Make sure you are using the coplate version of KUAL from the snapshot thread here:
https://www.mobileread.com/forums/sh...d.php?t=225030
Copy the contents of MRPI to the root of your Kindle. Then copy the bin file from the KUAL package into the "mrpackages" folder. Now eject your Kindle. Type ";log mrpi" into the search bar in your Kindle and KUAL will begin installing.