ZTE V-790 Owner's manual

ZTEV790WCDMAMobilePhone

After-salesServiceManual(Level1)

Version1.0

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LEGALINFORMATION

Thecontentsofthisdocumentareprotectedbycopyrightlawsandinternationaltreaties.Anyreproduc-

tionordistributionofthisdocumentoranyportionofthisdocument,inanyformbyanymeans,without

thepriorwrittenconsentofZTECORPORATIONisprohibited.Additionally,thecontentsofthisdocument

areprotectedbycontractualcondentialityobligations.

Allcompany,brandandproductnamesaretradeorservicemarks,orregisteredtradeorservicemarks,

ofZTECORPORATIONoroftheirrespectiveowners.

Thisdocumentisprovided“asis”,andallexpress,implied,orstatutorywarranties,representationsor

conditionsaredisclaimed,includingwithoutlimitationanyimpliedwarrantyofmerchantability,tness

foraparticularpurpose,titleornon-infringement.ZTECORPORATIONanditslicensorsshallnotbeliable

fordamagesresultingfromtheuseoforrelianceontheinformationcontainedherein.

ZTECORPORATIONoritslicensorsmayhavecurrentorpendingintellectualpropertyrightsorapplica-

tionscoveringthesubjectmatterofthisdocument.Exceptasexpresslyprovidedinanywrittenlicense

betweenZTECORPORATIONanditslicensee,theuserofthisdocumentshallnotacquireanylicenseto

thesubjectmatterherein.

ZTECORPORATIONreservestherighttoupgradeormaketechnicalchangetothisproductwithoutfurther

notice.

UsersmayvisitZTEtechnicalsupportwebsitehttp://ensupport.zte.com.cntoinquirerelatedinformation.

TheultimaterighttointerpretthisproductresidesinZTECORPORATION.

RevisionHistory

RevisionNo.RevisionDateRevisionReason

V1.02012–11–05

EditedbyZTEUniversity

PublishingDate:2012–11–05

1ProductSummary....................................................1

1.1ProductOverview.................................................................1

1.2StandardConguration..........................................................1

1.3Specications.......................................................................1

1.4MainFunctions.....................................................................2

2FunctionTest...........................................................3

2.1NFFTest.............................................................................3

2.2IMEIChecking......................................................................4

2.3SoftwareVersionChecking.....................................................4

3SoftwareDownload.................................................5

3.1BeforeYouBegin..................................................................5

3.1.1ComputerandSystemRequirements...............................5

3.1.2DataCable..................................................................5

3.1.3ServiceSoftware..........................................................5

3.1.4Cautions.....................................................................5

3.2InstallDriver.......................................................................6

3.3CheckCOMPort.................................................................11

3.4DownloadSoftware.............................................................12

3.5ExportDownloadInformationFile..........................................15

4Disassembly..........................................................19

4.1DisassemblyTools..............................................................19

4.2ExplodedView..................................................................19

4.3DisassemblyFlowChart.......................................................20

4.4DisassemblySteps..............................................................21

4.5Composing........................................................................31

5PrincipleandMainboard........................................33

5.1PrincipleBlockDiagram.......................................................33

5.2BasicComponentDistribution...............................................34

5.3PCBLayout........................................................................36

6Troubleshooting....................................................39

6.1HousingFailure..................................................................39

6.2BatteryFailure...................................................................39

6.3SwitchingOnFailure...........................................................39

6.4Hanging............................................................................40

6.5AutomaticallySwitchingOff..................................................40

6.6ChargingFailure.................................................................41

6.7USIMCardUnidentied........................................................41

6.8T-FlashCardFailure............................................................42

6.9NoTransmittedVoice...........................................................42

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6.10NoReceivedVoice.............................................................42

6.11NoRingTone...................................................................43

6.12VibrationFailure...............................................................43

6.13T ouchscreenfailure..........................................................44

6.14DisplayFailure..................................................................44

6.15CameraFailure.................................................................45

6.16KeypadBacklightFailure....................................................45

6.17WiFi/Bluetooth/FMFailure...................................................45

6.18NoSignal........................................................................46

6.19NoCallsOut.....................................................................46

7FinalTest..............................................................47

7.1FinalSoftwareVersionChecking............................................47

7.2FinalFunctionTest..............................................................47

8Appendix...............................................................49

8.1After-SalesTechnicalSupportWebsite....................................49

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1ProductSummary

1.1ProductOverview

Note:

Thepictureisforreferenceonly,pleasemaketheobjectasstandard.

1.2StandardConguration

NO.NameQTY

1Handset1

2Battery1

3Charger1

4Datacable1

5Usermanual1

1.3Specications

�Frequency:GSM900/1800/1900MHz,WCDMA900/2100MHz

�Operatingsystem:Android4.0

�Dimensions:116mm×61.7mm×12.6mm

�Weight:about120g(includebattery)

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�LCD:3.5inch320×480pixelsHVGAresolution,262Kcolor

�Camera:2.0megapixelCMOSsensor

�Batterycapacity:1200mAh

�ExternalT-ashcard:upto32GByte.

�Earphone:standard3.5mmearphone

1.4MainFunctions

�Supportdualmodeanddual(U)SIMcard.

�SupportSMS,MMS,phonebookandvoicemail.

�SupportGPS,bluetooth,WiFiandFM.

�SupportMP3,MP4,cameraandvideo.

�SupportE-mail,WAP2.0andWWWbrowser .

�Supportandroidapplicationsoftware.

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2FunctionTest

2.1NFFTest

NFFFlowChartItemsStepsandRequirementsTools

1.Checkwhethertheaccessoriesin

salespackagearecomplete.

2.Makesurethatthereisnottoo

muchdustonthelens.

3.Thecolorofwaterprooflabel

shouldremainunchanged.

4.Makesurethemobilephonehas

nophysicaldamage.

(1)

Ba-

sicre-

quire-

ments

5.Themobilephoneshouldbestill

underwarranty.

/

1.Insertatestcardandbattery.

PressthePowerkeyandcheck

whetheritcanbeswitchedon.

2.Restorefactorysettings(referto

UserManualfordetails).

(2)

Fault

replay

3.Testthereportedfaultsandmake

surethatthefaultsdonotreplay.

Test

card

and

bat-

tery

Press*983*70#andthemobile

phonewilldobasicfunctiontestau-

tomatically.

(3)

Basic

func-

tion

test

Ifthecodefailstoactivatebasic

functiontest,visuallyinspectLCD

andmanuallytestringtone,vibra-

tion,keypad,cameraandthelike.

Test

card

and

bat-

tery

1.Dialoperatorservicephonenum-

berandmakesurethatthespeech

qualityisgood.

(4)

Call

test

2.Insertamatchedheadset.Make

surethatthereal-timespeechqual-

ityisgoodandyoucanhangupnor-

mally.

Bat-

tery,

head-

setand

test

card

(5)

Cha-

rging

test

Insertthematchedchargerand

makesurethatitcancharge.

Bat-

tery

and

char-

ger

Testthemobilephonefromstep(1)to(5).

Stoptestifyoundfaultsatonestep.And

themobilephoneisfaulty.Ifthereisnofault

afteryounishtest,themobilephoneisanNFF

phone.

Con-

clu-

sion

Note:refertoUserManualfortheitemsthat

theabovevestepscannottest.

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2.2IMEIChecking

Press*#06#andcheckwhethertheIMEIshownintheLCDisthesamewith

theonesinthelabel,packagingandcerticate.

2.3SoftwareVersionChecking

Press[Menu→ →

→

Settings→ →

→

Aboutphone→ →

→

Buildnumber]tocheckwhether

thesoftwareversionisthelatestone.

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3SoftwareDownload

3.1BeforeYouBegin

3.1.1ComputerandSystemRequirements

�Computerprocessor:Pentium500MHzorhigher

�RAM:128MBormore

�Diskspace:50MBormore

�Supportedoperatingsystem:Windows2000/XP ,Vista

3.1.2DataCable

Materialcodeofdatacable:052621600325

3.1.3ServiceSoftware

TypeName

Description

Driver

5.2066.1.14

Thedriverisusedtoenablethe

computertoidentifythenew

hardware.Usethelatestversion

todooperation.

Download

platform

SalesMultiDL_MSM-

7227V1.00.01

Theplatformversionisfor

referenceonly.Usethelatest

versiontodosoftwaredownload.

Softwareversion

00000B0000ZTE_WC-

DMA_7227V1.0.0

Thesoftwareversionisfor

referenceonly.Usethelatest

versiontodosoftwaredownload.

Besuretoupgradethesoftware

versionofeachfaultymobile

phonetothelatestone.

OfcesoftwareMicrosoftExcel

Toexportdownloadinformation

le.

3.1.4Cautions

�Thesoftwareversionofeachfaultymobilephoneshouldbeupgradedto

thelatestone.

�Thesoftwareversion,downloadplatformsoftwareanddriverinthisdoc-

umentareforreferenceonly,usethelatestsoftwaretodothesoftware

download.

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�Besuretobackupalluserdatainthemobilephonebeforesoftware

download.

�TakeouttheUSIMcardfrommobilephonebeforesoftwaredownload.

�Donotdisconnectmobilephoneandcomputerinthedownloadprocess.

�Themobilephonewillbeoutofuseinthedownloadprocess.

�Thebatteryisunnecessaryduringinstallingdriverordownloadingsoft-

ware,soyoudonotneedtoinstallbatterytothemobilephone.

3.2InstallDriver

Prerequisite

Pleaseusethelatestversionofcabledriver .

Steps

1.Double-clicktheicontoinstalldriver .

2.SelectthesetuplanguageandclickOK.

3.ClickNext.

4.ClickNext.

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5.ClickInstall.

6.Installingthedriver .

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7.Installsuccessfully,clickFinish.

8.IftheFoundNewHardwareWizardappearsafterinstalledthedriver ,

trytoinstallthedriverasfollows.

9.SelectInstallfromalistofspeciclocation(Advanced)andclick

Next.

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10.SelectDon’tsearch.IwillchoosethedrivertoinstallandclickNext.

11.SelectPorts(COM&LPT)andclickNext.

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12.SelectZTEHandsetDiagnosticInterfaceandclickNext.

13.Installsuccessfully,clickFinish.

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--Endofsteps.--

3.3CheckCOMPort

1.Pressandholdthedownvolumekey.

2.ConnectmobilephoneandcomputerwiththedefaultMicro-USBcableto

entertheFTMmode.

3.Right-clickMyComputer,andclick[Manage→ →

→

DeviceManager→ →

→

Ports(COM&LPT)]tochecktheCOMportZTEHandsetDiagnostic

Interface(DFU)(COM**).

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3.4DownloadSoftware

Prerequisite

Note:

�Thebatteryisunnecessaryduringdownloadingsoftware.

�MakesurethemobilephoneisinFTMmodebeforedownloadingsoftware.

�Thedownloadprocesslastsabout5minutes.

Steps

1.Pressandholdthedownvolumekey.

2.ConnectmobilephoneandcomputerwiththedefaultMicro-USBcableto

entertheFTMmode.

3.Openthedownloadplatformlefolder ,anddouble-clicktheiconto

startuptheplatform.

4.Maininterfaceofdownloadplatformsoftwareisasfollows.

5.Click[Option→ →

→

PortCong]tosettheport.

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6.Selectthecorrectport,andclickOK.

7.ClickSWDirectorytoselectsoftwarele.

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8.SelectthecorrectsoftwareversionandclickOK.

9.Clicktostartdownload.

10.Downloading.

11.Downloadsuccessfully.

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--Endofsteps.--

3.5ExportDownloadInformationFile

Prerequisite

�Youcanexportdownloadinformationleaftersuccessfulsoftwaredown-

load.

�AlldownloadinformationwillbedeletedafteryouexportSDIle.There-

fore,westronglyrecommendthatyouexportCSVlebeforeSDIle.

Steps

1.ClickCSVtoexportcsvle.

2.SelectthesavingdirectoryandclickSave.

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3.Savesuccessfully,clickOK.

4.ClickSDItoexportSDIle.

5.SelectthesavingdirectoryandclickSave.

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ZTE V-790, V790 Owner's manual

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