Open both files in HxD. Scroll to offset 0x2000 – 0x5000. The first 16 bytes should be similar; if not, the downloaded file is for another phone.
NVRAM, or Non-Volatile Random Access Memory, is a type of memory that retains its data even when the power is turned off. Unlike volatile memory (such as RAM), NVRAM doesn't require a constant power supply to keep its data. This characteristic makes NVRAM extremely useful for storing configuration settings, calibration data, and other small pieces of information that are crucial for the device's operation.
In mobile devices, NVRAM is often used to store parameters related to wireless connectivity, such as Wi-Fi and Bluetooth MAC addresses, IMEI (International Mobile Equipment Identity) numbers, and other configuration settings. This data is essential for the device to communicate properly with cellular networks and other devices. nvram+database+file+mt6765+download+repack
| Command / Action | Expected Result |
|----------------|----------------|
| *#06# | Shows original IMEI(s) |
| adb shell cat /sys/class/net/wlan0/address | Matches original Wi‑Fi MAC |
| adb shell settings get global bluetooth_address | Original BT MAC |
| Radio signal (field test mode *#*#3646633#*#* → “RF Test”) | Valid RSSI, no “invalid cal” error |
The NVRAM database file (usually with .db or .bin extension) is a structured backup containing the default factory configuration for your phone’s radio and connectivity parameters. It is not your personal IMEI. Instead, it provides a clean template. Open both files in HxD
For the MT6765, the NVRAM database is tied to the exact firmware branch (e.g., Alps, K50, or generic Smartphone). If you restore an NVRAM database from a different model, you will face "baseband unknown" errors.
Even with the right database and repack, things go wrong. Here are the top 3 errors and fixes. Even with the right database and repack, things go wrong
⚠️ Do not perform a “Format All + Download” after this, or you’ll wipe the repacked NVRAM.
From your original backup:
nvram_unpack.py -i nvram0_backup.bin -o original_files/
Copy the following over:
To interact with the MT6765 chipset, you need a Scatter File (a text file defining the partition map) and a Download Agent (DA).