Hello there, i have an old acer aspire 5536, and when i try to boot it, the led lights come on and it says that it is charging, but the screen stays blank. The fan spins for about 5 seconds and then just stops. If i click caps lock, then the caps lock indicator light at the top of the laptop doesnt respond. Also the dvd drive does work if i try to put a disk in it. I have tried loads of things to get it to work, like pressing and holding the power button for ages, flashing the bios (although when i did this i didnt get a .fd file with the zip but i just put it on my usb stick, press and held Fn+Esc but no luck) and i even tried bending it around the keyboard. (https://www.youtube.com/watch?v=-KzJngsujk0 apparently it works but not for me) i also read that this is a type of laptop that requires the CMOS battery in order to boot, so i dissassembled it and replaced it with another one but that also didnt work. Whilst it was dissassembled i cleaned it all out with a brush, reassembled it but no change. Does anyone have any ideas? Thanks in advance 