Hi

I lost charge cable during vacation and would like to build one with 4 pin earphone and usb cable on site.

Could you let me know 4 3 2 1(tip) mapping of the 3.5mm jack to the usb cable?

Thank you.

Sorry to hear about the lost, to guarantee the performance, it's recommended to contact the retailers firstly to check whether you could buy a new one, if it is not available, then please contact our tech support at support@dji.com for further help.
Here is the link:
http://www.dji.com/where-to-buy

Any luck on getting the cable for the osmo mobile? Can't find it anywhere