Just thought I'd reboot this thread, since a similar thread got started recently! :
https://www.mobileread.com/forums/sh...d.php?t=289562
A quick recap/refresher:
I was unable to make new(user-defined) "search bar" commands work, even after a FW restart, in my jailbroken PW3(G090G1, FW 5.7.4, factory image) and KT3(G000KA, FW 5.8.0, factory image), though I could do it on my PW1(B02416, FW 5.3.6, customer image).
The question remained unresolved... though knc1 promised to check on his kindles...
https://www.mobileread.com/forums/sh...4&postcount=16
I feel it may be related to the fact that I had retained the factory images and not updated to a customer image.