I have a new Samsung Galaxy Note 2 for about 2 months. It has been working fine with my T-Mobile prepaid.
The problem started in the last few days, my Note 2 lost network connection/cell signal from time to time (no voice no data).
There was no signal bar, but a circle with a bar across it showed on the status bar area.
Sometimes reboot it several time and it came back (and sometimes I had to remove and reinstall
the battery and the sim card) and then it may work a few hours and the connection
was lost again (showing a circle with a cross bar). This is in the same location that has been working
fine for the last couple of months with this Note 2, but it happened everywhere in other locations. At the same locations, my wife's
Samsung Galaxy S2 with T-mobile worked just fine for the last few years.
I already tried everything i could and the problem persists. I'm an Android power user.
Some observations:
- when I had no cell signal, no data network, I was able to use wifi calling at home on my DSL. Does that ruled out SIM card problem?
- as soon as I turned off wifi, my Note 2 got no cell signal (while my wife's Galaxy S2 phone with T-mobile worked fine)
- Will moving to a new SIM card help?
I'm very desperate. Please help. Please. Please give me suggestions that I can try.
The Note 2 is running stock Jelly Bean 4.1.2. Nothing fancy.
Thank you very much.
mike