SPD Flash Tool , a vital utility for servicing devices with Spreadtrum/Unisoc chipsets, often encounters the "BKF NV Error" during the flashing process.

Decoding the SPD Flash Tool BKF NV Error: Causes, Fixes, and Prevention

Fix 2: Change Flash Mode (Critical)

If none of these troubleshooting steps resolve the BKF NV Error, you might want to:

Symptoms of the SPd Flash Tool BKF NV Error

NV

Most engineers would expect a generic verify failed error. The inclusion of is interesting:

Fix #2: Use a Different Version of SPD Flash Tool

1. Charge the device to at least 50% battery charge.
2. Try flashing the device again.