LG E977 Service Manual

Internal Use Only

Service Manual

LG-E977

Date: March, 2013 / Issue 1.0

Table Of Contents

1. INTRODUCTION ..................................................................... 3

1.1 Purpose ........................................................................................................3

1.2 Regulatory Information .........................................................................3

2. PERFORMANCE ...................................................................... 5

2.1 Product Name ............................................................................................5

2.2 Supporting Standard ..............................................................................5

2.3 Main Parts : GSM Solution .....................................................................5

2.4 HW Features ...............................................................................................6

2.5 SW Features ............................................................................................. 11

2.6 HW SPEC. ................................................................................................. 14

3. CIC_AND SERVICE CENTER ................................................. 23

3.1 CIC FAQ ...................................................................................................... 23

4. TROUBLE SHOOTING .......................................................... 41

4.1 RF Component .......................................................................................41

4.2 SIGNAL PATH ........................................................................................... 44

4.3 Checking XO Block ................................................................................ 47

4.4 Checking FEMiD (GSM, WCDMA B1/B2/B5) Block ................... 50

4.5 Checking WCDMA Block ....................................................................52

4.6 Checking GSM Block ............................................................................ 80

4.7 Checking LTE Block ...............................................................................90

4.8 GPS/WIFI/BT Module ..........................................................................112

4.8 GPS/WIFI/BT SIGNAL PATH ..............................................................114

4.10 Checking GPS/WIFI/BT....................................................................115

4.11 Audio troubleshooting ...................................................................121

4.12 13M AF Camera Trouble Shooting .............................................129

4.13 1.3M front Camera Trouble Shooting .......................................132

4.14 Camera Flash Trouble Shooting ..................................................134

4.15 Main LCD trouble ..............................................................................136

4.16 Touch trouble .....................................................................................139

4.17 Vibrator Troubleshooting ..............................................................141

4.18 Gyro Sensor troubleshooting ......................................................144

4.19 Compass sensor troubleshooting ..............................................146

4.20 Proximity Sensor on/o trouble .................................................149

4.21 Light Sensor on/o trouble ..........................................................151

4.22 Pressure Sensor troubleshooting ...............................................152

4.23 Power ON Troubleshooting ..........................................................154

4.24 Charging Troubleshooting ............................................................159

4.25.USB Trouble shooting .....................................................................160

4.26 HDMI Troubleshooting ...................................................................164

5. DOWNLOAD .......................................................................165

6. BLOCK DIAGRAM ...............................................................185

7. CIRCUIT DIAGRAM ............................................................197

8. BGA PIN MAP ....................................................................216

9. PCB LAYOUT .......................................................................227

10. CALIBRATION ...................................................................237

11. HIDDEN MENU .................................................................257

12. Guide to............................................................................272

12.1 Guide to apply label,approval .....................................................272

12.2 Guide to read IMEI by IMEI reader ..............................................273

12.3 Guide to disassemble ......................................................................275

13. EXPLODED VIEW & REPLACEMENT PART LIST .............281

13.1 EXPLODED VIEW ................................................................................281

13.2 Replacement Parts ...........................................................................282

13.3 Accessory .............................................................................................331

LGE Internal Use Only

- 2 -

Only for training and service purposes

1. INTRODUCTION

1.1 Purpose

1. INTRODUCTION

This manual provides the information necessary to repair, calibration, description and download the features of

this model.

1.2 Regulatory Information

A. Security

Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for example, persons

other than your company’s employees, agents, subcontractors, or person working on your company’s behalf)

can result in substantial additional charges for your telecommunications services.

System users are responsible for the security of own system. There are may be risks of toll fraud associated with

your telecommunications system. System users are responsible for programming and configuring the

equipment to prevent unauthorized use. The manufacturer does not warrant that this product is immune from

the above case but will prevent unauthorized use of common carrier telecommunication service of facilities

accessed through or connected to it. The manufacturer will not be responsible for any charges that result from

such unauthorized use.

B. Incidence of Harm

If a telephone company determines that the equipment provided to customer is faulty and possibly causing

harm or interruption in service to the telephone network, it should disconnect telephone service until repair can

be done. A telephone company may temporarily disconnect service as long as repair is not done.

C. Changes in Service

A local telephone company may make changes in its communications facilities or procedure. If these changes

could reasonably be expected to affect the use of the phones or compatibility with the net work, the telephone

company is required to give advanced written notice to the user, allowing the user to take appropriate steps to

maintain telephone service.

D. Maintenance Limitations

Maintenance limitations on the phones must be performed only by the manufacturer or its authorized agent.

The user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note

that unauthorized alternations or repair may affect the regulatory status of the system and may void any

remaining warranty.

LGE Internal Use Only

- 3 -

Only for training and service purposes

1. INTRODUCTION

E. Notice of Radiated Emissions

This model complies with rules regarding radiation and radio frequency emission as defined by local regulatory

agencies. In accordance with these agencies, you may be required to provide information such as the following

to the end user.

F. Pictures

The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly different.

G. Interference and Attenuation

A phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from

unsuppressed engines or electric motors may cause problems.

H. Electrostatic Sensitive Devices

ATTENTION

Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign.

Following information is ESD handling:

• Service personnel should ground themselves by using a wrist strap when exchange system boards. • When

repairs are made to a system board, they should spread the floor with anti-static mat which is also grounded.

• Use a suitable, grounded soldering iron. • Keep sensitive parts in these protective packages until these are used.

• When returning system boards or parts like EEPROM to the factory, use the protective package as described.

LGE Internal Use Only

- 4 -

Only for training and service purposes

2.1 Product Name

LG-E977 : WCDMA 850/1900/2100+GSM850/EGSM/DCS/PCS, LTE B7, 17

(HSUPA 5.8Mbps(cat6)/HSPA+ 42Mbps(cat24)/GPRS Class12/EDGE Class12)

2.2 Supporting Standard

2. PERFORMANCE

2.1 Product Name

LG-E977 : WCDMA 850/1900/2100+GSM850/EGSM/DCS/PCS, LTE B7, 17

(HSUPA 5.8Mbps(cat6)/HSPA+ 42Mbps(cat24)/GPRS Class12/EDGE Class12)

2.2 Supporting Standard

Item Feature Comment

Supporting Standard WCDMA(FDD1,2,5)/EGSM/GSM850/DCS1800/PCS1900

with seamless handover

2. PERFORMANCE

Phase 2+(include AMR)

SIM Toolkit : Class 1, 2, 3, C-E

Frequency Range

Application Standard

WCDMA(FDD1) TX : 1920 – 1980 MHz WCDMA(FDD1) RX : 2110 – 2170 MHz WCDMA(FDD2) TX : 1850 – 1910 MHz WCDMA(FDD2) RX : 1930 – 1990 MHz

WCDMA(FDD5) TX : 824 – 849 MHz WCDMA(FDD5) RX : 869 – 894 MHz

EGSM TX : 880 – 915 MHz

EGSM RX : 925 – 960 MHz GSM850 TX : 824 – 849 MHz GSM850 RX : 869 – 894 MHz

GSM900 TX : 880 – 915 MHz

GSM900 RX : 925 – 960 MHz DCS1800 TX : 1710 – 1785 MHz DCS1800 RX : 1805 – 1880 MHz

PCS1900 TX : 1850 – 1910 MHz PCS1900 RX : 1930 – 1990 MHz LTE Band7 TX : 2500 – 2570 MHz LTE Band7 RX : 2620 – 2690 MHz

LTE Band17 TX : 704 – 716 MHz LTE Band17 RX : 734 – 746 MHz

2.3 Main Parts : GSM Solution

Item Part Name Comment

AP Chip APQ8064 : Qualcomm

CP Chip MDM9215M : Qualcomm

RF Chip WTR1605L : Qualcomm

LGE Internal Use Only

- 5 -

Only for training and service purposes

2.4 HW Features

Item Feature Comment

Form Factor DOP type

1) Capacity

2. PERFORMANCE

Battery

Size

Weight 141 g (TBD) With Battery

PCB Full Layer type, 12 Layers , 0.65t

Stand by time

Charging time 3 hrs. 15mins

Talk time

Standard : Li-Ion Polymer, 2100mAh

2) Packing Type : Soft Pack

Standard :

131.9 x 68.9 x 8.45 mm

2G Up to 460 hrs

3G Up to 420 hrs

2G Up to 10 hrs. 45mins

3G Up to 12 hrs. 40mins

WCDMA(FDD1) : -106.7 dBm

WCDMA(FDD2) : -106.7 dBm

@ Paging Period 5 (2G)

@ DRX 7 (3G)

@ Power Off /

2100mAh

@ Tx=Max(2G)

@ Tx = 12dBm (3G)

RX sensitivity

TX output power

LGE Internal Use Only

WCDMA(FDD5) : -106.7 dBm

EGSM : -105 dBm

GSM850 : -105 dBm

DCS 1800 : -105 dBm

PCS 1900 : -105 dBm

LTE : - 97dBm

WCDMA/

GSM/

LTE/

GPRS

- 6 -

WCDMA :

23dBm/3.84MHz,+1/-

3dBm

EGSM : 33dBm GSM850 : 33 dBm DCS1800 : 30dBm

PCS 1900: 29.5 dBm

LTE : 23dBm

Only for training and service purposes

GPRS

compatibility

EDGE

2. PERFORMANCE

Class3(WCDMA)

EGSM : 27 dBm

Class4 (EGSM)

GSM850 :27dBm

Class4 (GSM850)

DCS 1800 : 26 dBm

Class1 (PCS)

PCS 1900 : 26 dBm

Class1 (DCS)

GPRS

E2 (GSM850/GSM900)

Class 12

E2 (DCS/PCS)

EDGE compatibility EDGE Class 12

Plug-In SIM

SIM card type

3.0V /1.8V

Main LCD (HD)

Display

TFT Main LCD(4.67”, 768X1280)

Built-in Camera 13M Camera, 1.3M secondary

Status Indicator YES

Side Key :

Keypad Side Key : 3

Volume up,down,

power key

Main : LDS(Laser Direct Structure) type

ANT

Sub : F-PCB Type

NFC : Attached Battery cover

System connector 5 Pin Micro USB 2.0 HS

Ear Phone Jack 3.5Phi, 4 Pole, Stereo

PC synchronization Yes

eMMC : 32GB

Memory(AP)

LP-DDR2 : 16GB

Speech coding FR, HR, EFR HR/FR,AMR HR/ FR, SAIC

Data & Fax Built in Data & Fax support

Vibrator Built in Vibrator

BlueTooth V4.0 BLE (BT Low Energy)

MIDI(for Buzzer SW Decoded 72Poly

LGE Internal Use Only

- 7 -

Only for training and service purposes

Function)

MP3/WMA/AAC/MIDI/EAAC+/AAC+/3GPP/MIDI/

Music Player

AMR/MMF/MP4/WAV

MPEG4, H.264, H.263 + AMR-NB, WMV7, WMV8,

Video Player

WMV9, DIVX, WVC1

Camcorder MPEG4 or H.263, H.264

Voice Recording Yes

Speaker Phone mode

Yes

Support

2. PERFORMANCE

Travel Adapter Yes

CDROM No

Stereo Headset Yes

Data Cable Yes

T-Flash

NO

(External Memory)

1) RSSI Display

Cell power(dBm) GSM WCDMA LTE Comment

Bar 5->4 -80dBm ±3dBm -78dBm ±3dBm -84dBm ±3dBm

Bar 4->3 -89dBm ±3dBm -87dBm ±3dBm -95dBm ±3dBm

1. Cell Connecteted

Bar 3->2 -98dBm ±3dBm -97dBm ±3dBm -104dBm ±3dBm

Bar 2->1 -104dBm ±3dBm -103dBm ±3dBm -114dBm ±3dBm

& CPICH level = 3.3

2. LTE l RSRP

Bar 1->No

service

No service No service No service

Measure RSSI after 10 seconds if you change power.

LGE Internal Use Only

- 8 -

Only for training and service purposes

2) Charging Time

210 minutes under

3) Travel Charger

Input : 100 ~ 240 V, 50/60 Hz Output : 5.0V, 1200 mA

4) Battery Type

Li-ion Battery Pack, 2100 mAh Standard Voltage : 3.8 V, Battery Full Charge Voltage : 4.35V

5) Current Consumption

2) Charging Time

210 minutes under

3) Travel Charger

Input : 100 ~ 240 V, 50/60 Hz Output : 5.0V, 1200 mA

2. PERFORMANCE

4) Battery Type

Li-ion Battery Pack, 2100 mAh Standard Voltage : 3.8 V, Battery Full Charge Voltage : 4.35V

5) Current Consumption

ITEM

GSM WCDMA LTE

1. Sleep Mode Less than 6 mA 6mA or less 9mA less than

2. Sleep : Ear jack to

connect

3. Standby (Sleep & Idle

current average)

4. BT Connected Standby

Less than 7.5 mA 7.5mA or less 10.5mA or less

9mA Less than @ P.P 5 9mA less than @ DRX 7 11mA or less

10.5mA quiescent

current compared to less

than (less than 1.5mA)

Specification

10.5mA quiescent

12.5mA quiescent

current compared to

current compared to less

less than (less than

than (less than 1.5mA)

1.5mA)

- Max Pwr

5. Talk Mode

6. No SVC Mode 200 mA or less 200 mA or less

7. Power Off Mode 200uA or less 200uA or less 200uA or less

LGE Internal Use Only

GSM LVL 5

400 mA or less @ Avg

- 9 -

600mA or less

@ Avg

- Tx 10dBm

450mA or less LTE Cat2 @

Only for training and service purposes

TX 10dBm

6) Battery Bar

2. PERFORMANCE

Battery Bar

Bar 20(Full) 98% Bar 9 -> Bar 8 43% -> 42%

Bar 20 -> Bar 19 98% -> 97% Bar 8 -> Bar 7 38% -> 37%

Bar 19 -> Bar 18 93% -> 92% Bar 7 -> Bar 6 33% -> 32%

Bar 18 -> Bar 17 88% -> 87% Bar 6 -> Bar 5 28% -> 27%

Bar 17 -> Bar 16 83% -> 82% Bar 5 -> Bar 4 23% -> 22%

Bar 16 -> Bar 15 78% -> 77% Bar 4 -> Bar 3 18% -> 17%

Bar 15 -> Bar 14 73% -> 72% Bar 3 -> Bar 2 13% -> 12%

Bar 14 -> Bar 13 68% -> 67% Bar 2 -> Bar 1 8% -> 7%

Bar 13 -> Bar 12 63% -> 62% Bar 1 -> Bar 0 3% -> 2%

Bar 12 -> Bar 11 58% -> 57% Power off 1%이하

Bar 11 -> Bar 10 53% -> 52% Low battery pop-up 15% , 5%, 0%

Bar 10 -> Bar 9 48% -> 47%

Specification

Battery Bar

Specification

LGE Internal Use Only

- 10 -

Only for training and service purposes

2.5 SW Features

Item Feature Comment

RSSI 1 ~ 5 Levels

2. PERFORMANCE

Battery Charging 0 ~ 7 Levels

Key Volume 0 ~ 7 Level

Audio Volume 0 ~ 15 Level

Time / Date Display Yes

Multi-Language Yes

Quick Access Mode

PC Sync No

Speed Dial Yes Voice mail center -> 1 key

Profile Yes

CLIP / CLIR Yes

Phone Book

Phone / Messaging / Apps / Web /

Camera

Name / Number / Email / Website /

Postal addresses / Organizations /

Groups / Birthday Notes / Ringtone

English, Espanol, Franch, Korea,

Chinese

not same with feature phone

setting

There is no limitation on the

number of items. It depends on

available memory amount.

Last Dial Number Yes

Last Received

Number

Last Missed Number Yes

Search by Number

/ Name

Group Yes

LGE Internal Use Only

Name / Number

Yes

- 11 -

There is no limitation on the

number of items. It depends on

available memory amount..

There is no limitation on the

number of items. It depends on

available memory amount...

There is no limitation on the

number of items. It depends on

available memory amount...

There is no limitation on the

number of items. It depends on

available memory amount.

Only for training and service purposes

Fixed Dial Number Yes

Service Dial Number No

Own Number Yes Read / Write

Voice Memo No Only Support Voice Command

Call Reminder No

Network Selection Automatic

Mute Yes

Call Divert No

Call Barring No

2. PERFORMANCE

Call Charge (AoC) No

Call Duration Yes

There is no limitation on the number

SMS (EMS)

of items. It depends on available

EMS does not support.

memory amount.

SMS Over GPRS No

EMS Melody / Picture No

Send / Receive / Save No

MMS MPEG4

Send / Receive / Save

Yes

Long Message MAX 761 characters SMS 5 concatenated

Cell Broadcast Yes

Download Yes

Game No

Calendar Yes

Memo No

World Clock Yes

Unit Convert No

LGE Internal Use Only

- 12 -

Only for training and service purposes

Stop Watch No

EDGE

Yes

Class 12

Conference Call

Yes

Max. 7

Memo pad

Yes

Wall Paper Yes

2. PERFORMANCE

WAP Browser No

Download Melody /

Wallpaper

Yes Over web browser

WAP stack and wml are not

supported.

SIM Lock Yes Operator Dependent

SIM Toolkit Class 1, 2, 3, C, D

MMS Yes Google MMS Client

EONS Yes

CPHS Yes V4.2

ENS Yes

Camera Yes

8M AF

VT : 1.3 M HD

JAVA No Android do not support JAVA

Voice Dial Yes

IrDa No

Bluetooth Yes Ver. 4.0+LE

FM radio No

GPRS Yes Class 12

Hold / Retrieve Yes

DTMF Yes

TTY Yes

AMR Yes

SyncML No

IM Yes GTalk

Email Yes

LGE Internal Use Only

- 13 -

Only for training and service purposes

2.6 HW SPEC.

1) GSM transceiver specification

2.6 HW SPEC

1) GSM transceiver specication

2. PERFORMANCE

EMC(Radiated Spurious Emission

Transmitter Output power and Burst

Spectrum due to modulation out to

less than 1800kHz offset

Spectrum due to modulation out to

larger than 1800kHz offset to the

edge of the transmit band

Item Specification

Phase Error

Frequency Error

Disturbance)

Timing

Burst Timing <3.69us

Rms : 5°

Peak : 20 °

GSM : 0.1 ppm

DCS/PCS : 0.1 ppm

GSM/DCS : < -28dBm

GSM : 5dBm – 33dBm ± 3dB

DCS/PCS : 0dBm – 30dBm ± 3dB

200kHz : -36dBm

600kHz : -51dBm/-56dBm

GSM :

1800-3000kHz :< -63dBc(-46dBm)

3000kHz-6000kHz : <-65dBc(-46dBm)

6000kHz < : < -71dBc(-46dBm)

DCS :

1800-3000kHz :< -65dBc(-51dBm)

6000kHz < : < -73dBc(-51dBm)

400kHz : -19dBm/-22dBm(5/0), -23dBm

Spectrum due to switching transient

Reference Sensitivity – TCH/FS Class II(RBER) : -105dBm(2.439%)

Usable receiver input level range 0.012(-15 - -40dBm)

Intermodulation rejection – Speech

channels

AM Suppression

- GSM : -31dBm

- DCS : -29dBm

Timing Advance ± 0.5T

LGE Internal Use Only

600kHz : -21dBm/-24dBm(5/0), -26dBm

± 800kHz, ± 1600kHz

: -98dBm/-96dBm (2.439%)

-98dBm/-96dBm (2.439%)

- 14 -

Only for training and service purposes

2) WCDMA transmitter specification

2) WCDMA transmitter specication

Item Specification

2. PERFORMANCE

Band 1 : 1850 ~ 1910 MHz

Transmit Frequency

Maximum Output Power +22.5 dBm / 3.84 MHz, +1 / -3 dB

Frequency Error within ±0.1 PPM

Open Loop Power Control

Minimum Transmit Power < -50 dBm /3.84 MHz

Occupied Bandwidth < 5 MHz at 3.84 Mcps (99% of power)

Adjacent Channel Leakage

Power Ratio (ACLR)

Band2 : 1920 MHz ~ 1980 MHz

Band5 : 824 - 849 MHz

Normal Conditions : within ±9 dB,

Extreme Conditions : within ±12 dB

> 33 dB @ ±5 MHz,

> 43 dB @ ±10 MHz

< -36 dBm / 1 kHz RW @ 9 kHz ≤ f < 150 kHz

< -36 dBm / 10 kHz RW @ 150 KHz ≤ f < 30 MHz

< -36 dBm / 100 kHz RW @ 30 MHz ≤ f < 1 GHz

< -30 dBm / 1 MHz RW @ 1 GHz ≤ f < 12.75 GHz

< -60 dBm / 3.84 MHz RW @ 869 MHz ≤ f ≤ 894 MHz

Spurious Emissions

|f-fc| > 12.5 MHz

Transmit Intermodulation

Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm

Peak Code Domain Error

LGE Internal Use Only

< -60 dBm / 3.84 MHz RW @ 1930 MHz ≤ f ≤ 1900 MHz

< -60 dBm / 3.84 MHz RW @ 2110 MHz ≤ f ≤ 2155 MHz

< -67 dBm / 100 kHz RW @ 925 MHz ≤ f ≤ 935 MHz

< -79 dBm / 100 kHz RW @ 935 MHz < f ≤ 960 GHz

< -71 dBm / 100 kHz RW @ 1805 MHz ≤ f ≤ 1880 MHz

< -41 dBm / 300 kHz RW @ 1884.5 MHz < f < 1919.6 MHz

< -31 dBc @ 5 MHz & < -41 dBc @ 10 MHz

when Interference CW Signal Level = -40 dBc

< -15 dB at Pout ≥ -20 dBm

- 15 -

Only for training and service purposes

3) WCDMA receiver specification

3) WCDMA receiver specication

Item Specification

2. PERFORMANCE

Band1 : 2110 ~ 2170 MHz

Receive Frequency

Reference Sensitivity Level

Maximum Input Level BER < 0.001 when Îor = -25 dBm / 3.84 MHz

Adjacent Channel Selectivity

(ACS)

Blocking Characteristic

Spurious Response

Intermodulation

Band 2 : 1930 ~ 1990 MHz

Band5 :869 ~ 894MHz

Band1 : BER < 0.001 when Îor = -106.7 dBm / 3.84 MHz

Band4 : BER < 0.001 when Îor = -103.7 dBm / 3.84 MHz

ACS > 33 dB where BER < 0.001 when

Îor = -92.7 dBm / 3.84 MHz

& Ioac = –52 dBm / 3.84 MHz @ ±5 MHz

BER < 0.001 when Îor = -103.7 dBm / 3.84 MHz

& Iblocking = -56 dBm / 3.84 MHz @ Fuw(offset) = ±10 MHz

or Iblocking = -44 dBm / 3.84 MHz @ Fuw(offset) = ±15 MHz

BER < 0.001 when Îor = -103.7 dBm / 3.84 MHz

& Iblocking = -44 dBm

BER < 0.001 when Îor= -103.7 dBm / 3.84 MHz

& Iouw1 = -46 dBm @ Fuw1(offset) = ±10 MHz

Spurious Emissions

Inner Loop Power Control

In Uplink

LGE Internal Use Only

& Iouw2 = -46 dBm / 3.84 MHz @ Fuw2(offset) = ±20 MHz

< -57 dBm / 100 kHz BW @ 9 kHz ≤ f < 1 GHz

< -47 dBm / 1 MHz BW @ 1 GHz ≤ f ≤ 12.75 GHz

Adjust output(TPC command)

cmd 1dB 2dB 3dB

+1 +0.4/1.6 +1/3 +1.5/4

0 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5

-1 -0.4/-1.6 -1/-3 -1.5/-4

group(10equal command group)

+1 +8/+12 +16/+24

- 16 -

Only for training and service purposes

4) HSDPA transmitter specification

△

△f-7.5)dBc

4) HSDPA transmitter specication

Item Specification

Transmit Frequency

Maximum Output Power

2. PERFORMANCE

Band1 : 1920 MHz ~ 1980 MHz

Band8 : 880MHz~915 MHz

Sub-Test

1=1/15, 2=12/15 21~25dBm / 3.84 MHz

3=13/15 4=15/8 20~25dBm / 3.84 MHz

5=15/7 6=15/0 19~25dBm / 3.84 MHz

HS-DPCCH

Spectrum Emission Mask

Sub-

test in

table

C.10.1.4

5

Power

step

1

Power step

slot boundary

Start of

Ack/Nack

2 Start of CQI 1 +/- 0.6

Power

step

size, P

Transmitter power step tolerance [dB]

[dB]

6 +/- 2.3

3 Middle of CQI 0 +/- 0.6

4 End of CQI 5 +/- 2.3

Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0

Frequency offset

from carrier

f

Minimum requirement

Measurement

Bandwidth

2.5 ~ 3.5 MHz -35-15×(△f-2.5)dBc 30 kHz

3.5 ~ 7.5 MHz -35-1×(△f-3.5)dBc 1 MHz

7.5 ~ 8.5 MHz -35-10×(

1 MHz

8.5 ~ 12.5 MHz -49dBc 1 MHz

Adjacent Channel

Leakage

Power Ratio (ACLR)

Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0

> 33 dB @ ±5 MHz

> 43 dB @ ±10 MHz

Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm

LGE Internal Use Only

- 17 -

Only for training and service purposes

5) HSDPA receiver specication

5) HSDPA receiver specification

Item Specification

2. PERFORMANCE

Receive Frequency

Maximum Input Level

(BLER or R), 16QAM Only

6) WLAN 802.11b transceiver specication

6) WLAN 802.11b transceiver specification

Item Specification

Transmit Frequency 2400 MHz ~ 2483.5 MHz ( CH1~CH13 )

Tx Power Level ≤ 20dBm under

Frequency Tolerance within ±25 PPM

Chip clock Frequency

Tolerance

Spectrum Mask

Band1 : 2110 ~ 2170 MHz

Band8 : 925 ~ 960Hz

Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0

BLER < 10% or R >= 700kbps

2400 MHz~ 2483.5 MHz (CH1 ~ CH11)

within ±25 PPM

≤ -30 @ fc-22MHz< f <fc-11MHz and fc+11MHz< f <fc+22MHz

≤ -50 @ f < fc-22MHz and f > fc+22MHz

Power ramp on/off time ≤ 2us

Carrier Suppression ≤ -15dB

Modulation Accuracy

(Peak EVM)

< -36 dBm @ 30MHz ~ 1GHz

Spurious Emissions

Rx Min input Sensitivity ≤ -85dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8%

Rx Max input Sensitivity ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8%

Rx Adjacent Channel

Rejection

interference input signal -70dBm@fc±25MHz(11Mbps)

< -30 dBm above @ 1GHz ~ 12.75GHz

< -47 dBm @ 1.8GHz ~ 1.9GHz

< -47 dBm @ 5.15GHz ~ 5.3GHz

≤ 35%

≥ 35dB @FER ≤ 8%,

LGE Internal Use Only

- 18 -

Only for training and service purposes

7) WLAN 802.11g transceiver specication

7) WLAN 802.11g transceiver specification

Item Specification

2. PERFORMANCE

Transmit Frequency 2400 MHz ~ 2483.5 MHz ( CH1~CH13 )

Tx Power Level ≤ 20dBm

Frequency Tolerance within ±25 PPM

Chip clock Frequency

Tolerance

Spectrum Mask

Transmitter constellation error

(rms EVM)

Spurious Emissions

2400 MHz~ 2483.5 MHz (CH1 ~ CH11)

within ±25 PPM

≤ -20 @ ±11MHz offset (9Mhz ~ 11MHz)

≤ -28 @ ±20MHz offset (11MHz ~ 20Mhz)

≤ -40 @ ±30MHz offset (20MHz ~ 30Mhz)

≤ -5dB

< -36 dBm @ 30MHz ~ 1GHz

< -30 dBm above @ 1GHz ~ 12.75GHz

< -47 dBm @ 1.8GHz ~ 1.9GHz

< -47 dBm @ 5.15GHz ~ 5.3GHz

PER ≤ 10%

-82dBm@6Mbps, -81dBm@9Mbps, -79dBm@12Mbps

Rx Min input Sensitivity

Rx Max input Sensitivity ≥ -20dBm(6,9,12,18,24,36,48,54Mbps) @ PER ≤ 10%

Rx Adjacent Channel

Rejection

-77dBm@18Mbps, -74dBm@24Mbps, -70dBm@36Mbps

-66dBm@48Mbps, -65dBm@54Mbps

PER ≤ 10%,

ACR ≥ 16dB@6Mbps, ACR ≥ 15dB@9Mbps,

ACR ≥ 13dB@12Mbps, ACR ≥ 11dB@18Mbps,

ACR ≥ 8dB@24Mbps, ACR ≥ 4dB@36Mbps

ACR ≥ 0dB@48Mbps, ACR ≥ -1dB@54Mbps

※ACR shall be measured by setting the desired signal's strength 3

dB above the rate-dependent

sensitivity specified in min input sensitivity

LGE Internal Use Only

- 19 -

Only for training and service purposes

8) WLAN 802.11n transceiver specication

8) WLAN 802.11n transceiver specification

Item Specification

2. PERFORMANCE

Transmit Frequency 2400 MHz ~ 2483.5 MHz ( CH1~CH13 )

Tx Power Level ≤ 20dBm

Frequency Tolerance within ±25 PPM

Chip clock Frequency

Tolerance

Spectrum Mask

Transmitter constellation error

(rms EVM)

Spurious Emissions

2400 MHz~ 2483.5 MHz (CH1 ~ CH11)

within ±25 PPM

≤ -20 @ ±11MHz offset (9Mhz ~ 11MHz)

≤ -28 @ ±20MHz offset (11MHz ~ 20Mhz)

≤ -45 @ ±30MHz offset (20MHz ~ 30Mhz)

≤ -5dB

< -36 dBm @ 30MHz ~ 1GHz

< -30 dBm above @ 1GHz ~ 12.75GHz

< -47 dBm @ 1.8GHz ~ 1.9GHz

< -47 dBm @ 5.15GHz ~ 5.3GHz

PER ≤ 10%

82dBm@6.5Mbps, -79dBm@13Mbps, -77dBm@19.5Mbps

Rx Min input Sensitivity

Rx Max input Sensitivity ≥ -20dBm(6,9,12,18,24,36,48,54Mbps) @ PER ≤ 10%

Rx Adjacent Channel

Rejection

-74dBm@26Mbps, -70dBm@39Mbps, -66dBm@52Mbps

-65dBm@58.5Mbps, -64dBm@65Mbps

PER ≤ 10%,

ACR ≥ 16dB@6.5Mbps, ACR ≥ 13dB@13Mbps,

ACR ≥ 11dB@19.5Mbps, ACR ≥ 8dB@26Mbps,

ACR ≥ 4dB@39Mbps, ACR ≥ 0dB@52Mbps

ACR ≥ -1dB@58.5Mbps, ACR ≥ -2dB@65Mbps

※ACR shall be measured by setting the desired signal's strength

3 dB above the rate-dependent

sensitivity specified in min input sensitivity

LGE Internal Use Only

- 20 -

Only for training and service purposes

9) LTE transceiver specication

Item Spec. Min Typ. Max

2. PERFORMANCE

Maximum Output

Power(Class III)

Frequency Error QPSK

EVM

IQ-component QPSK, 12RB -24.2 dBc

In-band emissions

for non allocated RB

Spectrum Flathness QPSK, 50RB +5.4 dBpp

Occupied Bandwidth QPSK, 50RB 10 MHz

ACLR

(Adjacent Channel Leakage

Power Ratio)

Power class 3

(Environmental Test)

QPSK

16 QAM

QPSK, 12RB -24.2 dB

E-UTRA ACLR1 -29.2 dB

UTRA ACLR1 -32.2 dB

UTRA ACLR2 -35.2 dB

20.3

(20.3)

-0.1PPM

-15hz

23.0

(23.0)

-

25.7

(25.7)

+0.1PPM

-15hz

17.5

12.5

dBm

10MHz

%

Transmitter

Spurious emissions

9 kHz < f < 150 kHz -36

150 kHz < f < 30 kHz -36

30 kHz < f < 1 GHz -36

1GHz < f < 12.75 GHz -30

dBm 1kHz

dBm

10kHz

dBm

100kHz

dBm

1MHz

LGE Internal Use Only

- 21 -

Only for training and service purposes

10) LTE receiver specification

11) GPS receiver specification

10) LTE receiver specication

Item Spec. Min Typ. Max

Sensitivity Level DL : QPSK, 50RB

UL :QPSK, 25RB(B5)

UL : QPSK, 20RB(B17)

UL : QPSK, 50RB(B2/B4)

Dual Receiver

2. PERFORMANCE

Band2,5

Band4

Band17

-94.3

-96.3

-93.3

dBm

/10MHz

Maximum input Level

ACS

(Adjacent Channel Selectivity)

In-band Blocking

(DL : QPSK, 50RB

UL :QPSK, 20RB)

Out-of band Blocking

(DL : QPSK, 50RB

UL :QPSK, 20RB)

Narrow Band Blocking

(DL : QPSK, 50RB

UL :QPSK, 20RB)

Intermodulation ( DL: QPSK, 50RB

UL :QPSK, 20RB)

Dual Receiver

(DL : 640AM, 50RB

UL : QPSK, 12RB)

Dual Receiver

(DL : 640AM, 50RB

UL : QPSK, 12RB)

∆f ± 7.5MHz, LTE BW 5MHz

Dual Receiver

∆f ± 7.5MHz, LTE BW 5MHz

∆f ± 12.5MHz, LTE BW 5MHz

Dual Receiver

∆f ± 15MHz,~85MHz, CW

Dual Receiver

∆f ± 5.2125MHz, CW

Dual Receiver

∆f ± 12.5MHz, CW

∆f ± 25MHz, LTE BW 5MHz

-25.7

33 dB

-88.3

- -88.3

-81.3

-88.3

dBm

/10MHz

dBm

/10MHz

dBm

/10MHz

dBm

/10MHz

dBm

/10MHz

Spurious Emission

( DL: QPSK, 0RB

UL :QPSK, 0RB)

11) GPS receiver specication

Item Specification

Receive Frequency 1574.42 MHz ~ 1576.42 MHz

Minimum Sensitivity

LGE Internal Use Only

Dual Receiver

30MHz< f < 1GHz

1GHz < f < 12.75 GHz -47

1 satellite ≥-142dBm, 7 satellites ≥ -147dBm at coarse time

aiding

- 22 -

Only for training and service purposes

-57

dBm

/100MHz

dBm

/1MHz

3.CIC_AND SERVICE CENTER

3.1 CIC FAQ

No FAQ Q&A

1 Q I can't remember the PhoneLock password.

When Password and Pin are locked, turn the power o and press Power key + Volume down key for Factory Reset.

- When Pattern is locked, and you can't remember the Backup PIN, you can set a

A

new pattern lock as long as your Gmail account is set, by pressing the Forgot button.

- Unless a Gmail account is set, press Power key + Volume down key for Factory Reset.

3. CIC AND SERVICE CENTER

Request for development

1. How to disable Pattern Lock, Password and PIN.

2. Request to check out if it is specied in the user manual.

3. Description on HW Factory Reset Key combination and how to do it.

LGE Internal Use Only

- 23 -

Only for training and service purposes

No FAQ Q&A

3. CIC AND SERVICE CENTER

2 Q

A

How do I put in and take out les from the SD card?

E977 does not support external SD cards. You can't write or delete les in the internal storage of the terminal. For this, you

should connect the terminal with PC via a removable disk. First, download and install the USB driver. Then, do the following when the USB

data communication cable is connected.

Request for development

LGE Internal Use Only

1.PC<-> SD CARD

2.PHONE<-> SD CARD

1. Status Bar Slide Down

2. "USB connected" Touch

3. Select "Media sync(MTP)"

- 24 -

Only for training and service purposes

No FAQ Q&A

3. CIC AND SERVICE CENTER

3 Q

A

Request for development

I use it abroad, but 3G connection doesn’t work.

Settings > Wireless & Networks > More > Mobile networks > Data Enabled (Data Enabled must be checked).

Unless it is checked. check it.

ex) 1. Europe<->Europe

2. Europe<->Continents(North America, Asia etc)

LGE Internal Use Only

- 25 -

Only for training and service purposes

No FAQ Q&A

3. CIC AND SERVICE CENTER

4 Q

A

The GPS location isn't right, what should I do?

GPS signals are so weak that it may be impossible to capture the location due to weather conditions or surrounding environment(indoors, radio wave reection etc).

When Setting->Location Service -> Google's Location Service item is checked, location information can be brought from nearby base stations. In this cae, compared to GPS-based location information, error ranges are wider, ending up in failure to capture precise location information.

Check the 'Use GPS Satellites,' and get the current location with GPS outdoors to lessen the error range.

5 Q

A

LGE Internal Use Only

The downloaded application isn't compatible?

You need to specify the incompatible aspects. In general, the incompatibility issues are attributable to making APPs without

considering compatibility. Let us know the incompatible apps, so that we can check those out for you. Thanks.

- 26 -

Only for training and service purposes

No FAQ Q&A

3. CIC AND SERVICE CENTER

6 Q

How do I make an e-mail account?

Email supports EAS, IMAP4 and POP3 protocols. Follow the steps below for registration. (If no account has been registered, you are automatically driven to the registration

screen upon running the email.)

* EAS account

Choose MS Exchange as the email service provider >Enter your email address and password (you are advised not to change the user name except when the email address ID diers from the user name.) >Choose Server Addr, Domain and Use SSL >Set the interval for reception and email synchronization > (Do security setting conforming to server setting) > Done.

A

* IMAP4, POP3

Select email service provider >Enter email addr and password > (Make sure your account supports IMAP4 or POP3 service)

> Select reception server and security type(if a service provider has already been entered, the process goes automatically) >Select sending server and security connection(if a service provider has already been entered, the process goes on automatically). > (In general, the SMTP user name and password are same as the email addr and password initially entered) >Done.

LGE Internal Use Only

- 27 -

Only for training and service purposes

No FAQ Q&A

3. CIC AND SERVICE CENTER

7 Q

A

8 Q

A

E-mail registration doesn’t work.

1. Email service uses data. Make sure WiFi or data is available.

2. Check out the email addr and password.

3. Check out your email service's account setting information(IMAP, POP3, SMTP).

4. Refer to your service administrator for EAS server info.

Unused application shows up as a using program even though it is all killed. What should I do?

It is because the service is being run in the background of the app. For example, phone or email app is supposed to let the user know when email

messages or voice calls arrive even though it is killed.

LGE Internal Use Only

- 28 -

Only for training and service purposes

No FAQ Q&A

3. CIC AND SERVICE CENTER

9 Q

A

Wi connection doesn't work well.

WiFi connection failure may result from several causes. Try the following for wiFi connection.

1. See if WiFi is ON.

2. See if it is connected to a service provicer's specialized AP, e.g. Rogers, Olleh KT, SKT

and U+.

1) These APs have Open security types and provide automatic connection without

requiring separate passwords. In practice, however, only AP-authorized terminals can use WiFi. Try connecting to another AP.

3. Simply, AP info may dier from the info on the PHONE.

1) See if AP info, e.g. Security type and password is same as the info on the PHONE.

2) AP info may have been updated. Click the AP and "Forget". Press " Scan" button,

and the AP list is updated. Then, try connection again.

4. DHCP server troubles may hinder dynamic IP allocation. In this case, use a xed IP

for IP allocation.

1) "Show advanced options"(Check) > "IP Settings"(Static). Then, set "IP adress",

"Gateway", "Network prex length", "DNS 1" and "DNS 2" to connect to the AP.

10 Q

A

LGE Internal Use Only

How do you install the PC Sync Program?

1. Go to www.lg.com and select a country(ex: Canada).

2. Support > Mobile Support > Cell Phones > Model Number, and select LGE977.

3, Download > PC Sync , and click on the Download button to install relevant

program on PC.

- 29 -

Only for training and service purposes

No FAQ Q&A

3. CIC AND SERVICE CENTER

11 Q

A

12 Q

A

How do you install the Phone driver?

When installing PC Sync program, the integrated USB driver for the model is installed as well.

To connect PC with Phone, refer to # 11 and install PC Sync program. Once the installation is completed, connect the USB cable with PC and Phone.

How to connect internet/data network.

Settings > Wireless & Networks > More > Mobile networks >See if Data Enabled is checked.

If it is unchecked, check it. (Users can choose the phone's data connection status( ON/OFF). When data connection status is OFF, MMS text messages and internet are not

available.)

LGE Internal Use Only

- 30 -

Only for training and service purposes

LG E977 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual