Herelink stuck in Update Screen, no wifi, no PC update

Hy there,
im having trouble with my herelink. As I found out im not the only one who couldn’t get the wifi working so I made a factory reset. That now caused that im stuck in the update screen. But as I can’t connect to the wifi (regardless in what country setting, im in EU). On the “Update Device” screen it just says to “connect device to 5ghz wifi and then click proceed (0.0.0.0)” (which I can’t do without finding a wifi).
I managed to get into the device info to find following info:

Serial Number: cbb651e9
Model: Optimus
Android version: 7.1.2
OEM Build number: FRU01200409
Baseband version: Bumblebee.r03.t34-d9a8837e4-2fe1924
kernel version: 4.9.27-264447-9850d22fef246 Soon@soon6401 #5 Tue Jul 20 15:43:11 CST 2021
Build Number: N2G47J test-keys

When I try to update the firmware via USB on the PC the script crashes as soon as it finds the Remote.

Any help is much appreciated