I have a Kindle Fire HD (tate) that I bricked by modding /system/app/Framework-Res.apk and I am trying to unbrick it. How can I connect it to ADB? It won't show up in Ubuntu or Windows. It is in a bootloop with a red triangle and it prompts to system restore (doesn't work). It doesn't have TWRP because I used iRoot. It looks similar to this image.
Is this possible? If so, then how?