Used to send a log file to the developer! Collects the log from the system. It will be zipped, saved to the SD-Card and send with an application of your choise like GMail, etc.. ! Note: On Android 4.1 (Jelly Bean) this log file only collects the log written from the app itself, not the complete log from the system! This is a new security from Google on Jelly Bean. Apps can only read logs they have thelf written.