The first thing you could try before all that or after, preferably first, is to take out the battery and try plugging the charger in the laptop to supply in a more direct power. Then turn it on a see what happens.
Can you get to BIOS? Anyways.
- I am going to assume you have Windows 10. After turning on the laptop, keep pressing “F8”
- This will get to “Safe Mode” afterwards, go to “Troubleshoot”—- if you can get to Safe Mode thats a great thing to know. So tell me.
- After that go to “Reset your PC”
- Then press “Keep my files”
Doing so should reinstall Windows and hopefully fix your issue as I would primarily want to assume some OS hdd failure as its the easiest to start with. Especially since its just a black screen afterwards.
You could also try plugging the laptop to an external monitor and see if it boots. Once its hooked up to an external monitor.
Start up your laptop, and press and hold the function key which is the letters "fn" inside a box.
Press and hold this with the corresponding F# key that has the monitor symbol, which may look like this " lOl " or some variation of that.
Some laptops vary. Could be FN + F4 or F5. Seems to depend.
Try all this and tell me what happens.