Median PPC 250 not working

I turned on my pda and nothing, press power button nothing, remove batt nothing, tried to do a hard restart (about 50 times!) STILL NOTHING. I have charged the battery on the cradle, out of the PDA it charged,PDA still did not work..... i dont know what the problem is but it is not working at all, does anyone have any ideas as far as getting it to work, i tried to charge it in the cradle and the charge indicator does not even come on, I tried the same with the car charger still nothing. power button does not work, buttons on the bottom, side, allover nothing works.. once it did light up but screen was blank just like a weak torch. but nothing worked.
Any Ideas?

hello sorry to hear about you medion pcc250, but ive got one as well and mt 256 mem card is broke, and i need the software on it to put on to my new mem card (ididnt back up the original) do you have the files i need on your memecard, cos i cant get my sat nav working with out the original medion file that are on my broken card!

thanks.