A question about Samsung emmc back up

yassin2k

Hello, I have a Samsung sm-j400f with a damaged emmc I have a replacement but no access to backup files suchlike (efs cpefs m9kefs1-2-3 radio), couldn't find anything in the internet either but I found a 8GB dump so my question is will the 8gb dump have the back files or do I need to get them from another phone??
Any answers will be appreciated and thank you in advance

madgoeslim

yassin2k efs

EFS is an encrypted file system, valid for this device only. So other backup efs from other devices will be reset by SoC.
You can repair imei with samsung professional tool/box which has ability to patch imei certificate feature.

madgoeslim

yassin2k cpefs m9kefs1-2-3 radio

This is a unique partition supporting the EFS partition, usually containing certain calibrations and parameters required by the processor baseband. This partition is not obtained from the firmware, except for the baseband firmware.

yassin2k

Ok what about m9k

madgoeslim ok about m9kefs1-2-3 are they essential or they can be found in the firmware when I flash with Odin?

yassin2k

Apparently the dump I found on the internet was sufficient and luckily I had a backup of the efs It was the only IMG that I could back up ,the device booted and there was no need for iemi or efs repair