User manual

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l Automatic lap: Choose Off, Lap distance or Lap duration. If you choose Lap distance, set the dis-
tance after which each lap is taken. If you choose Lap duration, set the duration after which each lap
is taken.
GPSrecording must be turned on to use automatic pause or distance-based automatic lap.
FIRMWARE UPDATE
The firmware of your M400 can be updated. Any time a new firmware version is available, FlowSync will notify
you when connecting M400 to your computer with the USB cable. The firmware updates are downloaded via
the USB cable and FlowSync software. Flow app will also notify you when new firmware is available.
Firmware updates are performed to improve the functionality of your M400. They can include improvements to
existing features, completely new features or bug fixes, for example.
HOW TO UPDATE FIRMWARE
To update the firmware of your M400, you must have:
l A Flow web service account
l Installed FlowSync software
l Registered your M400 in the Flow web service
Go to flow.polar.com/start, and create your Polar account in the Polar Flow web service and download
and install FlowSync software onto your PC.
To update the firmware:
1. Plug the micro USB connector into the USB port in the M400, and plug the other end of the cable into
your PC.
2. FlowSync starts syncing your data.
3. After syncing, you are asked to update the firmware.
4. Choose Yes. New firmware is installed (this may take some time), and M400 restarts.
Before updating the firmware, the most important data from your M400 is synced to the Flow web service.
Therefore you will not lose important data when updating.