No Brightness

[AJES]

So I Decided To Come Back To My Ol Macbook Pro Model A1398 Whose Brightness doesnt work Bit Of Backstory To Describe My Problems
I Decided To Install Ubuntu On It With An Ext Hard Drive Then To Sell The Int Hard Drive Someone Bought The Int Hard Drive And Then I Proceded To Install Ubuntu On It Mid Install It Froze It Was Plugged In To Confirm The Laptop Was Operational I Decided To Unplug It The Brightness Went Down So Then I Forced Shutdown The Laptop The Second I Went To Turn It Again The BIOS Was On Minimum Brightness Basically No bACKLIGHT cUZ Macbooks Turn Off Their Backlight At Minimuum Brightness But Its In The BIOS Screen And I Have No Way To Get Back To Ubuntu Or Even Select The Boot Media Any Recomendations
(Sorry For Bad Grammar And Low Quality Pics The Pics Were Intentional To Protect My Privacy)

 

[MacCheetah3]

Have you done an SMC reset?

How and When to Reset Your Mac's SMC

Resetting a Mac's System Management Controller can solve common problems. See the entire list, and how to perform the reset.

www.lifewire.com

…And NVRAM/PRAM clear:

Fix Common Mac Problems With a Simple PRAM or NVRAM Reset

Resetting a Mac's PRAM or NVRAM can fix many Mac problems. Find out how to reset the RAM, and see a list of problems that resetting the PRAM can fix.

www.lifewire.com

 

[AJES]

Have you done an SMC reset?

How and When to Reset Your Mac's SMC

Resetting a Mac's System Management Controller can solve common problems. See the entire list, and how to perform the reset.

www.lifewire.com

…And NVRAM/PRAM clear:

Fix Common Mac Problems With a Simple PRAM or NVRAM Reset

Resetting a Mac's PRAM or NVRAM can fix many Mac problems. Find out how to reset the RAM, and see a list of problems that resetting the PRAM can fix.

www.lifewire.com

I gave it a try the smc you I'm not sure if I did it correctly the nvram and pram reset I'm sure it did work cuz it rebooted on its own like the article said got no results tho was expecting at least a bios screen btw I think I should mention that the way I had keyboard brightness is that I installed zorin os not Ubuntu to see if the MacBook pro was still operational but the keyboard doesn't work I tested that by pressing F5 F6 to change the keyboard brightness it did nothing

 

[AJES]

I gave it a try the smc you I'm not sure if I did it correctly the nvram and pram reset I'm sure it did work cuz it rebooted on its own like the article said got no results tho was expecting at least a bios screen btw I think I should mention that the way I had keyboard brightness is that I installed zorin os not Ubuntu to see if the MacBook pro was still operational but the keyboard doesn't work I tested that by pressing F5 F6 to change the keyboard brightness it did nothing

I'm expecting it to be for the OS cuz it did the ram reset correctly