Tested on Note3 SM-n900 and S4 i337M

1. Root your device first
2. Install root explorer.apk on phone
3. Open root explorer and go to efs folder(dont forget to mount as R/W)
4-Delete efs folder(try again if say error)
5-press power button to turn off
6-use repair imei or unlock With other box(asansam not supported this model)

DONT FORGET THIS IS A TEST SOLUTION