: The .pac file being used does not match the exact hardware revision of the device.
Uncheck the options related to or Restore NV . This bypasses the verification check that often triggers the error. Use a Different Version of the Tool spd flash tool bkf nv error
, baseband configuration, Wi-Fi/Bluetooth MAC addresses, and network calibration data. Wi-Fi/Bluetooth MAC addresses
Reinstall the . A failure in the _W (Write) phase is often a symptom of the connection dropping when the tool attempts to access secure partitions. Verify Firmware Source spd flash tool bkf nv error
Before flashing any MediaTek device, always perform a "Read Back" of the entire NVRAM region (address 0x[Your NVRAM Start] to size 0x500000 ). This 5MB backup can save your phone if you see the BKF NV Error.