Backup IMEI NVRAM Data
Step 1: Download and install Android ADB Driver on your computer.
Step 2: Now, enable USB Debugging on your Android Device. To enable USB debugging: Open Settings > About Phone > Built Number (Tap on it for 5-8 times).
Now, Again go to the Settings > Developer Option > USB Debugging > Tick to Enable.
Step 3: Now, connect your Android Device to the computer.
Step 4: Download and extract MTK Droid Tools on your computer.
Step 5: After extracting, you will be able to see the following files.
Step 6: Now, Open MTKDroidTools.exe on your computer and wait till it loads your android device information.
Step 7: Now, in MTK Droid Tools, Click on the Root button to get root permission on your android device.
Step 8: Now, Click on IMEI/NVRAM button.
Step 9: Now, you will be able to see a popup window, in that click on the Backup button.
Step 10: Now, MTK Droid Tools will backup your IMEI/NVRAM database to the BackupNVRAM folder (exist in the MTKdroidTool folder.
Restore IMEI NVRAM Data
Step 1: Enable USB Debugging on your Android Device. To enable USB debugging: Open Settings > About Phone > Built Number (Tap on it for 5-8 times).
Now, Again go to the Settings > Developer Option > USB Debugging > Tick to Enable.
Step 2: Connect your Android Device to the computer.
Step 3: Open MTKDroidTools.exe on your computer and wait till it loads your android device information.
Step 4: Now, in MTK Droid Tools, Click on the Root button to get root permission on your android device.
Step 5: Now, Click on IMEI/NVRAM button.
Step 6: Now, click on the Restore button then it will ask you for a .tar or .bin file.
Step 7: Locate the data from Backup NVRAM folder and your IMEI NVRAM data will be restored instantly.