPPS.
There are 2 choices Gapps magisk module or regular install.

*Oh no not pass play protect block error.

Waiting for https://forum.xda-developers.com/t/gsi-13-lineageos-20-light.4509315/page-11

haha i'm dum dum..

✓Disable " Lift to check device" it conflict with "Double Tap".

View attachment 5871603

✓ Disable "Wake on plug" it annoy when open device and plug-in power cable.
View attachment 5871605

✓Enable Auto Screen Brightness.

View attachment 5871611

✓Bluetooth connectivity works

View attachment 5871619

-Two-pane layout in Settings for tablet.

View attachment 5871715


Everything is ok now. except Offline-charging.

If i have time to fix "Offline-charging" and successful. then will share here.

✓ I had changed writable system partition and add spaces about 700 Mb , install new gapps which can shares . (system.img)

✓ Not all step are required for real installation , its my test step only.
this one
 

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  • 1
    i guess it's the fifth number from the bottom that really matters, and My FW version is T220ZCU1CVL5 so i can perform downgrading to any version before, is that correct?
    Can down or up only t220XXX1. Not 2 or 3
  • 3
    PDA / AP version T225XXU2CWB3
    CSC T225OXM2CWB3 version
    MODEM / CP T225XXU2CWB3 version


    T225XXU2CWB3
    (Can't downgrade)

    Download FastbootD here

    Full GSIs Processing with SM-T225
    (From Up to Down)
    FROM A11 through A13

    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.
    >Put 3in1.tar
    ( 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.)



    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.
    Code:
     adb devices
    > 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
    reboot system
    Troubles Shooting
    Not enough space to resize partition solution.
    > fastboot erase product
    > fastboot resize-logical-partition product 0x0
    > fastboot getvar all
    ^Find this (bootloader) partition-size:product:0x0



    Make System Writable
    > *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.



    Make CustomAP
    from
    New super.img.lz4
    > 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.


    Note:
    >My CustomAP.tar.md5 for T225XXU1CWA2. (A13) only

    Make Writable System and more spaces 500 Mb extra.

    >Download here. https://mega.nz/file/TVEQ2DzR#EBtsS8LVriM-Hx--DNG_9vpTsGTSExzkH0zxn9_xH8A (3.37 GB)

    >Odin: https://mega.nz/file/XVEAUAjI#RESS_gL_afkMoCr0-7eK5o_cMhkY1QFbCE2TDzegBgw

    > 3in1 (magisk-patched boot + vbmeta + recovery-patch) for T225XXU1CWA2 only

    Original GSI file. 834 MB by Nazim
    "SparkOS-13.5.5-arm64_bvN-slim-Unofficial.img.xz , ReadOnly System"

    Battery usage test result :
    Screenshot_20230324-170924_Settings.png

    **No Battery Drain. (check Phone idle values.)
    1
    T220XXU2CWB2
    (Can't downgrade)
    FastbootD
    here.
    1

    Next test GSI ( if passed DSU )​

    LineageOS 20 "Light"​

    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.
    Download: https://sourceforge.net/projects/andyyan-gsi/files/lineage-20-light/
    LOS has "rooted debugging" in Developer Options. Turn that on then "adb root" for a rooted shell.
    IMG_20230324_222027.jpg
    step 1. flash GSI img with fastbootD.
    ( with gN variant, Gapps pre-installed)

    Capture.PNG
    Test restart android and boot menu.
    Test all settings menu , default navigation. gesture navigation.
    New Treble Setting Menu.

    No DT2W. :ROFLMAO::ROFLMAO:
    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.

    ok Change to download and install this variant. lineage-20.0-20230322-UNOFFICIAL-gsi_arm64_vN.img.xz

    IMG_20230324_235709.jpg


    Step 2.
    There are some error about loading Home menu..( guesture menu).
    Please changes your Treble Settings configurations below. enable " Override navigation bar availability".

    Screenshot_20230325-131612_Settings.png


    2.1 Enable Hidden Magisk. and reboot.

    2.2 Install Mixplorer ( Root File Manager) https://forum.xda-developers.com/t/...released-fully-featured-file-manager.1523691/


    Step 3. Add more spaces to sub-partition inside Super partition about 700 MB.( for each sub-partition)
    ( i don't want to break default Root from original then no delete any files )
    ok now we have spaces for install GAPPS.

    Note: Didn't show detail here.

    Step 4. Flash new system with Odin and try to install GAPPS.
    ( Create new CustomAP.tar.md5)

    odin.PNG


    Step 5. Install GAPPS.
    There are 2 choices Gapps magisk module or regular install.

    *Oh no not pass play protect block error.

    Waiting for https://forum.xda-developers.com/t/gsi-13-lineageos-20-light.4509315/page-11

    haha i'm dum dum..

    ✓Disable " Lift to check device" it conflict with "Double Tap".

    Screenshot_20230325-114542_Settings.png


    ✓ Disable "Wake on plug" it annoy when open device and plug-in power cable.
    Screenshot_20230325-120129_Settings.png


    ✓Enable Auto Screen Brightness.

    Screenshot_20230325-123154_Trebuchet.png


    ✓Bluetooth connectivity works

    Screenshot_20230325-124404_Settings.png


    -Two-pane layout in Settings for tablet.

    Screenshot_20230325-165330_Settings.png



    Everything is ok now. except Offline-charging.

    If i have time to fix "Offline-charging" and successful. then will share here.

    ✓ I had changed writable system partition and add spaces about 700 Mb , install new gapps which can shares . (system.img)

    ✓ Not all step are required for real installation , its my test step only.
    1
    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!!
    Send pm please.