Sorry about posting this again, I think my last post confused people because I mad a mistake with the question.
I decided I would flash TWRP on my Kindle so I did. Except after flashing it, my kindle booted up and showed the kindle fire logo for about 1 second then the screen turned completely red.
IIput it into fastboot mode using a fastboot cable and the traffic lights popped up but the computer couldn't find my device! Not only that, but it can't charge!
Please help.
Read more: How to UNBRICK my Kindle fire 2nd Gen (not hd) that can't be seen by a computer?