There’s a ROM update utility or RUU available on the HTC website. Download and run it if you have one of the following troubles with your HTC Touch Diamond:
• The screen becomes black if you turn on the camera while other applications are running on the phone.
• When playing a video, a portion of it is cut off.
• While listening to music via the speaker the sound turns off (and on but not always) after 10 minutes (you may also hear a buzzing sound).
• The phone is not able to receive MMS messages when in standby mode.
• The sound turns off and on from time to time when you launch music via the Music tab on TouchFLO 3D.
On updating the software all these troubles disappear.
The manufacturer warns that all data and device settings are deleted during the update process. Before running the RUU make sure that all applications are closed and the battery is half-charged at least. You must not use the device during the update: don’t press any buttons, make or receive calls or disconnect the phone from your PC.
