Nokia Lumia 638 4G, RM-1010 Service Manual
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Service Manual for L1 and L2
Nokia Lumia 638 4G
RM-1010
Key features
Windows Phone 8.1
4.5" LCD display
1.2 GHz Quad Core processor
Version 2.0
Note: Check the repair policy before performing
any mechanical repair on Service Level 1&2!
Exploded view Disassembly steps Assembly steps
Solder components Service devices Product controls and
interfaces
Service concept Phone reset
Proximity sensor
troubleshooting
©2014 Microsoft | Internal Use only
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Service Manual Level 1 and 2
Nokia Lumia 638 4G
RM-1010
Version 2.0
Version
history
Version Date Description
1.0 29.05.2014 First published version
2.0 11.06.2014 First version published to KICS
©2014 Microsoft | Internal Use only
Service Manual Level 1 and 2
Nokia Lumia 638 4G
RM-1010
Version 2.0
Exploded
view
WINDOW FRAME
I0001
CAMERA FLEX
I0016
CAMERA
I0017
TOP FLEX
I0015
VIBRA BOOT
I0007
*NOTE: Ordering code differ
between the variants
*NOTE: Ordering code
differ between
the variants
CWS ANTENNA
I0005
BACK COVER
I0022
CAMERA GASKET
I0008
TYPE LABEL
I0012
EARPIECE PLATE
I0003
DISPLAY
I0002
EARPIECE
I0004
LIGHT SWAP PACKAGE
I0011
USB BOOT
I0013
IHF SPEAKER
I0014
IHF SPEAKER GASKET
I0009
ANTENNA 3G/
ANTENNA LTE
I0006
IHF MESH
I0010
MAIN ANTENNA
HOLE ADHESIVE
I0021
SCREW TORX+
SIZE 4 RF1.4 X 3.0
I0018
SCREW TORX+
SIZE 4 M1.4 x 2.5
I0020
SCREW TORX+
SIZE 4 M1.4 x 3.4
I0019
LIGHT SWAP PACKAGE
(I0011, I0012)
3
DISPLAY ASSEMBLY
(I0001, I0002)
1
CHASSIS ASSEMBLY
(I0005 - I0010)
2
Only available
as assembly
Not reuseable
after removal
Repair/swap
only in level 3
©2014 Microsoft | Internal Use only
Service Manual Level 1 and 2
Nokia Lumia 638 4G
RM-1010
Version 2.0
Disassembly
steps
1) For disassembling you need the Nokia Standard toolkit version 2. You will also need the camera removal
tool SS-305.
2) Protect the DISPLAY with protective film.
3) Release the BACK COVER by pulling from the both top end corners as shown.
4) Lift up and remove the BACK COVER.
5) If there is battery inserted, remove it by using the shown finger notch.
6) Lift up one corner of the MAIN ANTENNA HOLE ADHESIVE with the dental tool. Peel off and discard the
MAIN ANTENNA HOLE ADHESIVE.
Be careful not to injure yourself or the device with the sharp end of the dental tool.
7) Unscrew the two TORX+ size 4 screws in the order shown. Do not use them again. Discard them.
8) Unscrew the seven TORX+ size 4 screws in the order shown. Do not use them again. Discard them.
9) Use the SS-93 to carefully release the CHASSIS ASSEMBLY from the DISPLAY ASSEMBLY.
Be careful not to damage the shown flex.
10) Use the SS-93 to release the shown clip on the other side of the device.
11) Turn the CHASSIS ASSEMBLY as shown and open the DISPLAY connector. The DISPLAY ASSEMBLY can be
separated once the connector is opened.
Be careful not to bend the flex or damage the connector.
12) Push the SS-93 under the EARPIECE PLATE to release it. Make sure to remove all EARPIECE PLATE
adhesive remains from the DISPLAY ASSEMBLY.
13) Use the dental tool to separate the EARPIECE from the EARPIECE PLATE. Do not use the EARPIECE
PLATE again. Discard it.
14) Push the sharp end of the SS-93 under the IHF SPEAKER to release it. Remove it with tweezers.
15) Release the IHF SPEAKER GASKET with dental tool. Remove and discard the IHF SPEAKER GASKET.
16) Use the SS-93 to release the IHF MESH. Remove and discard the IHF MESH.
17) Open the CAMERA connector with the SS-93. Remove the CAMERA FLEX and CAMERA.
Be careful not to damage the connector or any nearby components.
18) Place the SS-305 camera removal tool on top of the CAMERA as shown. Note the alignment. Push
down the SS-305 until the camera retaining clips are released. Hold from the sides of the SS-305.
19) Pull up the SS-305 while holding from the sides of it and remove the CAMERA.
20) Use dental tool to remove the CAMERA GASKET. Do not use it again. Discard it.
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