May I suggest if u have another sim card, which u could borrow from someone, to see if ur phone is receiving any network?
If it is receiving using someone's sim card, most likely is ur sim card that is faulty.
If u are also not receiving, I would suggest using the Smart Tutor to screen share ur device screen to the technician and he/she will be able to navigate thru ur phone to check the settings.
If he/she is still unable to resolve the issue, then consider visiting the service centre, since u will need to spend some time to make the trip. Hopefully, ur device is still under warranty, right? 👍
