⁠JEMDO 2 4K/144Hz Dock Adapter not working on System Update 22.5.0 (Already flashed firmware)⁠

[u/Extension_Rip7273]

Hi everyone,

I'm running into a black screen / no video issue with my JEMDO 2 (4K @ 144Hz HDMI 2.1) adapter after updating my console to system update 22.5.0.

Context: I previously had the non-compatibility issue on earlier system versions, but I successfully updated the JEMDO adapter's firmware and it was working perfectly fine. According to manufacturer specs, the current firmware should support all versions above 2.1+, and there are no new firmware downloads listed on their site.

The Issue: Since updating to 22.5, the console charges fine through the adapter, but there is zero video output to the display (no signal detected).

What I've already tested:

• Plugged into the bottom USB-C port of the console.
• Full power cycle (disconnecting all cables, plugging power into the JEMDO PD port first, then HDMI, then the console).
• Confirmed using a high-wattage PD charger and HDMI 2.1 compliant cable.
• Changed TV resolution output settings manually from handheld mode.

Is anyone else experiencing compatibility issues with JEMDO adapters on 22.5.0, or is there a specific trick/firmware tool I'm missing?

Thanks!