: Install the latest MediaTek (MTK) USB Drivers on your PC. Battery : Ensure your device has at least 50% charge .

Download File VIVO Y93 Y91 Y91i Y91C DA & auth ... - Up4ever

: Flashing will wipe all internal data; perform a full backup if possible.

: Use a modified version of SP Flash Tool or professional boxes like NCK Box or Miracle Box . 3. How to Use Auth Files in SP Flash Tool