DeuceDriv3r
Second Officer
Flight distance : 5035761 ft
United States
Offline
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After updating 2 sparks from the factory supplied .0701 / .75 / .400 firmwares for AC/BAT/RC to .1000/.85/600 respectfully the sparks are no longer stable, more noisy, won't fly with the aircraft facing straight forward, and RTH at angles approaching 45 degrees, won't auto land facing the same direction it took off, again angled off... and on and on.
tried to refresh the firmware, no change
tried multiple compass cal, no change
tried multiple IMU calibrations using the app, no change
I would try a compass cal with Assistant, but the cord gets in the way, and there is no documentation on the advanced calibration,
I have tried calibrating the aircraft when cold having been near the AC outlet duct for several minutes.. although I am not convinced on this procedure..
while it lets the spark spin up faster since it gets past warmup faster.. the point of the warmup is so the IMU temp is stabilized since as it warms up, it behaves differently ... so one would think it should be calibrated close to its flight state? MEMS usually are hard coded with temperature drift tables for correction but they are generic in consumer chips.. while military grade IMU have temp drift tables calculated per each IMU
I was considering going back down to .0701 as that seems to be the consensus as the most stable and the AC seemed to fly better with that firmware
With 2 sparks, 4 batteries, and a single RC that I share between them, I am assuming I have to downgrade everything back to the original firmwares otherwise I would have firmware conflicts..
I believe that the native assistant 2 app allows downgrade to .0701.. I remember seeing it.. so that should take care of the AC and Batteries... the RC I can do with iOS by holing the 3 bars
anyone seeing the same with this firmware or having issues with rolling back.. a DJI bot/admin suggested rolling back but did not answer my specific question on procedure
Thanks
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