My 4G phone has a couple of problems. Although it passes all tests. When I dial a number (using Ting), it indicates that it is calling the number but can’t hear ringing and the call does not go through. I have checked the antenna wiring and it is good.
I don’t know if it is related, but I can’t update the phones firmware. The phone finds my network, accepts my password and It downloads the software for about 30 seconds and then says “error while downloading” and reverts to the old firmware version. I have tried a new sd card.
Any help much appreciated.