Instruction manual
14
EN
Graphic User Interface
Troubleshooting
Problem Possible Cause Solution
350QX3willnotinitialize Thequadcopterwasmovedduringinitialization
Re-armtheaircraft,beingcautioustoavoidanymovementduring
initialization
GPSwillnotlock
Heavyovercast Waitforlightercloudcoverandre-lockordisableGPS
Solarares WaitfordisturbancetosubsideordisableGPS
Aircraftisindoors DisableGPS
Objectsblockingclearaccesstothesky
(underametalcover,insideacar,tallbuildings,etc...)
Moveaircrafttoacleararea
Videotransmitternearby Re-positionorremovevideotransmitter
GPShasreducedresolution
RaisedthreatlevelbytheU.S.government WaitforthreatleveltobereducedordisableGPS
TheGPSantennacoaxialcableisnicked,cut,
orotherwisedamaged
ReplacetheGPSantenna
GPSfunctionsnotoperating
properly
Thecompasshasbeenexposedtoamagnet
Movetheaircraftawayfromthemagneticsource.Inworstcase
scenario,thecompassmayneedtobereplaced
TheGPSantennacoaxialcableisnicked,cut,orotherwise
damaged
ReplacetheGPSantenna
Theaircraftisbehavingerratically RebindtheaircraftwiththeGPSfunctionoff
Aggressiveight Flylevelforafewsecondsbeforeusingothermodes
Motorswon’tstart
GPSlockhasnotbeenacquired
EnsureGPSantennahasclearviewofskyandGPSlockhasbeen
acquired
‘Compasserror’isindicatedbytheLED Seebelowfortroubleshooting‘compasserror’
Incorrectstartupprocedure Reviewstartupprocedureinmanual
Blinkingyellowled
‘compasserror’indication
Modelistooclosetoametalobjectormetalsurface Movemodelawayfromlargemetalobjectsorsurfaces
Compassneedscalibration
Calibratecompass
(see calibration reference)
Steadybeeping,
motorswon’tstart
Throttletrimisnotcentered
CalibrateDX4transmitter
(APorRTFversion)
Centerthrottletrim(BNFversion)
Won’tholdpositioninhover
WeakGPSsignal CheckGPSantennamastisextended
Compassneedscalibration
Calibratecompass
(see calibration guide)
Accelerometersneedcalibration
Calibrateaccelerometers
(see calibration guide)
Motorstakealongperiodof
timetoshutoffaftercompleting
returntohome
Pressurecalibrationisneeded RefertothePressureSensorCalibrationsectionofthismanual
Ifyouneedtoupdatethermwareinyourquadcopter,downloadthePCuser
interface*athttp://www.bladehelis.com/ProdInfo/Files/350_QX_PC_Interface.zip
Followtheon-screeninstructionsforinstallationandoperation.
Thisgraphicuserinterfaceallowsyoutomonitorsystems,adjustsystemsettings
andcalibratesensors.
Sensor Information Screen
• Seestatusofallsensorsandspeedcontrolsataglance
• Checkbatteryvoltageandaccelerometeroperation
Calibration Screen
• Calibrateaccelerometersandcameragimbal
• ReviewinstructionsforcompasssensorandDX4transmittercalibration
• Adjustgeo-referencedightboundaries
GPS Screen
• Seenumberofavailablesatellitesandsignalstrength
• Verifylatitude,longitudeandaltitudeindications
• VerifyGPSaccuracy
Device Information Screen
• Seeprogrammingsoftwareversion
• SeequadrmwareversionandvehicleID
• Updatermware
*RequiresUSBInterface(BLH7840)soldseparately.










