My goal is to install Polish Language from here:
https://github.com/AthameBook/kindle...pl-install.bin
But after runing MRI got message "Package script failed (1) moving on ....

"
So thought to unjailbreake, downgrade to 5.8.5.0.2, jailbreak and install that source
https://github.com/AthameBook/kindle...-5.8.5.0.2.bin
edit
Problem solved after running updated bin file thx