Hello, the Jailbreak on my PW4 survived the update to FW 5.10.2. However, the KUAL booklet build from the NiLuJe Snapshots thread (build: Jan. 3, 2019) only showed a blank screen after starting. I had to follow the instructions & KUAL booklet JAR from this post:
https://www.mobileread.com/forums/sh...27&postcount=1 to get KUAL working again.