Lenovo idepad 2500 black screen fix?

Hi,

Does it still show the Lenovo splash screen when you turn it on? Here are some troubleshooting steps that may help in solving the issue.
- Start by doing a hard reset, remove the battery (if not built in) and AC adapter then press and hold the power button for 20 seconds then test it if it would boot up normally.
- If it doesn't work do connect an external monitor and see if you'll get any display from it because if you do that means it's the problem with the built in display.
- You may need to reseat the ribbon cable that connects the display to the motherboard.
- Next to try is to reseat the RAM, remove them all for couple of seconds then put them back in making sure that everything is seated properly into each slot.
- Also do test your AC adapter if it's supplying enough voltage to power the laptop or try another AC adapter that has the same voltage to power the laptop.
- If all these will not work the problem lies inside the motherboard and if it's still under the factory warranty do contact Lenovo for a repair.