Retrieving IMEI and service REDGood day.
I have a Samsumg Galaxy SII GT I9100.
It was working with Movistar Argentina and had the version of Android 4.1.2.
What rootie and installed on Android version 4.4.2 KitKat Resurrection_Remix_KK_v5.1.15.
We wanted to free any telephone operator.
The problem that I found is that the IMEI is invalid, unknown Base Band Version, does not recognize the SIM contacts.
I tried with several app as Galaxy_unlock, Galaxy_repair but I had no luck.
I have also tested with a Hex editor to change the offset and neither worked.
I think I have a backup of the EFS folder but when copying to root the phone does nothing. (Maybe not the right Backup).
In case you have no backup of the EFS folder you could do?
As I can leave the phone released for any Operator Argentina without a Box or Chimera Tools?
I hope you can help me.
Thank You.