If anyone could help, i'd really appreciate it. I was successfully able to root my kindle, but after rooting i tried installing TWRP via adb it never came back after it's final reboot. I have a fastboot cable and even with it, the kindle won't turn on, doesn't show up in devices on either linux or windows. Does anyone have any ideas how to recover it? I'm thinking that the bootloader is somehow missing or corrupt in a way that even fastboot doesn't work.
Also, if it is not recoverable in it's current state, is there somewhere that i can get a replacement system board to get it back up and running. I'm very technically savvy and am completely comfortable changing system boards, i'm just not familiar with android bootloaders enough to know how to fix this.