Main issue: battery date 08...
Conclusions: Biggest issue is the old battery which is more than 2.5 years old [08-2014]. After searching internet on the subject there seems to be extrapolated 15% loss to useless battery depending on source. Battery discharged very fast in the beginning. As my kid uses it i have no chance to investigate discharge time for now but seems less extreme. @BG, Whats up with the 2014 battery ?
Also had some minor problems:
- screen protector, following sticker nr 1 & 2 gets you stuck with an open protector foil