Nokia RM-914 User manual

Check the repair
policy before
performing any
mechanical repair
on Service Level
1&2!
Service Manual for L1 and L2
Nokia Lumia 520
RM-914, RM-915
Key features
z
Full WP8 Experience in affordable package
z
1 GHZ Dual core CPU
z
4.0" LCD Display (800 x 480 pixels)
z
720P HD Video recording
z
MicroSD card support up to 64GB
Version 1.0
Exploded view Disassembly steps Assembly hints
Solder components Service devices Product controls and interfaces
Service concept Phone reset
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
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Service Manual Level 1 and 2
Nokia Lumia 520
RM-914, RM-915
Version 1.0
Exploded view
EARPIECE GASKET
I0005
TOUCH WINDOW & A-COVER
ASSEMBLY
I0001
DISPLAY SUPPORT
I0003
EARPIECE
I0004
AV JACK ADHESIVE
I0007
LIGHT SWAP PWB
I0011
CAMERA MODULE
I0015
MAIN ANTENNA
I0024
WCN SHIELDING LID
I0019
VOLUME KEY
I0026
PMU SHIELDING LID
I0016
DISPLAY
I0002
DISPLAY CONDUCTIVE TAPE
I0029
AV JACK FLEX ADHESIVE
I0008
CAMERA KEY
I0027
HEAT SPREADER
I0009
TYPE LABEL
I0012
AV JACK
I0006
BATTERY BL-5J
I0014
SPEAKER GASKET
I0022
IHF SPEAKER
I0023
POWER KEY
I0028
CELL PA SHIELDING LID
I0021
RF IC SHIELDING LID
I0018
MICROPHONE GASKET
I0010
SCREW TORX+ SIZE 4
M1.4 X 3.4
I0013
EMMC SHIELDING
LID
I0017
SCREW TORX+ SIZE 4
M1.4 x 4.5
I0025
DISPLAY SUPPORT ASSEMBLY
(I0003 - I0010)
1
B-COVER ASSEMBLY
(I0026 - I0028)
4
D-COVER ASSEMBLY
(I0022 - I0024)
3
LIGHT SWAP PACKAGE
(I0011 - I0012) 2
v1.0 Only available
as assembly
Not reuseable
after removal
Repair/swap
only in level 3
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Lumia 520
RM-914, RM-915
Version 1.0
Disassembly steps
1) For disassembling you need the Nokia Standard toolkit version 2. You will also need the camera
removal tool SS-305 and an AV plug.
2) Protect the TOUCH WINDOW with protective film.

3) Release the BACK COVER by pushing from the top.
4) Remove the BACK COVER.

5) Lift up the BATTERY from the bottom and remove it.
6) Unscrew the five Torx+ size 4 screws in the order shown. Do not use them again. Discard them.

7) Unscrew the three Torx+ size 4 screws in the order shown. Do not use them again. Discard them.
8) Release the two clips on the left side of the D-COVER with the SRT-6, starting from the bottom.

9) Then release the two clips on the right side of the D-COVER, starting from the bottom.
10) Release also the top side of the D-COVER from the shown place.

11) Lift up and remove the D-COVER.
12) Release the IHF SPEAKER with the SS-93 and remove it with tweezers. Do not use it again. Discard it.

13) Remove the SPEAKER GASKET with tweezers. Do not use it again. Disard it.
14) Open the DISPLAY connector with the SS-93. Be careful not to damage the connector or any
components nearby.

15) Open the TOUCH WINDOW connector with the SS-93. Be careful not to damage the connector or any
components nearby.
16) Release the TOUCH WINDOW connector flex from the ENGINE BOARD by carefully pushing it with the
SS-93. Be careful not to damage the flex.

17) Release the two clips holding the ENGINE BOARD with the SS-93.
18) Lift up and remove the ENGINE BOARD.

19) Remove the CAMERA with the SS-305 camera removal tool. Insert the tool to the CAMERA socket.
Then press and hold from the sides and pull up the CAMERA.
20) Release the EARPIECE with the sharp end of the SS-93 and remove it with tweezers. Do not use it
again. Discard it.

21) Remove the EARPIECE GASKET with tweezers. Do not use it again. Discard it.
22) Lift up the AV JACK with an AV plug while holding the AV JACK flex with finger.

23) Then carefully release the AV JACK flex with the SS-93 and remove the AV JACK.
24) Remove the HEAT SPREADER with tweezers. Do not use it again. Discard it.

25) Release the DISPLAY SUPPORT from the shown place with the SRT-6.
26) Separate the DISPLAY SUPPORT including the DISPLAY from the TOUCH WINDOW.

27) Protect the other side of the TOUCH WINDOW with protective film.
28) Protect the DISPLAY with protective film.

29) Carefully release the DISPLAY from the DISPLAY SUPPORT by pushing from the hole next to the
DISPLAY flex with the sharp end of the SS-93. Note that releasing the DISPAY is allowed ONLY from the
shown place.
30) Separate the DISPLAY from the DISPLAY SUPPORT. Be careful not to damage the DISPlAY flex while
guiding it through the DISPLAY SUPPORT.

31) The Nokia Lumia 520 disassembly procedure is complete.
-END OF DISASSEMBLY-
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Lumia 520
RM-914, RM-915
Version 1.0
Assembly hints
1) Before assembling the DISPLAY attach the DISPLAY CONDUCTIVE TAPE to the bottom back side of the
DISPLAY as shown.
2) After the DISPLAY connector is connected, hold the connector with a finger and use the SS-93 to bend
the flex down from the edge of the ENGINE BOARD, so that the result is as shown. Be careful not to
damage the flex when bending it!

3) Fasten the three Torx+ size 4 screws in the order shown to the torque of 12 Ncm.
4) Fasten the five Torx+ size 4 screws in the order shown to the torque of 14 Ncm.
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.