[T-Mobile REVVL V+ 5G] destreza7:
Disclaimers​

I am not responsible for any permanent bricking, data corruption, or loss of carrier service.

IMPORTANT: Make sure when it comes to installing MTK USB Drivers that you don't already have some version of the drivers already installed (through Windows Update for example) as having multiple MTK USB Drivers WILL cause connection issues, errors, and data corruption with MTKClient, I was forced to reinstall Windows to get rid of this conflict. Fixing the driver issues through typical uninstall methods were basically impossible.

GUI Method: Consider using MTKClient's mtk_gui to backup firmware and do the Carrier Unlock Exploit instead of running commands to do it.

MTKClient is much more reliable and stable on Linux, consider using Linux instead.

You are literally just wiping the carrier/SIM lock data on partitions protect1 and protect2 for the smartphone which will unlock it.

MTKClient requires a high quality data transfer USB C cable in order to function without error.

Make sure that both

1. OEM Unlocking is turned on

and

2. your bootloader has been unlocked

, in that order. You can use MTKClient to do it for you using command mtk da seccfg unlock without the use of adb/fastboot commands.

Failure to do this will possibly result in a bicked device.

▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬ ▬​

Firmware Dump/Backup:

1. Manually write down your smartphones IMEI information as a precaution in a text file and on paper.

2. Download Python 3.9: Download Python 3.9

3. Run installer

4. Tick the box "Add Python 3.9 to PATH" in the Python 3.9 installer

5. nstall Python 3.9

6. Download and install Git: Download Git

7. Unplug smartphone if plugged in

8. Power off smartphone

9. Download and install UsbDk: Download UsbDk

10. Reboot Windows

11. Open Command Prompt (Not PowerShell Terminal)

12. Run this command:

cd C:\Users\%USERNAME%\Downloads

13. Then, run these commands:

git clone https://github.com/bkerler/mtkclient
cd mtkclient
pip3 install -r requirements.txt

16. Run this command:

PLEASE CHECK EVERYTHING THAT WAS DONE WHEN YOU RUN THIS, DO NOT PROCEED WITH THE CARRIER UNLOCK EXPLOIT IF YOU GET ERRORS OR FAILURES WITH THIS COMMAND, POST IN THREAD FOR SUPPORT​

mtk rl --skip userdata "C:\Users\%USERNAME%\Downloads\Firmware Backup Files"

17. Hold both volume up and volume down buttons on the smartphone

18. Plug in smartphone, do not power on

19. Release volume buttons

20. Check if the firmware dump was successful, without error or failure

21. Compress your Firmware Backup Files folder to save a significant amount of space using a file archiver of your choice, you'll go from over 7 GB of used space to just about 3 GB if you compress it.

22. Copy your "Firmware Backup Files" archive to Google Drive or OneDrive, and your Documents folder.

Carrier Unlock Exploit:

1. Go back to the Command Prompt window

2. Run this command:

mtk e protect1,protect2

3. Hold both volume up and volume down buttons on the smartphone

4. Plug in smartphone, do not power on

5. Release volume buttons

6. Check if protect1 and protect2 erase was successful

7. Unplug smartphone

8. Power on smartphone

You are now finished.​