If you have searched for the Tecno Bb2 Auth File for days with no luck, here are three alternatives:
The authentication (Auth) file is a specialized security file required by flashing tools to verify the device's identity before performing deep-level operations. Without this file, standard tools will often return an "Authentication Error" or "Secure Boot" error when attempting to modify the firmware. What is the Tecno BB2 Auth File? Tecno Bb2 Auth File
If a user forgets their Google Account details after a hard reset, the device stays locked at the "Verify your account" screen. The Auth file is used in conjunction with an FRP scatter file to format the FRP partition. If you have searched for the Tecno Bb2
Load the Android_scatter.txt file from your firmware folder. Tecno Bb2 Auth File