Originally Posted by g0kb3rk
I live in Turkey and purchased my N7100 from Germany which was JB 4.1.2 installed. My question is, does the CSC difference cause any problems? One of the reasons I'm asking this is my phone is sometimes having signal issues while the other phones are having full signal.
Sent from my GT-N7100 using Tapatalk 4
CSC is for some hidden settings etc etc like enabling some spefic feature like infinite scrolling..etc etc if ur having signal issue... I would suggest u could try using another SIM card or another SIM Card from different carrier and see signal level to know if its the carrier or SIM
If still issues try flashing another modem for your exact phone model. If modems for Turkey are there start with those. (You will need to be rooted to be able to continue from here)
However I must warn you u need to FULL Backup Your currrent ROM completely using a recovery like CWM Recovery or TWRP and Also backup ur EFS folder/Partition this is very important and I would suggest use aleast 2 or 3 different softwares to backup the EFS such as EFS Pro or WIN EFS BACKUP RESTORE and any others.. this is if u ever need to restore ur recovery and if the restore fails atleast u have another software to restore from .. this is because the EFS partitoin contains all of your important files for your phone to be recongnised in a network. if destroyed and without backup you may loose permanent celluler network connectivity this is where the IMEI is also stored.