A file explorer window will open. Select the donor or backup ( nvram.img or nvram.bin ) you downloaded.
: Flashing someone else's NVRAM file will give you their IMEI. It is often illegal to change an IMEI; ensure you restore your original numbers using the manufacturer's labels.
The phone recognizes the SIM card but cannot register on any cellular network.
Allows your Windows PC to detect the device in brom or preloader mode.
adb shell su dd if=/dev/block/by-name/nvram of=/sdcard/nvram_backup.bin exit adb pull /sdcard/nvram_backup.bin mt6768 nvram file
If the NVRAM partition is locked, you may need to use MTK Auth Bypass Tool to allow the flash.
To safeguard your device against future partition failures, always pull a native backup when your network is running perfectly. Using SP Flash Tool (Readback Method)
Having a valid and correctly configured MT6768 NVRAM file is crucial for several reasons:
Hardcoded identification for Wi-Fi and Bluetooth modules. A file explorer window will open
Use SP Flash Tool’s "Readback" feature to create a personal backup of your unique NVRAM partition before flashing custom ROMs or rooting.
The Complete Guide to MT6768 NVRAM Files: Fixing Invalid IMEI and Baseband Issues
If you do not want to flash an entire nvram.img image, you can use specialized tools to repair the IMEI numbers directly into the existing, corrupted NVRAM.
Copy and paste those hex values directly into the Readback block fields. It is often illegal to change an IMEI;
MTK Client is a powerful, modern command-line GUI tool built specifically for MediaTek chipsets. Download and launch . Power off the phone and connect it to the computer. Navigate to the Partition Manager tab. Select the nvram (and optionally nvdata ) partition.
: A backup image of that partition used for restoration.
A donor file specific to your phone model (or a backup you made prior to the issue). Step-by-Step Guide to Restoring MT6768 NVRAM