Network connections were really bad, no internet / YouTube despite full WiFi. Galaxy S2 has next to it in top working condition. Time went times not. Since I was several weeks away and my living room so all units without electricity, the thing did not go on. The blue LED has a few seconds geleuchte and that's it again.
It has everything helped nothing! Since I do not send back such a device with my credentials, I have decided it as a loss to write off. Curious how the technician now times I've screwed the case and find in there a flat iron with 90x40x4mm. Here the device some significance was given by weight, since manufacturers would rather put a little more in the important quality.
Conclusion. never again.