: Often used for more persistent "Invalid IMEI" or "Unknown Baseband" issues. Version V3.0 (and newer) is a standard for writing IMEI to the NVRAM. SP Flash Tool
Ensure you selected the correct Database (DB) file matching your current Android version. An unmatched file will cause a communication mismatch. mtk imei v30
If you have a legitimate IMEI loss (e.g., after flashing a custom ROM or a corrupt firmware), do not search for "hacks." Do this instead: : Often used for more persistent "Invalid IMEI"