Before Google hardened FRP in Android 8.0 (Oreo) and above, MTK GSM LABORATORY V1.0 could strip the FRP signature from the persistent partition in seconds. It accomplishes this without requiring USB debugging or a custom recovery.
Most operations (especially FRP and Bootloader unlocking) will wipe user data. Always back up what you can. MTK GSM LABORATORY V1.0
Testing the MMI (Man-Machine Interface) and various hardware components without a full system boot. Before Google hardened FRP in Android 8