dm500s wont flash

[capanord]

hi guys hope someone can help me
I have dream up and have previously flashed my box with success
however over the weekend my box died. no light on front etc I have tried cable with other boxes and its good
power up dream up and get the message ready to connect but when I flick power on dreambox I get nothing whatsoever? null modem cable etc all good
any help much appreciated
thanks

[anthmatthews]

Sounds like a problem with your box as opposed to cord or dream up, have you tried another power cable on box, you should get a light on front

[pob639]

I've had 2 black 500s clones do same to me over last month wonder if somethings going on ?????