Toshiba ET 2000 User manual

Service Manual for L1 and L2

Nokia Lumia 1520

RM-937, RM-938,
RM-939, RM-940 (AT&T)

Key features

 5.98" ClearBlack display
 2GB RAM
 32 GB Internal mass memory (16 GB AT&T)
 20 MP camera
 Wireless charging

Version 1.0

Check the repair

policy before

performing any

mechanical repair

on Service Level

1&2!

Exploded view Disassembly steps Disassembly video

More More More

Assembly steps Assembly video Solder components

More More More

Service devices Product controls and interfaces Service concept

More More More

Phone reset

More

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2

Nokia Lumia 1520

RM-937, RM-938, RM-939, RM-940 (AT&T)
Version 1.0

DISPLAY ASSEMBLY

(I0001 - I0003)

1

LIGHT SWAP PACKAGE

(I0013 - I0015)

3

DISPLAY

I0003

EARPIECE

I0009

SIDE KEY FLEX

I0005

VIBRA FLEX

I0004

VIBRA SUPPORT

I0022

LIGHT SWAP PWB

I0014

SKYPE CAMERA

I0013

Exploded view

TOUCH WINDOW
I0001

CHASSIS
I0002

BATTERY ADHESIVE
I0007

BATTERY
I0006

BOTTOM MODULE
0017

IHF ANTENNA
I0016

SCREW TORX+

SIZE 4 M1.2 X 2.6

I0024

DISPLAY CONNECTOR SUPPORT

BRIDGE CONNECTOR SUPPORT

*Only in AT&T

variant RM-940

I0021

I0023

SCREW TORX+

SIZE 4 M1.2 X 2.6

I0024

CAMERA

I0020

PMA FLEX

I0028

LED FLASH

I0011

AV FLEX

I0012

SCREW TORX+

SIZE 2 M1.4 x 2.0

I0025

TYPE LABEL

I0015

SD TRAY

I0027

Only available
as assembly

SCREW TORX+
SIZE 4 M1.2 X 2.6
I0024

COAX CABLE 2
I0019

COAX CABLE 1
I0018

HEAT SPREADER
I0008

SHOCK ADHESIVE
I0029

UNIBODY MODULE

(I0010 - I0012, I0028*)

UNIBODY
I0010

IMEI LABEL
I0015

SIM TRAY
I0026

TYPE LABEL
I0015

Not reuseable
after removal

2

Repair/swap
only in level 3

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2

Nokia Lumia 1520

RM- 937, RM-938, RM-939, RM- 940 (AT&T)
Version 1.0

Disassembly steps

1) For disassembling you need the Nokia Standard toolkit version 2. You will also need the SIM door key,
the unibody opening frame SS-321, the RF cable disassembly/assembly tool SS-298 and the battery
release tool SS-317.

Note that the device used in this disassembly procedure is RM-940.

2) The power must be off during the disassembly procedure.

3) Protect the DISPLAY with protective film.

4) Release the SD TRAY with the SIM door key and pull the tray out.

5) Release the SIM TRAY with the SIM door key and pull the tray out.

6) Use tweezers to remove the IMEI LABEL. Store the IMEI LABEL on non-stick surface so it can be re­assembled.

7) Unscrew the TORX+ size 2 LOCKING RAIL SCREW.

8) Use the unibody opening frame SS-321 to separate the DISPLAY ASSEMBLY and the UNIBODY
ASSEMBLY. First place the bottom end of the device into the frame.

9) Place the top end of the device into the frame.

10) Start releasing the DISPLAY by pressing the device upper end from back side. Press both sides so
that the top end of the DISPLAY lifts up from UNIBODY ASSEMBLY.

11) Remove the unibody opening frame SS-321 and continue separating the DISPLAY by moving the
UNIBODY ASSEMBLY carefully from side to side with hands.

12) The DISPLAY and the UNIBODY ASSEMBLY can now be separated.

13) Use the SS-93 to detach one corner of the SHOCK ADHESIVE and then peel it off with fingers. Do not
use it again. Discard it.

14) Use the SS-93 to detach one corner of the HEAT SPREADER then peel it off with fingers. Do not use
it again. Discard it.

Do not damage the battery surface. Be careful not to leave residues from HEAT SPREADER around the
battery connector as it may cause shortcircuit. If adhesive residues are left on MSM shield lid, remove
them with isopropyl alcohol.

15) Unscrew this TORX+ size 4 screw. Do not use it again. Discard it.

16) Detach the BRIDGE CONNECTOR SUPPORT with tweezers.

Be careful not to damage the connectors underneath or any nearby components.

17) Use the SS-93 to open the BATTERY CONNECTOR.

Be careful not to damage the connector or any nearby components.

18) Use the SS-93 to open the BRIDGE CONNECTOR.

Be careful not to damage the connector or any nearby components.

19) Detach the BRIDGE FLEX from the BATTERY with fingers.

20) Use the SS-93 to release the DISPLAY CONNECTOR SUPPORT.

21) Remove the DISPLAY CONNECTOR SUPPORT with tweezers.

22) Use the SS-93 to open the SIDE KEY FLEX CONNECTOR.

Be careful not to damage the connector or any nearby components.

23) Use the SS-93 to open the DISPLAY CONNECTOR.

Be careful not to damage the connector or any nearby components.

24) Disconnect this RF CABLE with the SS-298. Lock the SS-298 to the top of the connector as shown
and lift it up carefully.

Be careful not to damage the connector or any nearby components.

25) Also disconnect the second RF CABLE with the SS-298. Lock the SS-298 to the top of the connector
as shown and lift it up carefully.

Be careful not to damage the connector or any nearby components.

26) Lift the first RF CABLE carefully from the cavity with fingers.

Do not use tweezers or sharp tools as those may damage the cable.

27) Lift the second RF CABLE carefully from the cavity with fingers.

Do not use tweezers or sharp tools as those may damage the cable.

28) Unscrew the four TORX+ size 4 screws. Do not use them again. Discard them.

29) Separate the IHF ASSEMBLY.

30) Use the SS-93 to carefully detach the BOTTOM MODULE from the IHF ANTENNA. Lever the BOTTOM
MODULE from both ends to loosen the adhesive.

Be careful not to damage the components underneath the BOTTOM MODULE.

31) The BOTTOM MODULE and the IHF ANTENNA can now be separated.

32) Disconnect the RF CABLEs with the SS-298. Lock the SS-298 to the top of the connectors as shown
and lift it up carefully.

Be careful not to damage the connectors or any nearby components.

33) Unscrew the five TORX+ size 4 screws. Do not use them again. Discard them.

34) Lift the ENGINE BOARD. Use the SS-93 if needed.

Be careful not to damage the components underneath the ENGINE BOARD.

35) Use the SS-93 to open the CAMERA CONNECTOR.

Be careful not to damage the connector or any nearby components.

36) Remove the CAMERA with tweezers.

37) Use tweezers to remove the VIBRA SUPPORT.

38) Use the SS-93 to release the VIBRA. Remove the VIBRA with tweezers.

39) Use tweezers to remove the EARPIECE.

40) Release the straight part of the SIDE KEY FLEX by sliding the SS-93 as shown.

41) Detach the SIDE KEY FLEX by pulling it with tweezers as shown.

42) Remove the SIDE KEY FLEX.

BATTERY REMOVAL IF OLD VERSION OF THE BATTERY ADHESIVE IS IN USE

43) Insert the SS-317 into the shown place between the BATTERY and the CHASSIS. Push the SS-317
slowly and steadily forward to loosen the adhesive. Do the same on the other side of the battery.

Be careful not to damage battery or battery surface as it may cause leak or short circuit.

44) Continue loosen the adhesive carefully from side to side untill the BATTERY can be removed with
hands.

Do not reuse the battery after disassembly.

BATTERY REMOVAL IF NEW VERSION OF THE BATTERY ADHESIVE IS IN USE

45) Pull the adhesive tape carefully with pliers from battery corner. When tape has come out a bit, move
pliers to get a better grip, or continue pulling it with fingers.

46) Pull one tape out first, then pull the another one out.

47) Remove the BATTERY.

Battery can be re-used if no physical damages seen after removal.

48) Use the SS-93 to lift the FLASH. Remove it with tweezers.

49) Place the SS-93 between the AV ASSEMBLY and the UNIBODY. Lever the AV ASSEMBLY out from its
cavity.

50) Pull the AV CONNECTOR up with fingers and release the contact pad with the SS-93.

51) Use the SS-93 to release the top end of the PMA FLEX . Release the other end of the PMA FLEX by
pushing the contacts with the sharp end of the SS-93.

NOTE: PMA FLEX can be disassembled only in AT&T variant, RM-940.

52) Separate the PMA FLEX.

53) The Nokia Lumia 1520 disassembly procedure is complete.

-END OF DISASSEMBLY-

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2

Nokia Lumia 1520

RM- 937, RM-938, RM-939, RM- 940 (AT&T)
Version 1.0

Assembly steps

1) For assembling you need the Nokia Standard toolkit version 2. You will also need the RF cable
disassembly/assembly tool SS-298 and the SS-316 pressing tool.

2) Use tweezers to peel off the two protective films from the PMA FLEX.

NOTE: PMA FLEX can be assembled only in AT&T variant, RM-940.

3) Place the PMA FLEX into the UNIBODY MODULE. Use the shown guidings when aligning the flex. Press
gently to activate the adhesive on both ends.

4) Use tweezers to remove the protective film from the AV CONNECTOR. Place the AV CONNECTOR into
its cavity with tweezers.

5) Use the shown guiding when aligning the AV CONNECTOR. Press gently with the SS-93 to activate the
adhesive on contact pad. Avoid touching the golden parts.

6) Unwrap a new LED FLASH and attach it with tweezers. Press gently with the SS-93 to activate the
adhesive.

7) Remove the protective film from the battery adhesive. Place the adhesive into the battery cavity and
then peel the protective film off.

NOTE: Before assembling the adhesive and the battery make sure the battery cavity is clean.

8) Place the BATTERY into the CHASSIS top end first. Press the BATTERY with fingers to secure it
properly.

9) Use tweezers to remove the protective film from the SIDE KEY FLEX.

10) Use tweezers to attach the SIDE KEY FLEX. Use the shown guidings when aligning the flex.

11) Fasten the straight part of the SIDE KEY FLEX by sliding the SS-93 as shown.

12) Use tweezers to place the EARPIECE into its slot.

13) Use tweezers to remove the protective film from the VIBRA. Align the VIBRA with tweezers.

14) Press gently with the SS-93 to activate the adhesive.

15) Use tweezers to assemble the VIBRA SUPPORT. Align the shown side first.

16) Use the SS-93 to connect the CAMERA CONNECTOR.

Be careful not to damage the connector or any nearby components.

17) Place the ENGINE BOARD to the DISPLAY ASSEMBLY.

While aligning the ENGINE BOARD be careful not to damage the shown flexes or connectors.

18) Check that the FRONT CAMERA goes into its cavity.

19) Fasten the five TORX+ size 4 screws in the order shown to the torque of 10 Ncm.

20) Connect the two RF CABLEs with the SS-298. Lock the SS-298 to the top of the connector by first
placing the tool on the cable and then sliding it towards the connector. Secure the connector by pressing
it gently and release the SS-298 by sliding it carefully as shown.

Be careful not to damage the connector or any nearby components.

21) Secure the second RF CABLE connector by pressing it gently and release the SS-298 by sliding it
carefully as shown.

Be careful not to damage the connector or any nearby component

22) Combine the BOTTOM MODULE and the CHASSIS. Bend BRIDGE FLEX upwards before placing the
BOTTOM MODULE into chassis.

23) Peel off this protective film from the IHF ASSEMBLY. Place the IHF ASSEMBLY on top of the BOTTOM
MODULE.

24) Fasten the four TORX+ size 4 screws in the order shown to the torque of 10 Ncm.

25) Use tweezers to remove the second protective film from the IHF ASSEMBLY. Use the SS-93 to bend
the gasket around the USB.

26) Use the SS-298 to connect the black RF CABLE. Secure the connector by pressing it gently and
release the SS-298 by sliding it carefully as shown.

Be careful not to damage the connector or any nearby components.

27) Use the SS-93 to insert the black RF CABLE into the cavity and under the hooks.

Be careful not to damage the cable.

28) Use the SS-298 to connect the grey RF CABLE. Secure the connector by pressing it gently and
release the SS-298 by sliding it carefully as shown.

Be careful not to damage the connector or any nearby components.

29) Place the grey RF CABLE into the cavity with the SS-93.

Be careful not to damage the cable.

30) Make sure that either one of the cables is not on top of the other near the IHF ASSEMBLY. Check that
the cables are secured under the shown hook.

31) Use the SS-93 to connect the DISPLAY CONNECTOR.

Be careful not to damage the connector or any nearby components.

32) Use the SS-93 to connect the SIDE KEY FLEX CONNECTOR.

Be careful not to damage the connector or any nearby components.

33) Use tweezers to align the DISPLAY CONNECTOR SUPPORT. Make sure the DISPLAY CONNECTOR
SUPPORT goes under the shown clips and slide it into its place.

34) Use the SS-93 to connect the BRIDGE CONNECTOR.

Be careful not to damage the connector or any nearby components.

35) Use the SS-93 to connect the BATTERY CONNECTOR.

Be careful not to damage the connector or any nearby components.

36) Attach the BRIDGE FLEX to the BATTERY.

37) Place the BRIDGE CONNECTOR SUPPORT with tweezers. Align the shown clip first and then put down
the other end.

Be careful not to damage the connectors underneaththe support or any nearby components.

38) Fasten this TORX+ size 4 screw to the torque of 10 Ncm.

39) Place a new HEAT SPREADER with tweezers. Press the HEAT SPREADER with fingers to activate the
adhesive and secure it properly. Then peel the protective film off.

40) Place a new SHOCK ADHESIVE with tweezers. Press the SHOCK ADHESIVE with fingers to activate the
adhesive and secure it properly.

41) First align the bottom end of the WINDOW ASSEMBLY to the UNIBODY ASSEMBLY and slide the
WINDOW ASSEMBLY in low angle into its place.

42) Then place the other end. Hold the device in hands and press slightly to attach the WINDOW
ASSEMBLY correctly.

43) Fasten this TORX+ size 2 screw to the torque of 10 Ncm.

44) Use tweezers to place the IMEI LABEL. Secure the IMEI LABEL with the SS-316.

45) Place the SIM TRAY and the SD TRAY.

46) Press the power key and check that the device restarts properly.

The Nokia Lumia 1520 assembly procedure is complete.

-END OF ASSEMBLY-

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2

Nokia Lumia 1520

RM-937, RM-938, RM-939, RM-940 (AT&T)
Version 1.0

TOP

Solder components

EMC/ESD Grounding springs

X1003X1002

BOTTOM

X7824

Div ant

Connector

NFC ant

connector

X6502

AV

Connector

X1359

LED Flash

gnd spring

X1471

LED Flash

spring

X2101

Vibra

spring

X2102

Vibra

spring

X3300 X3301

Wireless charging

connector

Wireless charging

X7823

connector

©2013 Nokia | Confidential | All Rights Reserved.

Main ant

connector

X6501

NFC ant

connector

Service Manual Level 1 and 2

V

Nokia Lumia 1520

RM-937, RM-938, RM-939, RM-940 (AT&T)

ersion 1.0

CA-190CD Service cable AC-60 Fast USB charger SIM Door key

Service devices

SS-321 Unibody opening frame SS-317 Battery release tool SS-298 RF Cable

disassembly/assembly tool

SS-316 Pressing tool

Bulletin (SB-011) on Nokia Online. Supplier or

manufacturer contacts for tool re-order can be

found in “Recommended service equipment”

Nokia Standard Toolkit (v2)

For more information, refer to the Service

document on Nokia Online.

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2

Nokia Lumia 1520

RM-937, RM-938, RM-939, RM-940 (AT&T)
Version 1.0

1

2

6
9

Product controls and interfaces

1 — 3.5 mm AHJ connector

2 — Front camera

3
4

5

7

8

10

3 — Earpiece

4 — Ambient light & Proximity sensor

5 — Touch screen

6 — Back key

7 — Start key

8 — Search key

9 — Microphone

10 — Micro-USB connector

11 — MicroSD card holder

12 — Nano-SIM card holder

13 — Camera flash

14 — Camera

15 — Volume keys

16 — Power/Lock key

17 — Camera key

*

18 — Wireless charging connectors

(Only in AT&T version RM-940)

19 — Loudspeaker

20 — GPS/BT/WLAN Antenna area

21 — NFC Antenna area

22 — Wireless charging area

23 — Cellular antenna area

11

12

18*

19

13

14

15

16

17

20

21

22

23

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2

Nokia Lumia 1520

RM-937, RM-938, RM-939, RM-940 (AT&T)
Version 1.0

Flashing concept

Service concept

Service

software

CA-101

Note: Charged
battery is
mandatory

Transceiver with

embedded battery

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2

t

Nokia Lumia 1520

RM-937, RM-938, RM-939, RM-940 (AT&T)
Version 1.0

Phone rese

Hardware reset

If the phone hardware is jammed, you should first recommend that the
consumer performs a hardware reset. The hardware reset does not
reset the Windows Live ID or remove any consumer data. Because the
consumer cannot remove the battery to reset the phone the phone
has a special electronic circuit which cuts the phone power when either
one of the following hardware reset options is performed.

Option 1:

To perform the hardware reset, press and hold the Volume down and
Power keys at the same time for about 10-15 seconds until a short
vibration is felt. The phone should restart by itself.

Option 2:

To perform the hardware reset, press and hold the Power key for
about 10-15 seconds until a short vibration is felt. The phone should
restart by itself.

Software / operating system (OS) reset

The software / operating system (OS) reset returns the phone to its out-of-the-box state. Note that this
procedure erases all consumer data! Always first try to perform a hardware reset.

Option 1: About menu

- Use this option if the consumer knows the lock code

- This option warns the consumer about data loss!

- Tap Settings > About > reset your phone

Option 2: Hardware key combination

3

- Use this option if the phone is locked and the consumer does not know the code

- Note: no warning about data loss!

- Do not advertise this feature to consumers!

Follow next steps to perform OS reset with phone keys.

Step 1

Make sure the phone is turned Off.

1. Press and hold the power key

2. Phone vibrates (release the
power key)

3. Press and hold the volume
down key

4. Exclamation mark is shown on
the screen (release the volume
down key)

Step 2

Input the following key
combination:

1. Volume up

2. Volume down

3. Power

4. Volume down

Step

The phone will reset and boot up
automatically

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2

V

y

Nokia Lumia 1520

RM-937, RM-938, RM-939, RM-940 (AT&T)

ersion 1.0

Version Date Description

1.0 29.10.2013 First approved version

Version histor

©2013 Nokia | Nokia Internal Use only | All Rights Reserved.