Laptop's LCD shows blank and got stuck on BIOS, any way to get out?

I'm using an Asus K55A-HI5121E, a few months ago a similar problem happened where my laptop's lcd started showing blank after I forgot to close it and it shut down on it's own (not sure if I kept the charger plugged in during that time)
I realized I could use a tv as a replacement for the lcd temporarily and I eventually took it to a repair shop and they couldn't fix it. So I tried fixing it on my own and found out I needed to open up the BIOS to get it to work and i just had to press restore to default and fix the settings to make it work again. A few weeks ago the same thing happened again but I just did what I did last time and got it fixed. Then today, it happened again, I had already plugged in my tv as a seconday monitor since I found it more convenient but this time, the BIOS launched on the tv and I had done restore default on BIOS and my tv became unusable through my hdmi and won't connect anymore and my laptop is essentially stuck in a BIOS loop where I can't leave because I don't have the vision to change the settings on "Launch CSM" and "Secure boot" so my laptop can leave BIOS.

Before all this happened, I installed a 4gb ram stick to my laptop a few days before the first time my lcd disabled.

I also know I'm still in BIOS since pressing F10 then enter seemingly restarts the LCD basically blinking the light.

So is there anything I can do to atleast allow my tv to connect again? I've tried removing and placing ths CMOS batery back on, restarting multiple times, leaving it closed for an hour, and even following a youtube tutorial to see where I have to go and copy their steps to get out of BIOS.

I tried my laptop with only the old ram and it remained the same

The new ram is a Crucial 4GB DDR3L - 1600 SODIMM 1.35V CL11

I'm gonna mention that my time zone is UTC +8 so I may not be able to respond for a while.

I just opened my laptop today, When I turned it on it didn't turn on it's LCD anymore. The fan is still running and the lights on the left of the laptop still turns on as well. I'll try to take it to the repair shop when I can to see if they can do anything about it, might take a while before then though.

From what I remember, it should be 8 years old at this point since it is a hand me down, some tiny bits of plastic keep breaking off the laptop itself so it's probably signaling it's time already. I think being able to use it would be with very convenient though so I'm looking for ways to prolong it further.

I removed it for more than 10 minutes
I did try unplugging the charger and battery for a while and discharging it.

I'll try leaving out the cmos battery for a day though

veeg said:

You probably can attach an external monitor to the laptop.

Click to expand...

When this first started I used a tv. The issue now is that, the tv doesn't show anything anymore after I used restore to default in the BIOS.
Although I may be misunderstanding something. I was using the HDMI to connect to the tv, does it make a difference if I use the other slots that are also used for external monitors?

Sorry got busy in the last few days, I did leave the CMOS battery out for more than a day but now it's only back to the blank screen bios, it just turns on the fan and the only thing I know I can do is press F10, left key then enter to presumable save and exit the bios.
Trying out the different slots will take a while since I do have to purchase or just borrow the cables from someone I know.

I'll try pressing f9 then f10? Or press f9, enter, f10, then enter?