cannot detect signal on my device

i have moto g5s plus (xt1804) its specification are 4GB - 64 GB. I had some issues with charging my device my device was out of warranty so got it repaired from my friend’s shop but after that i have stooped receiving network when i try to call someone it say radio Off turn off airplane mode to make calls but the thing is that my airplane mode is off then how can i turn it off again tried every possible things remove shorting + flashing Firmware from lenovo that also did not workout for me