[Q] USB/Port Problem, Help!
I have been fighting this for days now and I can't figure out what is going on. I have an i337 32g ATT S4 and I'm on T-mobile. I already did the AWS mod and have 4glte working great. Did this back in May.
I now want to install the T-mobile rom to get full functioning but I can't get my phone to sync with Windows 7pro. I can't get keis to see the phone. Here is a more detailed breakdown. I have phoneutil.apk running. If I set UART to PDA and USB to RNDIS+DM+MODEM and the USB debugger off, windows will show the phone in device manager and I can see it mostly in QPST. It shows up as unknown phone, 0 ESN, 0's for the phone, etc but you can do a backup so it is at least talking in some form I think. Latest version of Kies will not recognize the phone, says unsupported device.
If I activate the USB debugger, the phone disappears from device manager and nothing can see or connect to it, although it does charge. If I take the USB developer switch back off, device manager and QPST can see it again (at least somewhat).
I've read a ton and can't find any help.
Thanks in advance.