Some people however claim, they used Chromium browser. Also here is an example of someone who cant even upgrade anymore:
Then I also found posts of people on Amazon Germany in reviews, who said this:
Translation:
"I have two devices. One is in use, and the other occasionally comes with me to hotels. Today, after an update, one of them no longer boots. I take the second one out of my bag—and it won’t boot either. Both are suddenly dead with just a blue LED. I then tried to restore both devices using the manufacturer’s recovery instructions (YouTube). On both devices, the attempt fails with a “failed” message. Great. Two Brume2 devices suddenly broken out of nowhere. Very disappointing!!!!"
This seems to become more and more dramatic. Eventually mostly all Brume 2 will fail and most customers wont receive an email from Glinet because theyre not registered.
Maybe Glinet should put a warning on their front web page / store, also inform dealers like Amazon about this mess.