Instructions

Firmware Update | 33
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Amotorshaftmightbeslightlybentorapropellerisdefectiveresultinginvibrations.
Eitherreplacingthecompletemotorarmorinstallingacompletenewsetofpropellers
maysolvethisissue.
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CrashingtheNavigator250,orexposingittomechanicalstressduringtransportation
typicallycausesthesephenomena.
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Theonboardsensorhaslostitsfactorycalibration.Typically,thisiscausedbyahardhit
(crashes),orexposuretohightemperature.Itcanalsoberelatedtotransportissues.
23.3 After a crash
It is strongly suggested to always inspect for damage.
Replace defective parts immediately. Defective parts
can impact properly working parts!
Immediately disconnect the ight battery after a crash!
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AneasywaytomaintaintheNavigator250perfectconditionisthroughvisualinspection
aftereverycrash.
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Duringacrash, a motor and arm may be broken. Even if the Navigator 250 is not
noticeablydamagedatrstsight,theremaybeminorcracks.Suchcrackscanputthe
propelleroutofalignmentwiththerestandmaketheNavigator250unstable.Besides,
crackscanleadtootherproblems.AlwayschecktheNavigator250carefullyforcracks.
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Ensureallscrewsaresecurelytightened.Replacepartswithwornoutorstrippedscrew
holesimmediately.
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Ifapropellerisdamagedinacrashorotheraction,replaceitimmediately.
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Thisalsoappliesiftherearene tears or grazing in the propeller.Due to the high
speed,partscouldbecomelooseifthepropellersaredamagedandresultinproductor
propertydamageorpersonalinjury.
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Replacedamagedpropellersaccordingtochapter‘14.6Installingthepropellers’
on page 18.
24. Firmware update
24.1 Preparation
Software
1. Open www.rclogger.com and navigate to the Navigator 250 product page.
2. Downloadthefollowingitemsfromthe‘Downloads’tab:
▬
EYELoadervx.ysoftware
▬
RCEYENavigator250Firmwarevx.yrmware
3. InstalltheEYELoadersoftwareonaWindows
®
computerrunningWindows
®
XP or
higher.
4. Start the EYE Loader programme. The interface shows ‘NOT CONNECTED’.
Preparing the Navigator 250
1. Removetheightbattery.
2. Remove the two screws holding
therightpanelinplace.
3. Slidethepanelupandremoveit.
4. Connect a regular micro USB
datacabletoyourcomputer.
5. Press and hold the calibration
button on the right rear LED.
6. Locatethe microUSBsocket on
the Navigator 250 and connect
theUSBdata cable to the micro
USBsocket.See»Fig.16.
7. SelecttheNavigator250rmwarelethroughthe“BROWSE”functioninthesoftware,
thenclickon“FIRMWAREUPLOAD”tostartthermwareupdate.Whentheupdateis
complete,theinterfaceshows“SUCCESS”.
8. EjecttheNavigator250viatheUSBinterfaceonyourcomputer.
9. DisconnecttheUSBcablefromtheNavigator250.
10. Installthecarbonbrepanelagain.
Fig. 16