In the case that the phone freezes (or get very slow ) and you want to restart, much like you would on a PC, try the following procedure.
For now, we have tried the HTC Desire HD, but it may work on other models, try and answer.
Key combination is Power + mute button + trackpad.
With this combination you do not have to remove the battery and return it to reboot the phone. Keep in mind that this is not a regular process of launching and recovering the system, but only so-called "hard" reset which should be used only in situations when yourphone is not responding to other commands.
For now, we have tried the HTC Desire HD, but it may work on other models, try and answer.
Key combination is Power + mute button + trackpad.
With this combination you do not have to remove the battery and return it to reboot the phone. Keep in mind that this is not a regular process of launching and recovering the system, but only so-called "hard" reset which should be used only in situations when yourphone is not responding to other commands.