Z520 Service guide - Acer Inc. · PDF filePage 1/78 Z520 Service guide ... 1.1 Overview Z520 support GSM/WCDMA/HSDPA，which equipped with Android 4 ... Troubleshooting. 1.2 Introduction

Acer SERVICE GUIDE Page : 1/77 Language :English Date : 2015-02-26

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Z520

Service guide

Category of technical document: Instruction book

version：A

Date：2015-02-26

Document No：Z520


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1. General Characteristics

1.1 Overview

Z520 support GSM/WCDMA/HSDPA，which equipped with Android 4.4 OS. Z520 Main board

has rich multimedia functions including TFT display, CTP, MMS,64 polyphonies, multimedia playback,

FM, stereo earphone , Bluetooth, Wifi, mic, GPS, and USB connection, support motion sensor,

camera, micro SD ,dual SIM card or single SIM, MIPI LCD, Capacitive Touch Panel, etc. business

card-shaped phone manager, clock/alarm clock, calculator ,senor games and other practical

Applications.

This document involved key components description, electrical characteristics and

Troubleshooting.

1.2 Introduction to Main Functions

System functional characteristics:

HSPA/WCDMA:900MHz(B8)/2100MHz(B1)/850MHz(B5)/1900MHz(B2)/GSM/GPRS/

EDGE: 850MHz / 900MHz / 1800MHz / 1900MHz (TBD);

5.0” TFT LCD,HD(800X480);

Multipoint Capacitive Touch Panel;

8Gb DDR +8GB EMMC；

3.5’’ Audio Jack and Loud speaker;

Main Camera 8M(AF) ; Front 2M(FF);

Support G sensor;

Support GPS、BT、FM、WIFI;

Support Fuel gauge;

Android 4.4 OS，Support third-party software extensions.

1.3 Technical Indicators

1.3.1 Performance Indicators

Normal operating condition:-10℃~55℃;

Storage temperature:-10℃~60℃;

Relative humidity:10%～95%;

Receiving sensitivity:≤-105dBm;

Standby time:350~450hr ;

Battery capacity:2000mAh;

Transmitting power:2W/1W;

Power supply voltage:3.4-4.35V;

MP3 playing duration:10~15hr(with Audio Jack);

Video playing duration: about 3~4hr;

Conversation duration: 6~8hr.


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1.3.2 Power Consumption Indicators

Standby current of motherboard: < 5mA；

Conversation current: 2G<300mA;3G<600mA;

Shutdown current:<150uA;

Dial-in vibration:<400mA;

Dial-in ring tone:<500mA;

Dial-in vibration + ring tone:<550mA;

Short message service:<150mA;

MP3 playing: maximum volume < 40mA(with Audio Jack);


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2. Quick Spec

Operating System Android 4.4 Kitkat Compliant

UI Version Acer Shell UI & APP (comply with Acer latest FCS model on MTK platform)

Compliant

Processor MT6582M Quad-core;1.3GHz Compliant

Memory ROM 8GB eMMC + RAM 1GB Compliant

Display 5” TFT LCD Resolution: FWVGA 480 x 854 Color: 16.7M Brightness: up to 350 nits (with Touch panel)

Compliant Compliant Compliant Compliant

Touch Touch Lens: G/F Type Cover Surface Hardness: 7H (Without Anti-Finger print Coating) Capacitive, Two Point True Touch at least

Compliant Compliant Compliant

Dimension 143.5*73.8*10.3mm Compliant

Weight Under 150g Compliant

Radio MEDIATEK MT6166 HSPA/WCDMA: EU 900MHz / 2100MHz (also needs US 850MHz / 1900MHz, 900MHz/1900MHz,850MHz/2100 MHz SKU support) GSM/GPRS/EDGE: 850MHz / 900MHz / 1800MHz / 1900MHz HSDPA up to 21Mbps , HSUPA up to 5.6Mbps GPRS Class 12 /EDGE Class 12 MMS, SMS, Email, IM

Compliant Compliant Compliant Compliant Compliant Compliant

AWS band layout reserved

Yes Compliant

AU Band (850/2100) layout reserved

Yes Compliant

Connectivity

Wireless LAN IEEE 802.11b/g/n (support WAPI in China SKU only)

Compliant

GPS Yes, with A-GPS support and SUPL Compliant

Bluetooth Bluetooth® 4.0 with EDR (Comply with BT3.0 & High speed)

Compliant

FM Yes Compliant

Micro-SD slot Yes, up to 32GB, SDHC 2.0 Compliant

Micro-USB Yes Compliant

Audio output 3.5mm standard audio jack Compliant

HDMI No Compliant

OTG No Compliant

Acer Clear.Fi No Compliant

Camera Main Yes Compliant

Front Yes Compliant

Voice

Microphone Single Compliant

Echo Cancellation Yes Compliant

WB-AMR No Compliant


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Audio

Dolby Mobile No Compliant

DTS Yes Compliant

Speaker Single Speaker (106dBphon within 5cm distance)

Not Compliant

Ergonomic Design

1. Capacitive, single touch function with gesture 2. Function Buttons :

Front: Capacitive touch key : Back, Home, Task 3. Side keys:

Power key with Volume Up/Down key on the side Rapid key on the back side

Compliant Compliant Compliant Compliant

LED Indication

One LED (Red / Green/ Blue Color)

No Not Compliant Not Compliant

Indicator scenario: Charging / Missed Call / Voice Mail / New Message / Low Battery

No

Sensors

Ambient Light-sensor

No (Reserved) Compliant

G-sensor Yes Compliant

E-Compass No Compliant

Proximity Sensor Yes Compliant

Optical-sensor Yes Compliant

Hall-sensor Yes Compliant

NFC No Compliant

Dual SIM slot 1 Normal SIM(3G/2G) and 1 Micro SIM(2G) Single Normal SIM(3G/2G) SKU support

Compliant Compliant

Text Entry Google virtual keyboard Compliant

Messaging

Universal inbox SMS, MMS, Compliant

Email Gmail Compliant

IM Hangouts Compliant

Web Browser Android Browser, Chrome Browser Compliant

Search Google Search Compliant

Entertainment

Video, Music Google Default Compliant

Music streaming Acer Music Compliant

Video streaming YouTube Compliant

Social network Facebook Compliant

Productivity

Push mail Gmail Compliant

Cloud sync Acer Cloud Compliant

Office No Compliant

Location-based Services

A-GPS Satellite Data Update Compliant

Maps & directions Google Maps, Latitude, Street View Compliant

Online App. Store Google play store Compliant

RCSE No Compliant

Power Voltage range/frequency: 100 ~ 240V AC, 50/60 Hz DC output: 5V/1.0A

Compliant Compliant


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Battery Rechargeable/ Replaceable Li-ion Battery Capacity: Typ. 2000 mAh ,4.2V 2G Stand-by > 200 hours (TBD) 2G Talk Time > 4 hours (TBD) 3G Stand-by > 200 hours (TBD) 3G Talk Time > 3hours (TBD) Quick Charge: 60% in 1 hour.

Compliant Compliant Compliant Compliant Compliant Compliant Not Compliant

Packing List Device, AC adaptor, USB cable , quick start guide, warranty card, safety leaflet, TP protection film.

Compliant

Optional Accessories

2nd

Battery cover with flip Compliant

Certification

EU SKU : NCC / CE / GCF / GCF OTA / BQB / WiFi logo / WHQL / CTS / Battery : BSMI China SKU : CTA / Battery : GB/T 18287-2000 US SKU : FCC / CTIA OTA / WIFI OTA CA SKU:IC

Compliant

HAC No Compliant

Green Design

Must Comply with Acer 707-0008-V5 Guidance of Restricted Substances procedure

Compliant

RoHS/WEEE Yes Compliant

PVC Free No Compliant

Halogens Free No Compliant


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3. Description about Circuit

Block Diagram of Operating Principle

The system architecture of Z520 is illustrated in Figure 3-1:

Figure 3-1 System architecture of Z520


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4. ID


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TP Front Cover


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Volume Up key

Volume Down Key

Power Key

Back Cover


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Camera Lens

Battery Cover

Acer Logo

Flash

Audio Jack USB IO Port


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5. USB Driver Installation driver package: SP_Drivers_v folder

connect phone to pc with USB cable before install driver.see the below, will show no installed equipment

"MT65xx Preloader"

Select other equipments ->MT65xx Preloader, right click it and select "更新驱动程序软件"

click"浏览"button，select driver folder and driver file path


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click"确定"， according to the prompt to install

After install finished, see the below：


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6. Run “SPMultiPortFlashDownloadProject” The tool doesn't need to install, open tool package and then only need double click

“SPMultiPortFlashDownloadProject.exe” to run it

The UI is below：

Firmware Update(backup parameter)


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7. Configure SPMultiPortFlashDownloadProject.exe Select File->Open Download Agent File, pop up the following dialog

select "MTK_AllInOne_DA.bin", import the file to "DA file name" bar，see the below：


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click "Scatter File" button，select Scatter.txt from software package.

see the below：

select file"MT6582_Android_scatter.txt"，import the file to "Scatter File" bar，see the below：


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auto scan port：click ，plug in battery，press volume upper，then connect usb cable，can

auto scan port：


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see the above picture, it show that port is scanned successfully，after this port is canned, connect phone with

other ports.

note: please don't connect multi ports，only can scan a port after finished scanning a port

1） update process

click "Start all" or "Start" button，connect phone with usb cable

Download DA

Format


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Download software

After the completion of the upgrade, see the below:


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8. Rewrite Unit S/N to Device

The below is the procedure to rewrite unit S/N into the device after replacing another MB for unit repair . It is required to perform Rewrite unit S/N when the repair action includes replacing MB.

1) Tools setting

A. Double click "MTKWriteNumber" to open the tool

B. Select Station="write barcode", ComPort="USB VCOM"


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C. Click "Config", select setting "test setting"

D. Click "Mode Database" & "Ap database", select Database for Z520.


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E. Click Barcode, input "PCBSNLength=22", click "Save" to complete

F. Restart tool.

2) Write SN A. Click "start", input SN. (SN must be 22 digits) Knock"Enter".


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B. Insert micro USB to mobile phone, then start write SN.

C. If write SN pass, tool will appear "Pass".


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9. SD card download guide

Attention: there are two kinds of SD card download, select "update-*****-sds.zip"

will delete the user data, select "update-*****.zip" will not

1) Copy update*****.zip to the SD card, then insert the SD card to mobile phone.

2) Press and hold the "down volume key", then press the "power key" till going

into “recovery mode”, Press "down volume key" to select "Recovery mode",

Press "up volume key" to into Recovery Mode.

3) Press "volume_up" and "volume_down" to select item "apply update form

sdcard", Press "power key" to enter sdcard/


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4) Press "volume_up" and "volume_down" to select item "update*****.zip", Press

"power key" to update.

5) Update process.

6) Update complete, Press "volume_up_key" and "volume_down_key" to select

item "reboot system now", Press "power key" to restart mobile phone.


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Common causes of failure to upgrade:

A. Use wrong files to upgrade, for example, use others models software. Measures: use

correct files.

B. When copy original files from computer to SD card, anti-virus software maybe break

some internal files or SD card is defective, lead to upgrade package copied be different

from the original package , use tool for contrasting or contrast md5 can recognise ,

verifying files failure in the process of upgrading lead to upgrade failure.

Measures: delete the software package in the SD card, recopy again to try or change another

SD card, copy original package again to retry.


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10. Assemble and Disassemble

10.1 Dismantling machine tools：The screwdriver,tweezers,teardown piece

10.2 Disassembly steps: ① Take the battery cover：From the bottom of the battery cover from mobile phone；


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② Take out the 14 screws around the rear housing(marked in red circle )

③ Insert the pry bar(or disassemble chip)to the bottom gap of rear housing and front housing, then

pry off all the housing hook around the cellphone, then separate the rear housing and front housing；


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④ Opening rear camera connector；Remove the rear Camera,take care to avoid damage of FPC;

⑤ Separation of all the connectors and key FPC,vibrator :

A、Use tweezers to ZIF connectors apart on the main board，location see

below the red block diagram；

B、Use the tweezers from front cover open dismount and speakers，ocation

see below the yellow block diagram；


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⑥ Separation of side key and antenna bracket：

A.Use tweezers with front cover side key FPC separation

B.Separate the antenna bracket on the front cover,Pay attention to the

direction of disassembly,see below the blue arrow；

Remark: to avoid the side key FPC being

damaged when disassembling, pls

follow below steps:

1 、 insert the tweezers point from

bottom side of FPC, to make its bottom

side separate from front housing ;

2、then insert the tweezers point from

topside , to make its top side separate

from front housing；

3、use tweezers to take out the FPC from

the slot slowly


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⑦ Separation of the mainboard：Separate the motherboard on the front

cover，Pay attention to the main board and conductive adhesive between

the front cover；

⑧ Separate the antenna board and the receiver:Can antenna board be used

from the front Cover on separation, pay attention to the small plate

under the conductive adhesive,location see below the red block diagram；


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⑨ Separation the front camera and the coaxial line：1.The front camera

with the coaxial line from the motherboard，location see below the red

block diagram；

⑩ Separation side key and the GPS/WIFI/BT 3in1 antenna:The side key

shell component separation once upon a time, with the 3in1 antenna

location see below the red block diagram；


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⑪ With heat gun first heated the drive label (temperature is set in 90-

95 ℃), the drive label in the corner of cock with anti-static tweezers,

then remove the drive label on the front housing components.

⑫ After dismantling the picture：


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a. With heat gun first heated the TP (temperature is set in 90-95 ℃),

remove the TP.

b. Heating LCM border, the heating temperature is set in 90-95 ℃, using

teardown bar at the bottom of the shell before LCM teardown the LCM jacking,

and use up LCM is separated from former shell, remove the LCM.

Red circles for LCM remove the hole

Before the shell component after heating, use up to separate TP with the shell

After the separation

of state

After the separation

of state


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11. Test ways and steps

Power on test

A. Insert MicroSIM1 card, MicroSIM2 card, and T-flash card into the mobile phone.

B. Insert Battery into the mobile phone and cover the Battery cover.

C. Press power-on key until LCD display, wait the mobile phone power on.


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Calling test

A. Click “dial” key, and dial 10086 to check whether out-calling is ok or not, check whether the

voice from Receiver is clear or not;

B. Click SPK icon, check whether the voice from SPK is clear or not;


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CIT test

A. Enter Engineering Mode and start testing.

Step1: Input “*#*#66#*#*” to enter Engineering Mode test.

Step2: Select "Single item test" into Single item test mode..


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B. Keypad test.

Click on the "key", when to press a button, mobile phone received the signal, the LCD on the

corresponding button icon, at the same time check button flexibility are in good condition.After

testing by the LCD will display the green Pass.Click on the "Success", into a single test menu.

C. Backlight test.

Click on "Backlight" into the Backlight test, click on the "Cycle test", the LCD backlight

brightness by 0.5 seconds frequency increasing step by step, the software adopts three levels of

brightness test cycles.Check whether the mobile phone is increasing brightness change step by

step, if it is said the test is successful, click on the "success" returns a single test menu.


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D. Touch panel test

Click on the "Touch panel", click on the "Crossed calibration”，his fingers on the blue wire

frame line drawing, line drawing through the display for the red box body, a green line, if the test

pass, click on the "success" returns a single test menu

E. T-Flash test

Click on the "T-flash", the test can identify whether the memory card, if the normal function of

memory card shows green "T-flash is ok", or display memory card test to fail. click "Success", cell

phone will enter a single test menu


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F. Bluetooth test

click on the "Bluetooth", the phone automatically open bluetooth, and search for bluetooth

devices.Search to the perimeter of the bluetooth devices, mobile phones will display a search to

the bluetooth device, click on the "success", the phone will enter the individual test menu.

G. Sim card test

Test SIM card can identify, if the normal function of SIM card shows green "SIM: exist", click

"Back", cell phone will enter a single test menu.


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H. Vibrator test

Click on the "Vibrator", the motor vibration, if the motor vibration test ok. click on the

"success", the phone will enter the individual test menu.

I. RTC test.

Click the “RTC”,mobile phone automatically RTC test, test ok, mobile phone displays" pass ",

click "Success", cell phone will enter a single test menu.


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J. Speaker test

Click on the "Speaker", mobile will play music through the speaker, if test ok,click "Success",

cell phone will enter a single test menu.

K. Receiver test

Click on the "Receiver", mobile will play music through the receiver, if test ok,click "Success",



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L. Headset test

① Click on the "Headset", insert headset to mobile, it will appear "Headset Visibility: pass"

② Click "start Test",mobile will play music through the headset, if test ok, click "play

success",then it will appear "Audio test: pass"


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③ Click "LP start",Say“123” to handset mic, you can hear the voice out of from headset.

if test ok, click "LP ok",then it will appear "Loop Back: pass"

④ Press HOOK key, if test ok, it will appear "headset HOOK key test: pass" and "test

result:pass",click "Back", cell phone will enter a single test menu.


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M. FM test

Click on the "FM", select the default frequency of testing, and the headset will voice out, click on

the "success", cell phone will enter a single test menu.

N. Camera test

Click on the "Camera",enter the Camera test interface


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① Front Camera test：

Click the“Front Camera”, mobile phone automatically into the Front view Camera

interface，click

the icon“ ” to take pictures，if test ok，click on the "Success",enter the Camera test

interface.

② Rear Camera test：

Click the“Rear Camera”, mobile phone automatically into the Rear view Camera interface，

click

the icon“ ”to take pictures，if test ok，click on the "Success",enter the Camera test

interface.


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③ Flashlight test：

Click the“Flashlight”, mobile phone automatically open the flash，if test ok，click on the

"Success",enter the Camera test interface.

④ Click "Back", cell phone will enter a single test menu.


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O. Battery test.

Click on the "battery", cell phone will be prompted to "please insert the USB cable", after being

inserted into the USB cable, you will be prompted had "USB cable is plugged in", and the

automatic test and display the test results, if test ok, click on the "Success", cell phone will

enter a single test menu.

P. WLAN test.

Click on "WLAN" into the WIFI testing interface, mobile phone will automatically search the

surrounding available WIFI signal, and the SSID number displayed.if test ok, click "Success",



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Q. Torch Test：

Click on the "Torch" into the torch test, click on the "open", open the torch, check whether or

not the torch lit properly, click on the "close", close the torch, if test ok, click "Success", cell

phone will enter a single test menu.

R. Loop back test.

Click on the "Loopback" into the loopback test,click "start", Say “123” close to Phone Mic, you

can hear the voice out of from receiver.if test ok, click "Success", cell phone will enter a single

test menu.


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S. LCD test.

Click on the "LCD", screen will display in turn: red, black, white, yellow, blue, green, and black

and white stripes, check the screen color brightness even, black spots, bright spot, color,

shadow, as well as the black block.Show clear, no color points, white and black spots (block),

dark...Undesirable phenomenon.if test ok, click "Success", cell phone will enter a single test

menu.


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T. GPS test.

Click on the "GPS"into the GPS test.Click “Open GPS”,mobile can search secondary planet signal automatic, if test ok, it will appear "stallite ID" and "stallite signals". click "Success", cell phone will enter a single test menu.

U. G_sensor test.

Click on the "G_sensor"into the G_sensor test. There are three directions for mobile put on.If

test ok, mobile appear "X pass" "Y pass" and "Z pass", click "Success", cell phone will enter a single

test menu.

Direction


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V. Proximity Sensor test

Click on the "Proximity Sensor" into the Proximity Sensor test.Keep out and release the Proximity

Sensor, mobile phone displays Far away and Nearly。Test ok,click "Success", cell phone will

enter a single test menu.

W. Optical Sensor test

Click on the "Optical Sensor" into the Optical Sensor test.Different Optical Sensor receives the

light ray, numerical value will change accordingly, and change color.Test ok,click "Success", cell

phone will enter a single test menu.


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X. Web Link test

① Click on the “Back”, to return to the engineering mode.

② Click on the “Web link” into the wed link test.


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③ Click "Set Link AP", select the test AP, the status is "connected",click "Back key" for back

precede interface.

④ Setup website address or IP address,click "Run ping test", it will appear "ping IpAddr:pass",

if test ok, click "Success" for back.


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12. Calibration sensor

12.1 G-Sensor calibration

1) Press and hold the "up volume key", then press the "power key" more than 4s,the device will power on and enter Factory Mode.

2) Press volume down key to select "sensor 测试". Press "home" key to into

“sensor 测试”interface.Press volume down key to select "单项测试",press

“home key into “单项测试”interface.


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3) Select“加速度传感器校准”and then press the home key into“加速度传

感器校准”interface.


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4) Take the device put on the desk flatly,select "开始校准",and then press the

home key to confirm.

Notes: Don`t touch the screen with anything when calibrating.

5) if calibration pass,device will appear "calibration Pass",press "back" key for back.


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6) Select“距离传感器校准”and then press the home key into“距离传感器

校准”interface.

7) Take the device put on the desk flatly,select "开始校准",and then press the

home key to confirm.

Notes:

A：Don`t touch the screen with anything when calibrating.

B：Please keep the cell phone is no obstructions above 40(cm)scope.


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8) if calibration pass, device will appear "calibration Pass",press "back" key for back.

9) Press the "Volume Down" key select "关机", then press the "home key" to

power off. Sensor calibration complete


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13. Exploded View


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Item Part name Q'ty

1 CTP_ASM 1

2 LCD 1

3 Front housing ASM 1

4 P-sensor Rubber 1

5 Receiver 1

6 Main PCBA 1

7 Waterproof paster 1

8 Main camera 1

9 FH-Cam-Sensor-BB-FPC 1

10 LTR_Sponge 1

11 Cable Line 1

12 Sub PCB_ASM 1

13 Shielding_cond_Tape 1

14 Side_key FPC 1

15 Main Antenna 1

16 Rear housing ASM 1

17 Screw 14

18 GPS_ANT 1

19 Camera Lens 1

20 Battery 1

21 Side Key 1

22 Battery Cover 1


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14. Device Label

Z520 Label For Handset- Protect Tape for LCM


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Z520 Label for Device Label Certification Logo Size

Coded instructions:

Notes:

To EU Band(UMTS 900/2100MHz)-Please use the CE logo

To US Band(UMTS850/1900MHz)-Please use the FCC logo


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15. FRU list

Accessory Description WT PN Acer PN

Battery 711700301011 KT.00104.002

Adapter

UK:701802700421

US:701802700431

EU:701802700441

BR:701802700451

AU:711811100011

CN:711810100021

IN:711810100031

UK:KP.0050A.001

US:KP.0050A.002

EU:KP.0050A.003

BR:KP.0050A.004

AU:KP.0050A.005

CN:KP.0050A.006

IN:KP.0050A.007

USB cable 711310000091 HC.70211.048

Earphone 711410000051 HC.00111.008

LCD MODULE Black:712608000431

White:712608000461

Black:6M.HLWH9.001

White:6M.HLTH9.001


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Rear cover

DUAL SIM SILVER REAR

COVER ASSEMBLY (The

receiver network of

black):

712608000451

SINGLE SIM SILVER

REAR COVER ASSEMBLY

(The receiver network

of silver):

712608000471


COVER ASSEMBLY (The

receiver network of

silver):

712608000481


COVER ASSEMBLY (The

receiver network of

black):

60.HLWH9.001

SINGLE SIM SILVER

REAR COVER ASSEMBLY

(The receiver network

of silver):

60.HLTH9.001


COVER ASSEMBLY (The

receiver network of

silver):

60.HLWH9.002

Battery cover Black：711500301331

White：711500301341

Black:60.HLWH9.003

White:60.HLTH9.002

Side volume

key 711200301021 42.HLWH9.001

GPS Antenna 711100150021 60.HLWH9.005

GSM Antenna

900/2100：

711100150031

850/1900：

711100150041

900/2100:60.HLUH9.001

850/1900:60.HLWH9.006


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Screw*14 700901200301 86.HFEH9.002

Sub PCBA

900/2100：

710000301051

850/1900：

710000150011

900/2100：

55.HLUH9.001

850/1900：

55.HLWH9.001

RF CABLE 712602000101 50.HLWH9.001

PBCA

Dual SIM-

2100/900(8+1):

713200150031

Dual SIM

+2100/850(8+1):

713200150051

SINGLE SIM-

900/2100(8+1):

713200150061

SINGLE SIM

850/1900(8+1):

713200150071

Dual SIM-

2100/900(16+2):

713200150081

Dual SIM-850-

1900(16+2):

713200150091

Dual SIM-

2100/900(8+1):

HB.70511.063

Dual SIM

+2100/850(8+1):

HB.70511.065

SINGLE SIM-

900/2100(8+1):

HB.70511.064

SINGLE SIM

850/1900(8+1):

HB.70511.066

Rear Camera 710200150021 KR.08M0S.001


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Front Camera 710200301021 KR.02M0F.002

Receiver 710412100091 60.HLWH9.007

FOAM-CONDUCTIVE

712400150021 47.HLWH9.003

FOAM-P

SENSOR 712400150011 47.HLWH9.004

RUBBER 711200301031 47.HLWH9.001

Camera lens 711900150011 60.HLWH9.004

Water Sensitive

Label 702703802391

Avoid Disassemble Label

702703802831


Page 78/78

DEVICE LABEL EU:712700301011

US:712700150041

EU:47.HLUH9.001

US:47.HLWH9.002

Side key FPC 713300301011 50.HLWH9.002

Documents

Z520 Service guide - Acer Inc. · PDF filePage 1/78 Z520 Service guide ... 1.1 Overview Z520 support GSM/WCDMA/HSDPA，which equipped with Android 4 ... Troubleshooting. 1.2 Introduction