I have Redmi 5a (android 8.1.0,MIUI version 10.3.2.0) which suddenly started showing no network.I was streaming youtube and suddenly both networks(dual sim) have been lost,i tried turning on and off airplane mode,then network appears for few minute and then vanished. I tried software update, factory Reset but nothing is working. My sim card is working properly in another's phone. What should i do now ? Is their any software available which can help me to figure out what is wrong with my phone?