Kindle 90C6 no KUAL and should I update?

Hello!

I got a Kindle 90C6 (KT2/Basic) from a thrift shop today running firmware 5.9.6.1.

I followed this guide

https://www.mobileread.com/forums/sh...d.php?t=267541

But KUAL does not show up when placed in the documents folder.

Should I try again with this guide after a factory reset?

https://wiki.mobileread.com/wiki/5_x_Jailbreak

And after I get all this done, should I let it update with the newest FW?

EDIT: running ;log mrpi in the search bar shows the "Hush little baby..." message, so my JB was somewhat successful

Plus I still have root unlocked

Edit again: Got it! Ran the bin in the mrpackages

But my question about updating still stands, should I?