Nokia Lumia 620 User manual

Check the repair
policy before
performing any
mechanical repair
on Service Level
1&2!
Service Manual for L1 and L2
Nokia Lumia 620
RM-84
6
Key features
z
Complete WP8 experience
z
Edge-to-edge 3.8" ClearBlack display
z
1 GHz dual core processor
z
8 GB internal mass memory / 512 MB RAM
z
Cup-shaped body with changeable covers
z
720p HD video recording
Version 1.0
Exploded view Disassembly steps Assembly hints
Solder components Service devices Product controls and interfaces
Service concept Phone reset
©2012 Nokia | Nokia Internal Use only | All Rights Reserved.
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Service Manual Level 1 and 2
Nokia Lumia 620
RM-846
Version 1.0
Exploded view
EARPIECE DUSTNET
I0008
TOUCH MODULE
I0001
EARPIECE
I0009
LIGHT SWAP PWB
I0010
CAMERA
I0011
FLASH FLEX MODULE
I0013
SIM TRAY
I0017
EARPIECE HOLDER
ADHESIVE
I0002
PROXIMITY & ALS SENSOR
PWB MODULE
I0006
DISPLAY SUPPORT
ASSEMBLY
I0004
EARPIECE HOLDER
I0007
TYPE LABEL
I0005
USB BOOT
I0012
IHF SPEAKER
I0014
BACK COVER
I0018
DISPLAY
I0003
SCREW TORX+
SIZE 4 M1.4 X 3.4
I0016
SCREW TORX+
SIZE 4 RF1.6 x 4.5
I0015
WINDOW FRAME ASSEMBLY
(I0001 - I0002)
LIGHT SWAP PACKAGE
(I0010)
2
CWS CARRIER ASSEMBLY
(I0013)
5MAIN ANTENNA ASSEMBLY
(I0014) 6
USB BOOT ASSEMBLY
(I0012) 4
v1.0 Only available
as assembly
Not reuseable
after removal
Repair/swap
only in level 3
©2012 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Lumia 620
RM-846
Version 1.0
Disassembly steps
For disassembling you need the Nokia Standard toolkit version 2. You will also need the camera removal
tool SS-296.
Protect the TOUCH MODULE with the protective film.

Release the BACK COVER by pushing the device down from the camera deco.
Lift up and remove the BACK COVER.

Pull out and remove the SIM TRAY.
Unscrew the six Torx+ size 4 screws. Note that the two screws in the middle are different type of screws
than the other four screws! If the screws are scratched, do not use them again.

Lift up and remove the MAIN ANTENNA ASSEMBLY.
Insert the SS-93 to the shown place and release the side of the CWS CARRIER ASSEMBLY. Be careful not
to damage the spring clips beneath the CWS CARRIER ASSEMBLY.

Insert the SS-93 to the shown place and release also the other side of the CWS CARRIER ASSEMBLY. Be
careful not to damage the spring clips beneath the CWS CARRIER ASSEMBLY.
Lift up and remove the CWS CARRIER ASSEMBLY.

Check that the shown spring clips are not damaged.
Use the SS-93 to open the TOUCH MODULE connector from the shown side. Be careful not to damage
the connector or any nearby components.

Open the DISPLAY connector with the SS-93 from the shown side. Be careful not to damage the
connector or any nearby components.
Open the three shown clips holding the ENGINE BOARD. Be careful not to damage the clips.

The ENGINE BOARD can now be separated.
Place the camera removal tool SS-296 on top of the CAMERA as shown. Push it in gently until the camera
retaining clips are released.

Hold from the sides of the SS-296 and lift up and remove the CAMERA.
Grab the ENGINE BOARD as shown and remove the USB BOOT. Be caeful not to twist the ENGINE BOARD
or damage the contact springs on the other side.

Remove the EARPIECE HOLDER with tweezers. Be careful not to damage the EARPIECE or the DUSTNET.
Remove the EARPIECE from the EARPICE HOLDER with tweezers. Be careful not to damage the EARPIECE
or the DUSTNET. Discard the EARPIECE and the DUSTNET if they are damaged.

Remove the EARPIECE HOLDER ADHESIVE. Do not use it again. Discard it.
The Nokia Lumia 620 disassembly procedure is complete.
-END OF DISASSEMBLY-
©2012 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Lumia 620
RM-846
Version 1.0
Assembly hints
Place the EARPIECE HOLDER with tweezers.
Then place the EARPIECE to the EARPIECE HOLDER with tweezers. Press the EARPIECE gently with the SS-
93 with the maximum pressing power of 15 N. Make sure that the EARPIECE DUSTNET is not misplaced
when pushing the EARPIECE to its place. Be also careful not to damage the EARPIECE springs.

Fasten the six Torx+ size 4 screws to the torque of 14 +/- 1 Ncm. Note that the two screws in the
middle are different type of screws than the other four screws!
Place the device to the BACK COVER bttom end first. Then lower down the top end and press it until it
snaps to place.
©2012 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Lumia 620
RM-846
Version 1.0
Solder components
X2103
F1400
X2104
X1402 X1401
X6302
X6301
X7751
X7750
X7720 X6500
X2101
X7760
X7761
X2102
Camera
fuse
CDMA GND
Spring
Earpiece
-spring
Earpiece
+ spring
LED Flash
GND spring
LED Flash
spring
BT/WLAN/FM
Ant GND spring
BT/WLAN/FM
Ant spring
Div ant
spring
Div ant
spring
NFC Ant
spring
NFC Ant
spring
GPS Ant
spring
Speaker
+ Spring
Main ant
Spring
Main Ant
GND spring
Speaker
-Spring
BOTTOM
v1.0
©2012 Nokia | Confidential | All Rights Reserved.

Service Manual Level 1 an
d
2
Nokia Lumia 620
RM-846
V
ersion 1.
0
Service devices
CA-190CD Service cable AC-50 Travel charger SS-296 Camera removal tool
BL-4J Nokia Standard Toolkit (v2)
For more information, refer to the Service
Bulletin (SB-011) on Nokia Online. Supplier or
manufacturer contacts for tool re-order can be
found in “Recommended service equipment”
document on Nokia Online.
©2012 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Lumia 620
RM-846
Version 1.0
Product controls and interfaces
2
4
5
7
6
1
3
13
14
15
16
8
10
9
11
12
17
14 — Power/Lock key
15 — Camera key
16 — Loudspeaker
17 — Antenna area
9 — Micro USB connector
8 — Search key
7 — Start key
6 — Back key
5 — Touch screen
4 — Earpiece
3 — Ambient light & Proximity
sensors
2 — Nokia AV 3.5 mm connector
1 — Secondary microphone
10 — Microphone
11 — Camera flash
12 — Camera
13 — Volume keys
v1.0
©2012 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Lumia 620
RM-846
Version 1.0
Service concept
Flashing concept
Transceiver
Service
software
CA-101
Care Dummy Battery
with power supply
via Nokia charger
or product
specific battery
©2012 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Lumia 62
0
RM-846
V
ersion 1.0
Phon
e
reset
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.
To perform a hardware reset remove the battery and
reinsert it. Boot up the phone normally.
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 men
u
- Use this option if the consumer knows the lock code
- This option warns the consumer about data loss!
-TapSettings > About > reset your phone