My tablet is Grand Touch G705, new one bought from Saudi Arabia and now I am in India. It is not detecting SIM card. How can solve this?
I couldn't find the specs of your tablet.You can check to see whether you are inserting right kind of SIM or not by seeing whether the tablet supports GSM or CDMA SIM.
how many different SIM card you tried, perhaps sim reader is broken, you can try to hard reset or install updates and retry SIM.