Did you tried with a new PSU ? As it could be due to power problem, and first idea is about the PSU that often fail (becomes weaker) after some months/years of use. If you have anything connected to the USB Ports and smartcard inserted, try to remove all as well.

Admin

Originally Posted By: Pierce
My DM520 is doing this now. It was doing it before but very rarely. Now it is doing it more frequently. Do you know how to solve it technically?
_________________________