Sadly it looks like the machine needs repairs. It sounds like you can't get to the bios either.
My Samsung Q320 keyboard stopped working after i tried to install windows vista, the installation was taking hours and i aborted it. Now i cannot attempt to reinstall it again as im unable to press any key to boot from cd and also unable to enter the setup.
I tried quite a few things like taking out the battery and waiting for couple minutes then replaced it but nothing changed. I removed the memory, the hardrive and even the mini card but that didnt work neither.
Make/Model: Samsung Q320
Operating system: Was Windows 7 then tried to install vista;
Processor: Intel Core 2 duo
(Reason for Installing Vista)
I fell asleep with the laptop on the bed and accidentally kicked it off in the middle of the night. The hdd stopped working so i had to replace it. I didnt have my Windows 7 cd so i had to use my old vista cd to reinstall the OS on the new hdd.