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GoPro Karma drones grounded worldwide, thanks to possible GPS glitch

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6D彩票网开户Yes, some people are (or were) still flying them

GoPro Karma and stabilizer grip in photos Photo by Sean O’Kane / The Verge

Owners of the GoPro Karma have been unable to fly their drones since the new year began, according to and . The problem is affecting owners all around the globe, and it seems to be related to the recent so-called clock “rollovers” in the GPS and GLONASS satellite systems. While most tech companies tried to avert problems with the rollovers by issuing software updates over the last few months, GoPro has not updated the Karma since September 2018, nine months after it discontinued the drone.

Multiple owners say their Karma controllers are flashing errors about not receiving a GPS signal, and that they can’t calibrate the compass. They’re not able to fly the drones at all, even after disabling GPS, though one claims to have sidestepped the issue by factory resetting the controller and turning GPS off. A GoPro spokesperson tells The Verge that the company’s engineering team is “actively troubleshooting” the issue, but didn’t offer any more information.

Here’s how our own James Vincent described the GPS rollover issue last year:

The rollover issue itself is caused by the fact that GPS systems count weeks using a ten-bit parameter. This means they start counting at week zero and reset when they hit week 1,024. The first count (or “GPS epoch”) started on January 6th, 1980, and the first reset took place on August 21st, 1999. That means the next one is due April 6th this year.

6D彩票网开户When the rollover happens older devices may reset their date, potentially corrupting navigation data and throwing off location estimates. GPS relies on precise timing data to operate, and each nanosecond the clock is out translates into a foot of location error.

6D彩票网开户GLONASS has a similar problem counting days after a certain amount of time, and is at the end of 2019 (or the start of 2020).

GoPro had problems with Karma from the moment its first (and now only) drone went on sale back in 2016. Some of them were falling out of the sky just weeks after the October 2016 launch, thanks to a poorly designed battery latch, and GoPro recalled the drone on the night of the 2016 US presidential election. The company struggled to find market share with Karma once it was back on sale, but it ultimately wasn’t able to turn enough of a profit on the drone to justify keeping the program up and running.

GoPro exited the drone business in January 2018 and laid off hundreds of employees who worked on Karma. The company said at the time that it would “continue to provide service and support to Karma customers,” though it never mentioned when that support might end. It’s unclear how many owners might be affected as GoPro never disclosed the total number of Karma sales before or after its discontinuation.

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