I have a similar problem.
Not due to heat (I live in the Netherlands and it is still the beginning of spring), but the GPS mount does not connect to the camera as tight as it was before.
With the least amount of vibration, the connection between the GPS and the camera is lost, resulting in corrupt video. Also the display shows flickering and the camera starts restarting over and over again.
With the camera moved into a very specific orientation, the power is restored again.
A few days ago, a new GPS-mount arrived (ordered online via Amazon) and this new mount feels like the old one was, two months ago.
I will mount the new GPS mount later this week and hope it will keep working longer.
I used the mini-USB connector on the camera itself for 2 days and the camera records fine now and when pressed onto the GPS-mount, the GPS also works.
But as when the camera was powered via de GPS, it looses connection every now and then resulting in "NoGPS" in the screen, or the speed shown in red.
When positioned in such a way it keeps connected, the GPS works fine.
Perhaps a mini-USB splitter would work, as long as the data-pins stay connected.
I will mount the new GPS-mount this weekend and hope it will keep working longer than the first one.
I only took the camera off the mount a few times, to read the SD-card.
Same problem here.
Mine was working fine for two months. Always plugged onto GPS-mount. Last two weeks rebooting continuously.
Until yesterday, when it starts smell electronics burned when powered on.
I taped a strip of self-adhesive Velcro (the soft part, ~8mm*25mm) onto the GPS receiver.
Seems to solve the loose fit problem.
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I have the same issue with the gps mount. the camera is very loose and you can wooble it in the mount quiet a bit. during driving the cam loses power an starts over and over again.
i would recommend everbody who uses the mount to turn the sounds in the menu on to detect this problem early on and not after the time you need the video to find out that it's corrut or missing.
the problem started this winter. must be due to the cheap plastic the mount consists of.
kind regard and thanks for the tips
If you use the supplied eva foam between, the camera and mount, this should stop loose fit of the mount.