So, i have a big problem with my Galaxy s3. I dont know what happened, but at one time was home and your battery has ended. So I went to charge the battery and for my surprise, when I switch on the phone, it could not make calls.
I took it for Technical Service to solve the problem, but I got the information that they could not fix, because the telephone broke.
Dissatisfied, I came home and tried to fix it, and found that the IMEI listed as "null / null". I searched on various websites that could do to fix it. I installed the original 4.3 version of the S3, I ROOT your phone, tried to repair the various ways that the EFS folder could be corrupted, but i just get a generic IMEI.
I just want to know if I have any alternative to put again on phone my unique IMEI, and that can make calls again.
Please, help me with that.