no network coverage on debranded k790a

[wdixon]

I have a k790a that was debranded a few months ago. It was working fine until last week when I started to have trouble with coverage then it started showing "no network coverage" all the time and I haven't been able to get a signal since then. I haven't done anything to the phone's software since I thought I might screw it up more. It also hasn't been physically damaged in any way.

I was going to take it to a shop to have them look at it and I saw a closed thread here where someone helped fix a k790 with a similar problem. Does anyone have any suggestions on what I should do to try and fix my phone?

Thank you in advance.