@David-TP I'm sorry, I forgot to add informations after I crashed out emotionally at the thought of having to set everything up again. To our luck though, the Deco was only showing a constant red...

@David-TP unfortunately the router crashed on us again today.

@SwissPirate I've replugged the device and after entering SIM PIN, it's working again. Attached you can find the screenshot, is the suggested firmware installed?

@David-TP I've carefully followed the instructions. Having waited for around 10 minutes while "upgrading" the firmware, now it's showing a constant red light again with no internet connection. I'll...

@David-TP Hi, service provider would be Wingo (daughter company of Swisscom). How can I install this firmware on the router?

So I've experienced this issue twice now and it is getting extremely frustrating. I've set up my Deco X50 as a 5G router with a SIM card of a very reliable network provider in Switzerland. First...