Hi, i update the firmware in my phantom 3 advanced, but after upgrade i have problems to calibrate the compass and lost signal, how to downgrade the firmware to version v1.3.20 or exist other solution?. Thanks

Hi Lobison.  did you check the kp index ?

veteranpilot Posted at 2015-9-21 10:13
Hi Lobison.  did you check the kp index ?

i dont understand, why index?

From what I understand, downgrade the same way you upgrade put the downgrade version back on your SD card.   I have never done this though but was almost ready to after I upgraded to newest version.  I had to re-link the aircraft to my RC to fix the problem I had.

Hi again . When the kp index is high.. you cannot calibrate your compass perfectly. even you cannot use the Dji's intelligent flight modes.. you should try a good rc calibration and imu calibration then gimbal calibration. i hope that it will be okay.

ok, im try to install the after version but the aircraft is tilt and it makes noise, the red light never pass to green

some of Argentina here have told me that the latest version is flawed and needs to be volveer to the previous version of firmware
this is the report
Result: Success.

========== 2015.08.30 22:55:14 =====================
Packet: P3S_FW_V01.03.0020.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2015.08.30 22:58:03 =====================
Packet: P3S_FW_V01.03.0020.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:11 remo-con disconnect======
Packet: P3S_FW_V01.04.0010.bin
Upgrading ...
Result: Success.

========== 2014.01.01 00:00:12 remo-con disconnect======
Packet: P3S_FW_V01.03.0020.bin
Upgrading ...
Result: Failed.
Reboot the aircraft and try to upgrade the firmware again.

========== 2014.01.01 00:00:12 remo-con disconnect======
Packet: P3S_FW_V01.03.0020.bin
Upgrading ...
Result: Failed.
Reboot the aircraft and try to upgrade the firmware again.

========== 2014.01.01 00:00:12 remo-con disconnect======
Packet: P3S_FW_V01.04.0010.bin
Upgrading ...
Result: Success.

========== 2014.01.01 00:00:12 remo-con disconnect======
Packet: P3S_FW_V01.04.0010.bin
Result: Abort.
The firmware on the SD card is identical to or older than the current firmware on the aircraft.

========== 2014.01.01 00:00:12 remo-con disconnect======
Packet: P3S_FW_V01.03.0020.bin
Upgrading ...
Result: Failed.
Reboot the aircraft and try to upgrade the firmware again.

========== 2014.01.01 00:00:12 remo-con disconnect======
Packet: P3S_FW_V01.04.0010.bin
Upgrading ...
Result: Success.

and I could fix the problem, I had the faulty micro sd card and when I wanted to make the downgrade was branded . Change the memory and smoothly