Page 1
Check the repair
policy before
performing any
mechanical
repair on Service
Level 1&2!
Service Manual for L1 andL
2
Nokia Asha 503 Dual SIM
Nokia Asha 503
RM-922, RM-958 (Dual SIM)
R
M
-920, RM-947, RM-959 (Single SIM)
Key features
z
5 MP Camera with a LED flash
z
3.0 QVGA Curved Gorilla glass display
z
Capacitive touch screen
z
Capacitive Back key
z
Wi-fi support
Versio
n
1.0
Exploded view Disassembly steps Assembly hints
Solder components Service devices Product controls and interfaces
Service concept
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
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Page 2
Service Manual Level 1 and 2
Nokia Asha 503 Dual SIM, Nokia Asha 503
RM-922 RM-958 (DS), RM-920 RM-947 RM-959 (SS)
Version 1.0
Exploded view
LIGHT SWAP PWB
I0006
WLAN SHIELDING LID
I0010
CAMERA
I0012
D-COVER
I0013
RELEASE BUTTON
I0017
EARPIECE GASKET
I0004
A-COVER
I0001
DISPLAY
I0005
EARPIECE
I0003
TYPE LABEL
I0011
TOUCH MODULE
I0002
BB SHIELDING LID
I0007
BT FM SHIELDING LID
I0009
SPEAKER GASKET
I0014
B-COVER
I0019
ANTENNA MODULE
I0015
IHF SPEAKER
I0016
RF SHIELDING LID
I0008
SCREW TORX+ SIZE 6
M1.6 x 5.0
I0018
A-COVER ASSEMBLY WITH TOUCH WINDOW
(I0001 - I0004)
1
LIGHT SWAP PACKAGE
(I0006 - I0011)
2
D-COVER ASSEMBLY
(I0013 - I0014)
3
Only available
as assembly
Not reuseable
after removal
Repair/swap
only in level 3
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
Page 3
Service Manual Level 1 and 2
Nokia Asha 503 Dual SIM, Nokia Asha 503
RM- 922 RM -958 (DS), RM- 920 RM-947 RM-959 (SS)
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-276. Please note that the phone used in disassembly and assembly is a prototype
phone and does not look like the sales model.
2) Protect the TOUCH WINDOW with protective film.
Page 4
3) Release the B-COVER by pushing down the RELEASE BUTTON.
4) Remove the B-COVER bottom end first
Page 5
5) Unscrew the four Torx+ size 6 screws in the order shown.
6) Release the two shown clips of the D-COVER with the SRT-6.
Page 6
7) Remove the D-COVER bottom end first.
8) Release the ENGINE BOARD from the shown place with the SRT-6.
Page 7
9) Lift up and remove the ENGINE BOARD.
After removing the ENGINE BOARD make sure to protect the DISPLAY with protective film.
10) Protect the other side of the TOUCH WINDOW with protective film.
Page 8
11) Release the EARPIECE with the dental tool. Be careful not to injure yourself with the sharp end of the
dental tool. Remove the EARPIECE with tweezers.
12) Remove the EARPIECE GASKET with the dental tool. Do not use it again. Discard it.
Page 9
13) Open the DISPLAY connector with the SS-93. Be careful not to damage the connector or any
components nearby.
14) Release the DISPLAY by carefully sliding the SS-93 under it from the shown place.
Page 10
15) Remove the DISPLAY.
16) Push the SS-276 camera removal tool to the CAMERA socket. Then push and hold down the button
on top of the SS-276.
Page 11
17) Pull out the CAMERA.
18) Release the WLAN SHIELDING LID with the dental tool. Be careful not to damage any components
nearby. Remove and discard the WLAN SHIELDING LID.
Page 12
19) Release the RELEASE BUTTON with the SS-93 and remove it.
20) Release the IHF SPEAKER with the dental tool and remove it with tweezers.
Page 13
21) Remove and discard the SPEAKER GASKET.
22) Push down the ANTENNA MODULE to remove it.
Page 14
23) The Nokia Asha 503 disassembly procedure is complete.
-END OF DISASSEMBLY-
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
Page 15
Service Manual Level 1 and 2
Nokia Asha 503 Dual SIM, Nokia Asha 503
RM- 922 RM -958 (DS), RM- 920 RM-947 RM-959 (SS)
Version 1.0
Assembly hints
1) Fasten the four Torx+ size 6 screws in the order shown to the torque of 14 Ncm.
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
Page 16
Service Manual Level 1 and 2
Nokia Asha 503 Dual SIM, Nokia Asha 503
RM-922 RM-958 (DS), RM-920 RM-947 RM-959 (SS)
Version 1.0
Solder components
X1402
X7452
F2050
X1000
X1004
X7453
X7454
S1000 S1001
S1005 X2500
X7457
X7455X7458
Touch panel
connector
Grounding
spring
Grounding
spring
Grounding
spring
GSM Antenna
gnd spring
USB
Fuse
LED Flash
spring
LED Flash
gnd spring
GSM Antenna
gnd spring
GSM Antenna
spring
Volume +
switch
Volume -
switch
Power
switch
Display
connector
TOP
BOTTOM
©2013 Nokia | Confidential | All Rights Reserved.
Page 17
Service Manual Level 1 and 2
Nokia Asha 503 Dual SIM, Nokia Asha 503
RM-922 RM-958 (DS), RM-920 RM-947 RM-959 (SS)
Version 1.0
Service devices
AC-20 Travel charger
AC-8C + CA-190CD (China)
BL-4U Battery SS-276 Camera removal tool
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.
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
Page 18
Service Manual Level 1 and 2
Nokia Asha 503 Dual SIM, Nokia Asha 503
RM-922 RM-958 (DS), RM-920 RM-947 RM-959 (SS)
Version 1.0
Product controls and interfaces
2
4
5
3
1
9
10
11
12
6
14
13
7
8
9 — Volume/Zoom up
8 — Camera
7 — Camera flash
6 — Microphone
5 — Back key
4 — Touch screen
3 — Earpiece
2 — Micro-USB connector
1 — 3.5 mm AHJ connector
10 — Volume/Zoom down
11 — Power/Lock key
12 — Back cover release button
14 — Main antenna area
13 — Loudspeaker
,,,
,
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
Page 19
Service Manual Level 1 and 2
Nokia Asha 503 Dual SIM, Nokia Asha 503
RM-922 RM-958 (DS), RM-920 RM-947 RM-959 (SS)
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
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
Page 20
Service Manual Level 1 and 2
Nokia Asha 503 Dual SIM, Nokia Asha 503
RM-922 RM-958 (DS), RM-920 RM-947 RM-959 (SS)
Version 1.0
Version histor
y
Version Date Description
1.0 07.11.2013 First published version
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
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