Oppo A5 2020 Twrp |work| ●

This is almost always a driver issue. Open Windows Device Manager while your phone is connected in fastboot mode. Look for a yellow warning triangle. Right-click it, choose "Update Driver," and manually select the Android Bootloader Interface driver.

This happens if the vbmeta command was skipped or failed. Reboot to fastboot mode and re-run the fastboot --disable-verity... command. oppo a5 2020 twrp

Test if your computer successfully recognizes the device in its bootloader state by typing: fastboot devices Use code with caution. This is almost always a driver issue

Your phone screen will change to show fastboot status text. Confirm connection stability with: fastboot devices Use code with caution. choose "Update Driver