[Q] - ATT Note i717 4G/LTE data works, call+SMS rarely works
On my AT&T Note (Stock firmware), the mobile data works just fine.
However, I have had great difficulty making phone calls (usually we have trouble hearing eachother), and SMS messages likewise rarely work.
The micro-usb charging port was recently replaced (the connector had failed), and the problems began around that time. I have taken the phone apart again, and checked that the part on top of the charging port (which I gather contains the antennas) is securely attached, and seems to be making contact with the contacts on the piece containing the charging port.
I did ensure that I had the charging port board made for the i717 (with 3 contacts), not the international version (with two)
Settings -> About Phone
Android version 4.0.4 (the update was panned on forums, people complained about performance, so we didn't upgrade)
Baseband Version: I717UCLF6
Kernel Version: 3.0.8
Build Number: IMM76D UCLF6
What steps should I take to further debug and repair this?
Much thanks in advance!