Microsoft Lumia 640 XL is having a network problem, how can I fix it?

[CK BhavsaR]

microsoft lumia 640 xl have network problem

some times i can't recieve any phone call
and i can't disconnect call

4 times repaired with nokia care
but can't find any solution

major problem with phone calls (repeatedly i trying to end call
but phoe call doesn't end for many hours)

 

[realwarder]

Re: microsoft lumia 640 xl have network problem

Try wiping with Device Recovery Tool. Save you photos first.

 

[Hemant Kumar11]

Re: microsoft lumia 640 xl have network problem

some times i can't recieve any phone call
and i can't disconnect call

4 times repaired with nokia care
but can't find any solution

major problem with phone calls (repeatedly i trying to end call
but phoe call doesn't end for many hours)

Has your problem been resolved cause i am also facing the Same problem.......