Step 1: Enter Mask ROM Mode Power off the X20 Mini. Hold the Volume Down + Power button simultaneously for 5 seconds. Connect the USB cable to your PC. You should hear the Windows "device connected" chime.
Step 2: Use Balena Etcher or RKDevTool
Step 3: The 2-Minute Wait Do not disconnect the cable. The device will reboot twice. The first reboot is the bootloader flash; the second is the root filesystem expansion. You will know it is successful when you see a golden Android boot logo (the signature of the Top CFW). x20 mini custom firmware top
The X20 Mini’s biggest weakness is its performance at dusk or indoors. The Night Owl CFW is the undisputed champion here. Step 1: Enter Mask ROM Mode Power off the X20 Mini