here is the response i got from HTC:
Unfortunately, the only thing left that I can advise to do would be the factory data reset of the device. Because this will erase all personal data from your device and restore the operating system to a "Like New" state
Unfortunately, the only thing left that I can advise to do would be the factory data reset of the device. Because this will erase all personal data from your device and restore the operating system to a "Like New" state