david.p.mann
Captain
Flight distance : 18669501 ft
United States
Offline
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Autumn,
Thanks for the update. The ability to roll back the firmware to the previous version will be greatly appreciated in the event a new firmware release "fixes one thing but breaks another."
Here are some additional firmware fixes that I kindly suggest DJI address in its next firmware update for the Phantom 3:
1) Enable IMU calibrations at ambient temperature without incurring a "IMU is Warming Up" message for 1-3 minutes on first power up. Cuurently, it is necessary, in many cases, to chill the P3 below ambient temperature prior to starting an IMU calibration in order to eliminate the "IMU is Warming Up" message after first power on cycle following an IMU calibration.
2) Implement an easy, reliable, permanent fix to the "tilted horizon" camera gimbal issue that would require only that the P3 be placed on a flat, level surface and then performing an "Gimbal Auto Calibration" in the Gimbal Param Settings menu. Many P3s suffer from a camera gimbal with a tilted horizon (non-level camera) out of the box, and the current Gimbal Auto Calibration does not correct this issue for many owners. Performing an IMU calibration (several) followed by a Gimbal Auto Calibration also did not correct this situation for me and many others. It took repeated, extraordinary measures (one hour chilling of P3 in a refrigerator), followed by immediate IMU calibration, followed by Gimbal Auto Calibration to finally get my P3 camera level. Such gymnastics should not be required to achieve this critically important "level camera" performance.
3) increase the speed at which the P3 adjusts the camera gimbal to perfectly level following a Yaw maneuver in either clockwise or counter-clockwise direction. I finally got my camera horizon level by performing a series of IMU cold calibrations and Auto Gimbal Calibrations. But my camera is often tilted 3-7 degrees for 20-30 seconds following a yaw maneuver while flying and then it slowly corrects back to level. My Inspire 1 responds much more quickly to adjust camera gimbal tilt following a yaw maneuver.
4) Current battery firmware is subject to reporting incorrect high battery charge level percentage, particularly after a battery firmware update. Add additional "intelligence" to the battery firmware that compares battery voltage to calculated battery level percentage, particularly for calculated battery level percentages greater than 85%.
5) On several occassions, when flying when there were steady 15-17 mph winds, I observed that the P3 did an amazing job of holding its position when hovering (no stick input). It even quickly corrected its position when wind gusts moved it a couple feet. So, P-GPS flight control was working well. However, when attempting to transition from a hover and fly forward straight into a 15 mph head wind, if I applied only a "little" forward stick with the intent to start moving forward slowly, the P3 would instead start drifting backwards with the wind. I could quickly correct for this by applying more right stick. But the P3 was responding as if the the right stick input was relative a 0 mph wind rather than increasing motor power relative to that required to maintain its position in a hover. I am an experienced pilot and could compensate for the wind drift, but this struck me as something that needed tweaking in the P3 flight control software.
Thank you for listening to your users and responding to reported firmware issues. Please ask your programmers to clearly document what fixes have been implemented in the firmware update notes for each firmware release. Just noting "various bug fixes" is insufficient information.
I would be happy to respond to any additional questions you may have about my suggested firmware improvements above.
- Dave |
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