I have recently purchased an A52s 5g phone. Everything was alright until last Wednesday. Unfortunately, from the last two days, it keeps showing "no SIM card inserted" and "not registered to network ". I use lycamobile (UK). Sometimes the connection comes back but most of the time it keeps showing those and makes me unable to make calls and use the internet.
How do I fix it now? Is there something wrong with my phone or the network provider and everybody else are also experiencing the same issue?
You may need to try get replacement sim from Lycamobile just to see if it improves. If it doesn't then it maybe something to do with the sim reader inside the phone. If it's a fault it should be covered under warranty though.