Select any folder where you would like to save the backup file and click on save. Click on Add and double-click on the created file.Open the SP Flash Tool on your PC > Select the Scatter File for your device.Now, note down the values of ‘physical_start_addr:’ and the ‘partition_size:’.Open your Scatter File and search for NVRAM.Make sure to back up the listed partitions mentioned above. Once the restoration process is completed, you should take a backup of the restored IMEI/Baseband/NVRAM, etc for future reference. Image Credit: XDA How to Take a Backup of IMEI/ NVRAM via SP Flash Tool Description: This partition stores variable data of SIM/RADIO/MODEM/BASEBAND settings and info..Description: This partitions stores persistent data of default structure for NVRAM/RADIO/MODEM/BASEBAND..Like Google account and Mi Account/Mi Cloud. Description: This partition stores persistent data for factory reset protection.Like IMEI, WiFi MAC, Bluetooth MAC, calibration data, and others. Description: This partition stores persistent data of secure and identifying info for your device.Description: This partition stores variable data of secure and identifying info for your device.Description: This partition stores variable configs of NVDATA and NVRAM..
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