Unlock the bootloader

By softbrick · From NewbiesTeam, for the GT 20 Pro

Unlocking the bootloader is the first step before flashing OFOX recovery, custom ROMs and kernels. Read the whole guide, especially the warnings, before you start.

Guide based on infinix-gt20-pro.github.io.

1. Prerequisites

• An Infinix account logged in on the phone.
• The account must be at least 14 days old.
• OEM unlocking available in Developer options.
• A good quality USB cable.
• A Windows PC.
• MTK USB drivers installed.
• Android platform tools installed.

2. Unlock

1. Open Settings, About phone, Version info.
2. Tap Build number 7 times to enable Developer options.
3. Go to Settings, System, Developer options.
4. Turn on OEM unlocking and USB debugging.
5. Connect the phone to the PC with the USB cable.
6. Open the platform-tools folder.
7. Click the address bar, type cmd and press Enter.
8. Run adb devices to check the connection. Tap Allow on the USB debugging prompt on the phone.
9. Run adb reboot bootloader to boot into fastboot mode.
10. In fastboot mode, run fastboot flashing unlock.
11. A confirmation screen appears on the phone. Press Volume Up to confirm the unlock.
12. Wait for the unlock to finish.
13. Reboot with fastboot reboot.
14. The phone factory resets itself on the next boot.

adb devices,adb reboot bootloader,fastboot flashing unlock,fastboot reboot

The commands in order. Run them one at a time in the cmd window you opened inside platform-tools.

3. After unlocking

The phone is ready for OrangeFox (OFOX) recovery, custom ROMs and kernels. Continue with OFOX flash.

4. Warnings

• The first boot after unlocking can take several minutes.
• OTA updates may fail or be blocked on modified recovery setups.
• Wrong flashing procedures can leave the phone unable to boot.
• Only continue if you understand the risks. You are responsible for anything that happens to your phone.