after some events
1. dial *#9900# and if the Debug Level is Disabled/LOW, tap to select MID. This restarts the device.
2. Again dial *#9900# and press “RUNDUMPSTATE/LOGCAT/”
3. When it is finished press “COPYTOSDCARD(INCLUDECP RAMDUMP)
4. In the main folder of the device filesystem, there will be a new folder called “log”. The log file should be there.
Developer Tools on Play Store
[ https://medium.com/androiddevelopers/developer-tools-on-play-store-85fb710ee33b ]
Supporting your development and testing workflows. Dynamic delivery.
by Ben Weiss
to get previous builds – [https://play.google.com/apps/test/package name/version code]
OWASP Mobile Security Testing Guide [https://github.com/OWASP/owasp-mstg/blob/master/README.md]