Bricked my NSpanel Pro?

I think I may have destroyed my NSPanel Pro while trying to install Homeassistant :X… My device only starts in factory mode where only Chinese characters are displayed. With Google Lens, I was able to translate it and at least restart the EWELink app on the device. However, the device no longer receives a QR code to add it to the app on my phone.
When I try to reset the device with the 5 reboots, as described by Blakadder, it does not start a factory reset but goes to the Android recovery menu where I can navigate with the button on the PCB, but cannot select anything (a power button is needed for this). Does anyone have any ideas?