Specifically named for the BB2 / Pop 2 chipset (usually MT6580).
Power off the phone. Hold the Volume Down or Volume Up button (depending on the specific sub-model) and plug in the USB cable.
Click on the "Choose" button next to the Authentication File path in the tool. Select the auth_sv5.auth (or similar) file you downloaded. tecno bb2 auth file new
These allow your Windows PC to recognize the phone in "Preloader" mode.
Flashing with an Auth file usually wipes all user data. Specifically named for the BB2 / Pop 2
Before attempting to use the Tecno BB2 Auth file, ensure you have the following tools prepared:
Use the latest version (v5.xx or higher) for better compatibility. Click on the "Choose" button next to the
Open SP Flash Tool and select the "Scatter-loading" file from your firmware folder.
If the phone doesn't turn on, the Auth file helps the PC communicate with the chipset.