Basic problem is that a phone can die from one second to the next. I had it. Woke up with phone alarm. Went to bus station and wanted to look what time it is. No reaction at all. Mainboard died and i had to wait 2 weeks to get the phone with text: we where not able to restore the data. It was a Note 2 from Samsung. So i would never trust a phone! I had some bitcoins in my phonewallet but i had a complete backup of everything. So no loss.