After flashing from 900 to 1000 version, the downward sensor stopped detecting the height. Rolling back to firmware 900 and resetting to defaults did not solve the problem. What should I do? Thx!

Hi, DmitrySistor. Thanks for reaching out and posting your concern. We're sorry for the inconvenience that it has caused. If you have not tried, we suggest going back and refresh your DJI Spark's firmware to V01.00.1000 and test it again. It is also suggested to perform both compass and IMU calibration before your next flight test.

DJI Gamora Posted at 4-9 00:33
Hi, DmitrySistor. Thanks for reaching out and posting your concern. We're sorry for the inconvenience that it has caused. If you have not tried, we suggest going back and refresh your DJI Spark's firmware to V01.00.1000 and test it again. It is also suggested to perform both compass and IMU calibration before your next flight test.

After a rollback and return to firmware 1000, the sensors stopped disconnecting and at an altitude of over 8 meters the spark still shows 8 meters...

DmitrySistor Posted at 4-10 03:31
After a rollback and return to firmware 1000, the sensors stopped disconnecting and at an altitude of over 8 meters the spark still shows 8 meters...

That's unfortunate to know. In that case, we suggest that you return your unit back to our Service Center for further checking and diagnosis. At your soonest convenience, please get in touch with our Customer Support: https://www.dji.com/support to assist you to open a ticket.