Alienware 15 r3 corrupted bios after ctrl+esc recover

Hi, I was updating to the latest bios by downloading the setup and run it, I updated from 1.7.0 to 1.8.0 succesfully but my fans were working slower now and the laptop was getting hotter. I decided to revert the bios back using the recovery method ctrl+esc, succesfully went into bios, selected recover, it run some progress bars last one being flashing, it restarted...and entered into a restarting loop without showing anything until it started to bleep 2 reds 1 blue which means cpu issues as far as I researched. As far as I understand the bios got corrupted and it's not recoqnizing the cpu anymore. I did a power discharge by removing the batery cable and holding the power button with no result. I haven't reset the cmos battery as I have to remove a lot of stuff to get there. I've seen a possible fix in a post here but the link provided there ain't working. I would open a ticket with Dell as I think I litterally have 1 more month of warranty but I am now in my home country and last time I spoke with a representetive via e-mails about battery discharging when gaming he suggested that if I were to send it to them, I must be in Uk. I also saw that in 1.8.0 bios the Express charge option could only be selected or Auto but no off and I thought that reverting might manage to make the off selection available and that my fans would have run more faster. I understand there is an option to flash the bios from an stick but I don't know if it will boot from it as my laptop is now in a state of confusion about whatever is inside so detecting a bootable usb drive think it's his last desire now.I feel very bad and I feel like I killed my laptop, I will try tommorow after school to find more info about the bootable usb and to reset the cmos . I am not a wealthy individual and gaming was my only fun time. Sorry for the long post and any help would be kindly appreciated