Hi,

Yesterday I paired my Quarq with a Garmin 500 as usual. I then calibrated and all worked well. I then started riding but no cadence or power information showed on the display. It's clear the unit is transmitting and being found by the Garmin 500 and it worked well on a ride the previous day with no problems. Just when I did it this morning no data was returned. I didn't do anything to the bike or Garmin 500 between rides. Any ideas what to look for?

-Peter

Also, check your Edge 500 firmware version is version 2.2 or higher. Let us know if the problem persists. - Jim

I also have this problem, with a newly purchased second hand Quarq Cinqo and Garmin Edge 500 with firmware 2.3. The units pair, calibrate successfully, stay connected. The magnet is positioned using the bb mount and I've tried all of the obvious things like resets and eliminating other ant+ devices. Something I've found is that I can manipulate the calibration numbers by putting various levels of pressure on the pedal - so it seems like the strain gages are working. Did any of the other posters resolve this problem? Or has anyone got any ideas?

I had the same issue as numbat (no power or cadence from time to time despite proper pairing and calibration). After adding a 2nd magnet adjacent to the 1st magnet (not enough room to stack the magnets between the frame and the Quarq), my problems seem to have gone away. I did not need to change the battery. I will re-post if the problems arise again.

FYI, my bike setup: - Quarq Cinqo with Specialized Cranks (BB30) and SRAM Red Sprinter Chainrings on Specialized Tarmac (52cm) - Garmin 500 with firmware 2.3 upgrade

I am getting the same problem on my 310XT. The unit finds the quarq fine, and I can calibrate (although sometimes it takes a long time to calibrate, so I have to turn off the garmin and on again, then it will calibrate in a couple of seconds). But during the ride it will stop transmitting power and cadence for extended periods. Occasionally it will begin transmitting again (at reasonable values) but will drop out again. Dropouts can last anywhere from a minute to an hour. This is really frustrating. It happens on both my bikes (one has the magnet fixed to the frame using adhesive, the other I have moved the magnet closer with still the same problem).

I don't understand why this is happening all of a sudden, I have had a good six months of use without any troubles. It has only started happening in the last two or so weeks. I have replaced the battery, but this does not help either. My garmin is running v3.00.

Please help, I am getting really frustrated with this!!

Ok thanks for the reply - I will try this. The battery cover is good, and the connections look good. I will try the hard reset and see if that fixes things and report back. Thankyou!

Hi Mieke - I have tried all of your suggestions, and I still get the problem.

jtljohnson - Thanks for the suggestion, I may try this - but I have only recently started having this problem - it has been working fine with the software upgrade up until a couple of weeks ago.

Hi Alan,

I hope you have already contacted our customer service folks directly so that they can help you resolve your problem as soon as possible. Sorry for the hassle and inconvenience.

Gizmo, contact our customer service directly. Right now via phone is best as we are backlogged with our emails. If you use the same model and tooth count of rings, you can put new ones on without affecting the readings. Just make sure to retorque all the bolts to 10Nm. If you are chainging tooth count and brand/model of rings, it's likely your readings will be affected. We offer free calibration in that case.