For troubleshooting problems with crashes a regular log is almost always not enough. In such cases to identify the origin of the problem we need the system log. Below is the instruction how to collect and get it.
Part #1: prepare the device
Switch device to the developer mode. To do this: go to "Settings" -> "About" -> tap on Build Number 7 times.
Go to "Developer Options"
Enable "USB debugging"
4M should be enough for storing the logs we need until you're able to do the second part (getting log from the device);
Important: you need to reproduce the problem after you've done with the first part!
Part #2: get the log
Connect your device to PC with USB cable.
Direct download link:
adb logcat -v threadtime -d > C:\logcat.txt
Send this log to us by contacting support or by any other way.
Alternative way for ROOT users:
Download and run CatLog.
Choose "Record" in the menu. Choose a name for a log file or just press OK. Now you can press Home button, CatLog will continue recording the log in background.
Reproduce the issue.
Open CatLog press "Stop record" in the menu.