Create a :

These are structural dictionaries required by service utilities to communicate with the modem software. Without a matching database database file, flashing utilities cannot translate or map individual IMEI fields back to the hardware.

Note that root is not generally required for the MauiMETA method, but it may be needed if you are manually pulling /etc/mddb files.

In a device powered by the MT6765 chipset, NVRAM and database files are critical for its operation. NVRAM stores essential configuration and calibration data, while database files manage and store a wide range of data.

✅ Always all four partitions before any modification.

Warning: Never flash an NVRAM backup or use DB files from a different device model, even if it uses the same MT6765 processor. Doing so can permanently hard-brick the device or permanently destroy your original network calibration data. 3. How to Repack MT6765 NVRAM and Firmware Images

The safest place to get these files is directly from the official stock ROM (Scatter-based firmware) of your device: