As we know On N9005 (qualcomm) IMEI number no more stored on EFS partition so no meaning to make backup of only efs.img
Thanks to @lyriquidperfection for information about IMEI stored on ModemST1 and ModemST2 partition, basis on this information here is simple tool to make backup of complete IMEI (efs.img.ext4 + nvrebuild1.bin and nvrebuild2.bin)
As we know sometimes we do have multiple device and multiple backup and that making us confuse which backup is for which device, also it difficult to guess when exactly we made particular backup. to overcome all these issue I have made some change in script and new version will make backup in folder name MyEFS_MM-dd-yyyy_hh.mm_Device IMEI So you can keep multiple backup.
Also it will copy build prop file along with backup, so that will give complete information about your ROM when you made backup.
- To backup long press EFS backup option icon, it will backup all three required partition like efs.img.ext4,nvrebuild1.bin and nvrebuild2.bin. Also you will find build.prop file, which is just to get information about ROM when backup was created.
- To restore simply copy all three backup files efs.img.ext4, nvrebuild1.bin and nvrebuild2.bin to root directory of Int SD card and then long press Restore option icon.
Read this for more about EFS
V1.0 Initial version
V1.1 Backup folder name changed, now it will be MyEFS_MM-dd-yyyy_hh.mm_Your device IMEI. So there will be no more confusion about which backup is for which device.
Play store - Purchase from play store to support development
IMEI Tool N9005 Free 1.1 - Download for free for XDA users.