Use APKPure App
Get imeiRepairTool old version APK for Android
Sie können ganz einfach ein Backup Ihrer efs (wie IMEI, mac-Adresse, Seriennummer etc.) Ordner.
This program useful for backup your efs folder.
When your imei show Null/Null or imei starting 0049 you can easily repair your imei.
Our program working every Samsung Galaxy devices.(Tested).
This program need some root permissions.
We are not responsible any problems.