Prob in TV mobile of china

Hello,
Sir i did factory resetting by 1122 code but that just resets my touch screen resetting and nothing else.It has just 10 space for blue tooth devices to connect as every mobile have and they can be deleted from my devices list but here the prob is that its not deleting any way , It just restart the set when ever i try to delete any device from that list.I also forgot set model number . Is there any way that i can check its model number as printed on it has rubbed or removed any way.