I have just been on youtube and there is a german video of someone jtagging a DM500. Although my german is non existant I could not help noticing that the power to the DM500 was off and that was the reason that they were jtagging it. Does anyone know what effect the time bomb has on the DM500. I have 2 x DM500 which were working fine and now are not providing any signal but they have a green light on. Does anyone know if they need jtagging of flashing. I have flashed them a number of times via the serial port but the TV is still not receiving any signal. I really do not want to attempt Jtagging until I am sure flashing will not work. I am using dreamup and a number of images and although it says is flashed successfully nothing changes.