Yep, then it seems the pinouts on the USB connector have been damaged. Bummer.
On the plus side consider this: AT&T will probably still give you device exchange without charging you a fee. First, they mostly don't care about users modding their phones. Secondly there are so many exchange requests coming into them for the One, that all the defective units will just be sent back to HTC directly by AT&T and at that point HTC is not going to bother to go back to AT&T and say listen this list of devices were modified. If they did, that would create a backlog on work for AT&T to match the records to owners and then contacting them and trying to prove that the user did this so far removed from the exchange that it doesn't make business sense to them.
I have seen AT&T users report that they have sent in devices that were extremely modified and obvious, but AT&T proceeded with the exchange anyway because they would rather keep you as a happy customer than spending time trying to prove what you did was the only cause of the failure. Users have even sent back total bricks that they created by doing something stupid and AT&T still replaced the device without question.
When you modded the phone, that basically ended AT&T's obligation to help you with any service/software related issues, but the modding did not void the hardware warranty and it seems your device has a hardware issue that was unlikely caused by the software modifications.
The key in your case would be to do the defective device exchange via phone/mail and not via the walk in device service center.
If you don't want to do this because of the possible risk of flagging by them, then I may be willing to buy your bricked device if you are not going to do anything with it. PM if interested.
Thanks for taking the time. And for the offer. I will weigh my options and possibly be pming you about that.
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HTC ONE : rooted : Unlocked : S-off
HTC First : wife's : unlocked
Nabi 2 : spoiled kids
Nabi JR : spoiled kids
iPad2 : jailbroken
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