[moah]

Originally Posted by knc1

What?
By your info block, neither firmware 5.7.2 nor the jb of firmware 5.6.5 is for your kindle model (PW-1).

check the first few characters of your serial number against this chart:
https://wiki.mobileread.com/wiki/Kindle_Serial_Numbers

Sorry,I not expressed myself correctly. I have Kindle PaperWhite 2 in version 5.72. I wanted to downgrade to 5.6.5. =/