Jailbreak successfully on my PW3 G090 G105 xxxx xxxx
I have blocked kindle internet access in my router, renamed my Win 7 PC to "a" and used a small webserver (tinyserver) to host the jb files.
After a kindle hard reset I´ve copied the file "jb" to kindle root and used the kindle browser to open "a" and followed the instructions.
Last but not least I´ve installed the developer key:
https://www.mobileread.com/forums/sho...postcount=1597
Thank you all.