[Samsung Galaxy Tab A7 Lite] tseedmund:
@mvikrant97 Thank you so much for writing up this guide. I was able to get it to work with my T-Mobile US T227U. I haven't been able to get onto a GSI with everything working and auto security updates yet, but if the only thing I get from this is to remove T-Mobile's annoying jingle and splash screen on boot by cross flashing to Canadian official builds, that's a win.

Sharing some of my experience going through this process:

The device port showed up as just "Mediatek USB PORT", without the "_V1632".

The hardest part of all of this is trying to get it MKTClient to connect. Holding VolUp doesn't seem to work. I went with @pro_granade suggestion of using AndroidUtility to crash into BROM mode, no button pressing needed.

In the initial cross flash using MTKClient using files from sm_t227u_bin_fw, I only flashed the partitions that were in that folder. So boot_para and quite a few other partitions that wasn't provided I just skipped.

After doing Unlock Bootloader, I got the dm-verity popup on early boot.

Erasing seccfg partition using MTKClient lets me relock bootloader and dm-verity no longer complains.

SamFw Tool 4.9
[MAIN]
- Optimize read information faster
- Fix MTP reboot sometime return FAIL
[SAMSUNG]
- Add FRP 2024 (USA models)
- Move change CSC to MTP tab. Accept change without ADB
[FRP] - Add recheck paid service status
- Add auto write log to file
- Fix the X509 Certificate problem when run application
- Fix some bugs
There are a lot of scammers faking us
Please only buy credits directly on the website: https://samfw.com/frp
We do not ask you to send money. Keep your money safe
Select file BL_T227UVLS5DWC5_T227UVLS5DWC5_MQB63751147_REV00_user_low_ship_MULTI_CERT.tar.md5
Select file AP_T227UVLS5DWC5_T227UVLS5DWC5_MQB63751147_REV00_user_low_ship_MULTI_CERT_meta_RKEY_OS13.tar.md5
Select file CP_T227UVLS5DWC5_CP23992379_MQB63751147_REV00_user_low_ship_MULTI_CERT.tar.md5
Select file CSC_OYV_T227UOYV5DWC5_MQB63751147_REV00_user_low_ship_MULTI_CERT.tar.md5
No device selected
Using port SAMSUNG Mobile USB Modem #2 (COM7)
Using port SAMSUNG Mobile USB Modem #2 (COM7)
Reading info mode Reading info mode Download modeDownload mode ... ... OK
OK
Model : Model : SM-T227U
SM-T227U
CSC : CSC : TMB
TMB
AP version : AP version : T227UVLS5DWC5
T227UVLS5DWC5
FWVER : FWVER : 3
3
Unique number : Unique number : H154XXXXXXXXXXXXXXXX
H154XXXXXXXXXXXXXXXX
Storage : Storage : 32
32
Vendor : Vendor : SAMSUNG
SAMSUNG
Disk : Disk : GX6BAB
GX6BAB
DID : DID : d740ebd28b4c
d740ebd28b4c
TMU_TEMP : TMU_TEMP : 0
0
Firmware : https://samfw.com/firmware/SM-T227U/TMB
Firmware : https://samfw.com/firmware/SM-T227U/TMB
Analyze files...
Analyze files...
Flashing with Flashing with SAMSUNG Mobile USB Modem #2 (COM7)
SAMSUNG Mobile USB Modem #2 (COM7)
Flashing (1/25) preloader.img.lz4Flashing (1/25) preloader.img.lz4 OK
OK
Flashing (2/25) lk-verified.img.lz4Flashing (2/25) lk-verified.img.lz4 OK
OK
Flashing (3/25) param.bin.lz4Flashing (3/25) param.bin.lz4 OK
OK
Flashing (4/25) param.bin.lz4Flashing (4/25) param.bin.lz4 OK
OK
Flashing (5/25) efuse.img.lz4Flashing (5/25) efuse.img.lz4 OK
OK
Flashing (6/25) vbmeta.img.lz4Flashing (6/25) vbmeta.img.lz4 OK
OK
Flashing (7/25) grd_fw.img.lz4Flashing (7/25) grd_fw.img.lz4 OK
OK
Flashing (8/25) boot.img.lz4Flashing (8/25) boot.img.lz4 OK
OK
Flashing (9/25) recovery.img.lz4Flashing (9/25) recovery.img.lz4 OK
OK
Flashing (10/25) super.img.lz4Flashing (10/25) super.img.lz4 OK
OK
Flashing (11/25) vbmeta.img.lz4Flashing (11/25) vbmeta.img.lz4 OK
OK
Flashing (12/25) dtbo.img.lz4Flashing (12/25) dtbo.img.lz4 OK
OK
Flashing (13/25) gz-verified.img.lz4Flashing (13/25) gz-verified.img.lz4 OK
OK
Flashing (14/25) spmfw-verified.img.lz4Flashing (14/25) spmfw-verified.img.lz4 OK
OK
Flashing (15/25) scp-verified.img.lz4Flashing (15/25) scp-verified.img.lz4 OK
OK
Flashing (16/25) sspm-verified.img.lz4Flashing (16/25) sspm-verified.img.lz4 OK
OK
Flashing (17/25) tee-verified.img.lz4Flashing (17/25) tee-verified.img.lz4 OK
OK
Flashing (18/25) tzar.img.lz4Flashing (18/25) tzar.img.lz4 OK
OK
Flashing (19/25) vbmeta_system.img.lz4Flashing (19/25) vbmeta_system.img.lz4 OK
OK
Flashing (20/25) userdata.img.lz4Flashing (20/25) userdata.img.lz4 OK
OK
Flashing (21/25) md1img.img.lz4Flashing (21/25) md1img.img.lz4 OK
OK
Flashing (22/25) cache.img.lz4Flashing (22/25) cache.img.lz4 OK
OK
Flashing (23/25) omr.img.lz4Flashing (23/25) omr.img.lz4 OK
OK
Flashing (24/25) prism.img.lz4Flashing (24/25) prism.img.lz4 OK
OK
Flashing (25/25) optics.img.lz4Flashing (25/25) optics.img.lz4 OK
OK
Flash successfully
Flash successfully
Flash time: 03:38
Flash time: 03:38