Last 2 year i am using A50 model i am facing display and fingerprint issue. Display colour goes light grey its only work in high brightness and fingerprint sensor not working . No physical damage no liquid damage. I already tried factory reset. Any ...

I am facing network issue in all sim on my galaxy A50. Any solution about this problem? I already factory reset my phone at service center but its work only 2 3 months after that same problem..any one have solution ?

My old galaxy grand prime showing LTE only option but its not working. I insert jio sim but its not working..this model support 4g ? If yes then any solution for me please.