I have bought P4P but when I first activated the system I asked for a firmware update but it always failed with an error message 0x022403 I have repeatedly made updates from PC as well as dji asstn2 p4p v.2.0.6 , handphone and ipad air 2, but never succeeded can anyone help me.

Hi echal, sorry for the troubles on updating the firmware, please try to update the firmware for more times, if the issue persists, the drone will need to be sent in. Please contact your reseller or our customer support www.dji.com/support for further assistance.