Yes I did .. I flashed the 5.12.502.2 AT&T firmware and the when I rebooted it went to QHSUSB_DLOAD ...scared the crap out of me and then I saw you posted the Fix and it worked !!!
You mean you flashboot flash zip firmware.zip? I tried that with my SUU as well but it failed. Probably cos the bootloader is locked. Could probably try and unlock it and try again but I think I'll just leave it to HTC. I hope that it isn't too costly.
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