XAIRCRAFT FC1212-P - Manual (Page 12)

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The Connect button is green when USB Link is connected with PC correctly.
FAQ of Connection
1. Error information : connection timeout
a) Ensure 4 pin cable connected correct with link port of FC1212-P, not other link port of AHRS or
other modules.
b) Ensure 4 pin cable is well.
2. Error information : Firmware version too low or Failed to get the configure data
a) Update XAircraft Center to latest version
b) Use the upgrade on line function of XAircraft Center to upgrade FC1212-P firmware. Also upgrade
the other modules.
3. Connect button is always in gray.
a) Ensure USB Link connection correct with PC.
b) If USB Link connected well, can try to reinstall the USB Driver downloaded from XAircraft WIKI site.