The device will go to sleep mode 1 minute after the last file was downloaded or after lost connection with the device.

Sometimes you might want to handle the Tacho5SAFE on a different phone and in order to not interfere with the download operation you will have to disconnect from the original phone.

Tap the four circles icon on the top left corner of the main application screen.

Tap the red bucket after the Tacho5SAFE identification and the the device will no longer be bounded to your phone.