Thanks @chirpy for this, had one of mine drop off and would not recover using Markus' driver.
It seemed to be dead with no reporting and no device side-button response (3 quick flashes) after pairing.
Tried the device side-button 5 sec. re-pair and 10 sec. reset multiple times to no avail.
Loaded up your driver and after the 10 sec. device side-button reset/discovery/pairing it's back up and reporting normally (and also doing the device side-button = 3 quick flashes again).
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