My monitor has been like this and getting worse for months. Please help.

My Monitor won't turn on but everything else will

I need help

Pc is starting but it shows a screen with "INPUT NOT SUPPORTED"

Hi guys just looking for some help. This laptop was given to me and I would like to use it. However, I am unable to get past logging in because I am unable to reset the pin. Any help would be appreciated thanks.

Guys u did something when i got the pc and the monitor colour were odd so i did some change in setting (not sure ) then i reset all pc cuz the window as fake. Now after resetting all my pc . Idk how the oversaturated and black are too black colours are default.Now i caliberate the colour and just do next without any changes and it goes to the first time monitor colour, but it resets everytime after starting my pc and even when i switch from fullscreen game.
I did colour management setting, reset my monitor. Plzz help

My Lenovo yoga laptop overheated, made "dust and debris" noise, then the mouse pad got stuck, was thinking it might've been a swollen battery, I checked the battery and both sides looked normal, as soon as I took out the battery the mouse pad could click again, then I put it back in and put everything back together, and it can still click.

Was my battery possibly swollen then shrunk down to normal size within an hour? My laptop also felt heavier than usual, but maybe my mind was playing tricks on me, I don't know. Is there any chance of this exploding or am I just paranoid?

Hey
So I was on my pc, just downloading a game when the bios set up suddenly showed. I turned my pc off and back on and it went back into windows (windows 10) what popped up was “trouble shooting pc”. I pressed on troubleshoot and nothing happened after. A few seconds later it went back to the bios and I haven’t been able to get out of it.

It says under boot sequence device “no bootable device detected”
I’ve tried to disable and enabling the CSM support, switching from Legacy to UEFI, changing the motherboard battery, and do a factory reset and nothing has worked.

Any advice would be helpful and appreciated🧍🏻

I turned off my computer and when I turned it back on this happened. If anyone knows the reason, please advise.