Using the wrong flashing mode (like choosing "Format All + Download" in SP Flash Tool, which wipes critical device-specific data like the NVRAM/IMEI).
Hold both buttons and connect the phone to the computer via USB.
While holding the buttons, connect the phone to your PC. The tool should confirm that authentication was successfully bypassed. 3. Flash the Firmware SP Flash Tool "Scatter-loading File" Select the MT6771_Android_scatter.txt file from your extracted firmware folder. Important: Uncheck the opporeserve2 boxes to avoid further boot issues. Set the mode to "Download Only" (never use "Firmware Upgrade" for unbricking). and wait 5–10 minutes for the progress bar to finish. 4. Final Setup
Before beginning the fix, you need to prepare your workstation.
Using the wrong flashing mode (like choosing "Format All + Download" in SP Flash Tool, which wipes critical device-specific data like the NVRAM/IMEI).
Hold both buttons and connect the phone to the computer via USB.
While holding the buttons, connect the phone to your PC. The tool should confirm that authentication was successfully bypassed. 3. Flash the Firmware SP Flash Tool "Scatter-loading File" Select the MT6771_Android_scatter.txt file from your extracted firmware folder. Important: Uncheck the opporeserve2 boxes to avoid further boot issues. Set the mode to "Download Only" (never use "Firmware Upgrade" for unbricking). and wait 5–10 minutes for the progress bar to finish. 4. Final Setup
Before beginning the fix, you need to prepare your workstation.