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Technician Bulletin

iPhoneTroubleshooting Home/PowerReset:IfanAppledevicedoesnotpoweronorfunctionproperlybeforeorafterrepair,holdingthehomeandpowerbuttonsuntiltheApplelogoappearswillsoftresetthedevice.Thiswillresolvemostsoftwareandhardwaremalfunctionissues.

Disconnectbattery:Ifadevicedoesnotrespondorpoweronduringtestingorafterrepair,disconnectthebatteryofthedevice.Thiswillforcethedeviceoffandshouldresolvethenoresponseissue.Ifthedeviceisnotabletobepoweredoffpriortorepairusingthestandardbuttonmethod,thebatterymayalsobedisconnectedtopowerthedeviceoff.

HoldingHomeandPowerButtons

DisconnectingiPhoneBattery

Partstesting:Allpartsshouldbetestedpriortofullinstall.Testingthepartwillhelptoavoiddelayingtherepairandtoidentifythatthepartisfullyfunctioning.Ifthepartisfullyfunctioningduringtestingbutnotaftercompleteinstall,itismostlikelythatthepartwasdamagedduringinstall.Ifapartpresentsanissue,beforemarkingasdefectivepoweroffthedeviceordisconnectbattery.Reconnectthepartandandbatteryandre-test.Themajorityofpartissuesarecausedbyimproperconnectiontothelogicboard.

Crosscheckingparts:Ifapartshowsissuesduringtestingandmultipleconnectionattemptshavealreadybeenmade,testasecondparttocrosscheckfunctionality.Ifthesameissueresultsonthesecondscreen,theissueismostlikelybeingcausedbythelogicboard.ContactWerxTechniciansforfurthertroubleshooting.

CrosscheckingiPhone5SScreens

TestingPartsPriortoFullInstall

Alignmentissues:Partsthatreceivedataviacontactpointssuchastheearpiecespeakerandloudspeakermaynotfunctionifnotproperlyalignedduringinstall.Alwayscheckalignmentandcontactswhenexperiencingissueswiththeseparts.Checkbracketsthatholdthesepartsinplaceandverifythattheyarenotsittingcrookedafterinstall.Camerasandsensorssuchastheproximityandambientlightsensorfunctionviaclearopeningsinscreenorframe.Ifthesepartsarenotalignedproperlyafterinstall,theymaynotfunctioncorrectly.Checkalignmentofthesepartspriortoreplacement.Oncecorrectalignmentisverifiedandmalfunctionstillresults,testanewparttocrosscheck.

AlignediPhoneFrontCamera

AlignedEarpiecespeakerwithcontactspriortoscrewinginbracket

DamagedFlexCables:Flexcablesthatareadheredmaytearifhandledroughly.Lowlevelheatshouldbeappliedtothescreensideoftheflexcabletorelease.Ifheatisnotused,toomuchforcewillberequiredwhenpryingflexcablefromdisplay.Neverpullonflexcablesduringremoval.

UsingtheheatguntoreleasetheiPhone6frontfacingMic

CarefullypryingupearpiecespeakercontactsoftheiPhone5Sfrontfacingcamera

UsingtheheatguntoreleasetheadheredbackflexconnectionoftheiPhone6