Hello,
I have a PW4 with FW 5.12.1. I installed the most current (i.e. packages from the first post in this thread) Hotfix, USB Network, and Python packages today successfully, too. I can run KUAL and start apps, etc.
However when trying to install the rescue pack and crp, I get these error messages in the MR Installer log file:
[2019-11-18 @ 16:40:32 +0200] :: [MRPI r16257] - Beginning the processing of package 'Update_rp_20180530.N_install.bin' (rp 20180530.N I) . . .
Package 'Update_rp_20180530.N_install.bin' (rp 20180530.N I) is not targeting your device [2F7 vs. 11 0F 10 24 1B 1C 1D 1F 20 D4 5A D5 D6 D7 D8 F2 17 60 62 5F 61 C6 DD 13 54 53 2A 52 201 207 206 202 205 204 26B 26C 293 294 26E 26F 20C 20D 21C 219 21B 269 26A], skipping . . .