G2 not holding service w/ vzw sim
So I just got the g2 and having problems with network.
Phone was flashed to frawg or ntelos. Or something.
I put my SIM in and nothing happened.
I put in the vzwinternet apn and nothing happened.
Finally I got 4g after switching phone from global to gsm, but the phone then prompted me to switch to global. So I hit okay and got 4g.
Sent myself some test text messages and they send fine.
After about 3 minutes my phone is back to 3g and won't send texts.
Did the gsm to global and it it's working fine again.
5 minutes later back to 3g with no service.
Currently I have it to lte/cdma. And it is displaying 4g.
Are there any recommendations to what I should do?