Read the threads linked in this post:
https://www.mobileread.com/forums/sho....php?p=2053291
If you need details, you can click the "successful debricking report" links in the first post of the "simple debricking" thread, and read the
posts leading up to those successful debricking sessions.
All the tools and information you need are in the links in the above-linked post. Good luck, and please read those threads before asking questions. Thanks.