Flashing a custom recovery on a Unisoc device is more involved than on a Snapdragon. You must complete these steps attempting to install TWRP. Skipping these can result in a hard brick.
Example filename: TWRP_3.7.0_itel_Vision1Pro_UNOFFICIAL.img twrp itel vision 1 pro
Type fastboot reboot , then immediately hold the buttons until the itel logo appears, then release Power and keep holding Volume Down until TWRP starts. How to Enter Recovery Mode Later Flashing a custom recovery on a Unisoc device
Below is a comprehensive guide to understanding, preparing for, and installing . REVIEW | itel Vision1 Pro - The Power of Vision - bbrief twrp itel vision 1 pro
Accessing the bootloader on itel devices typically involves a hardware key combination: Bootloader Mode ITEL Vision1 Pro - HardReset.info