Hi i have change the battery in a polar f6 but?

The Polar watches are not designed to be taken apart. It is a common misconception to think of them as watches and not mini computers.

The best case scenario is too send your watch and clip into a Polar Authorized Service center. Polar headquarters are in Finland and their should be a close center for you in Oslo.

Visit www.polar.fi to find your local service center.

Another thing, when you change the battery yourself the watch loses it's seal and is not watertight anymore. Polar uses a special vaccum chamber to repressurize the seal to maintain watertightness.

Simple: from the default time screen. Push either of the right side buttons until you see settings.

From settings: Choose Watch.

From watch choose time set.

To get the complete manual visit my tips and tricks page.

Someone posted a link on how to change the batter on an F11. If it's not longer under warranty or you just don't want to bother with sending it back and the extra costs, you could follow this: http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/

Follow this link:

http://www.polar.fi/en/support/product_support?product=125

This is original Polar support site.Here you will find all the info available.

Rate me, please.

The only solution here can be: You have to completely reset your watch and then try to synchronize it again. In case if you've lost instructions, download them here:

www.polardiscount.com/scripts/prodView.asp?idProduct=76 - 87k - Cached - Similar pages

On the right side of the screen you will see:
Polar F6- Black Coal manual.
Click on it and get full instructions.
If all this do not work, you'll need to find your nearest watch repair shop and ask for help.

Do not forget to rate please.

Here is the link:

www.polardiscount.com/scripts/prodView.asp?idProduct=76 - 87k - Cached - Similar pages

On the right side of the screen you will see:
Polar F6- Black Coal manual.
Click on it and get full instructions.
Do not forget to rate please.

Here is the link:
www.polardiscount.com/scripts/prodView.asp?idProduct=76 - 87k - Cached - Similar pages
On the right side of the screen you will see:
Polar F6- Black Coal manual.
Click on it and get full instructions.
Do not forget to rate please.

Here is the link:
www.polardiscount.com/scripts/prodView.asp?idProduct=76 - 87k - Cached - Similar pages
On the right side of the screen you will see:
Polar F6- Black Coal manual.
Click on it and get full instructions.
Do not forget to rate, please.

Here is the link:
www.polardiscount.com/scripts/prodView.asp?idProduct=76 - 87k - Cached - Similar pages
On the right side of the screen you will see:
Polar F6- Black Coal manual.
Click on it and get full instructions.

try a new battery