Boot the phone into stock recovery mode (usually by holding Power + Volume Up together while off) and execute a Wipe Data / Factory Reset . To help tailor any troubleshooting further, let me know:
: Infinix has committed to providing two major Android OS upgrades and three years of security updates for this model. Key Firmware Versions and Updates Firmware INFINIX GT 20 Pro
Download the verified Infinix GT 20 Pro X6871 Flash File from trusted repositories (such as official customer care dumps or reputable sources like PureFlashFile or HardReset.info databases ). Boot the phone into stock recovery mode (usually
Hold down the Power button and press Volume Up once to reveal the hidden Android Recovery text menu. Select Wipe data/factory reset to clear conflicting cache structures, then boot the device normally. If youg., European, Asian, or Global variant). Hold down the Power button and press Volume
Official (ensure it contains a valid scatter file map or boot images). Latest MediaTek USB VCOM Drivers .