Lenovo Tab 4 7" Essential TB4-7304i FRP Remove ?

[Reason gurung]

Lenovo TB TB-7304I frp problem.
use all toos not working help me.

[Brka]

Okay,

BEFORE BEGIN - CHARGE FULLY your device/tab !!!

FOLLOW ALL STEPS CAREFULLY ! (Especially part with formatting) !!!
All mistakes are made by you, and you only ! No one will warrant anything !
All goes on your responsibility!


Now, lets make this guide as much simple as possible.

- Download ROM, with all needed inside: TB4-7304I_S000041_171018_ROW
- Unpack archive. pass: lenovo-forums.ru


- Start SPFT, from unpacked folder \TB-7304I_S000041_171018_ROW\i-x_flash_tool\flash_tool.exe
- Select DA Agent - DA_SWSEC.bin
- Load scatter file from root folder \TB-7304I_S000041_171018_ROW\MT6737M_Android_scatter.txt
- Main SPFT Window, go to drop-down menu "Options" - "Option" - "Download" - select both fields, close window
- Main SPFT Window - Go to "Format" tab, select "Validation", "Manual format flash",
copy/paste marked in red "Begin address" : 0x6a00000 , "Format length" : 0x100000
- Press "Start" button, connect powered off device to cable.
- Wait for finish, green circle will be displayed (process goes fast - 4-7 seconds).

- Enter device recovery, make "Wipe data/Factory reset", then "Reboot device".
- FRP Should be gone.

If you encounter "DL Image Failed" or "Tool DL failed" in bottom left corner, and reboot,
Simply reflash device with provided rom.
(Same procedure, but you don't do any format, just from main window, Download button.)

p.s. Check attached images if something not clear. They explain all.

p.s.2 If you get some error like in THIS post,
then also load authentication file in SPFT - "auth_sv5.auth"

Now, try and post results.

b.r.
Alex

[tgcommss]

Tried not work , this tab is secure boot !

[Brka]

Originally Posted by tgcommss

Tried not work , this tab is secure boot !

By default, if booting don't go / error - you should change DA_Agent first ...


1) Try flashing full ROM first. (or just cache/userdata) - If that works, you're ready to go.

2) Pay attention that you need enabled "USB checksum" and "Storage Checksum" in SPFT.

3) SPFT used: Folder \TB-7304I_S000041_171018_ROW\i-x_flash_tool\flash_tool.exe

4) Load DA Agent - select DA_SWSEC.bin

5) Load scatter file from root folder \TB-7304I_S000041_171018_ROW\MT6737M_Android_scatter.txt

6) If don't work - load authentication file from folder - auth_sv5.auth

7) If you get "Tool DL Image" (or similar error on screen bottom left corner) after FRP, and/or tab rebooting, reflash again stock rom.
(You can flash only CACHE.img, to fix "Tool DL error")


Test and post results.


b.r.
Alex

[tgcommss]

Thanks for fast reply , i-x_flash_tool\flash_tool.exe use DA_SWSEC.bin tick flash preloader cache only okay . But i cant success hard reset with vol up down key or both keys , so i not dare to do manual format 0x6a00000 / 0x100000 . Any safe suggestion ?

[Brka]

Just do manual format ... be carefull about start address and length.
After that flash cache and userdata, it's the same as manual hard reset.

b.r.
Alex

[tgcommss]

Its done by manual format , thank you !

[princemeedo]

I gotl lenovo tab model 7304i

Got goole account so i flash it with small file which is remove google . My tab now is stuck not working . When i want to flash it again PC can feel it but not starting to flash not giving me any error but when i flash another phone its working help

Ur help will be highly appreciate it

[Brka]

Originally Posted by princemeedo

I gotl lenovo tab model 7304i

Got goole account so i flash it with small file which is remove google . My tab now is stuck not working . When i want to flash it again PC can feel it but not starting to flash not giving me any error but when i flash another phone its working help

Ur help will be highly appreciate it

Merged with existing thread. Read it from beginning,
use flash file and flasher which is in same package.
Settings are same as for FRP reset/format,
only difference is that you need to flash firmware.

b.r.
Alex