Nokia Asha 308 RM-838 User manual

Check the repair
policy before
performing any
mechanical repair
on Service Level
1&2!
Service Manual for L1 and L2
Nokia Asha 308 (RM-838 / RM-852) Dual-SIM
Nokia Asha 309 (RM-843 / RM-844) Single-SIM
Nokia Asha 310 (In China, Nokia Asha 3100)
(RM-911) Dual-SIM Wi-Fi
Key features
S40 operating system with Full Touch UI
Dual SIM (Nokia Asha 308, Nokia Asha 310, Nokia 3100)
Wi-Fi (Nokia Asha 309, Nokia Asha 310, Nokia 3100)
Capacitive touch screen
EA Games Gift (40 free games)
Version 2.0
Exploded view Disassembly steps Assembly hints
Service devices Product controls and interfaces Service concept
Solder components
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.
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Service Manual Level 1 and 2
Nokia Asha 308, Nokia Asha 309,
Nokia Asha 310, Nokia Asha 3100
RM-838, RM-852 / RM-843, RM-844 / RM-911
Version 2.0
Version history
Version Date Description
1.0 25.09.2012 First published version
2.0 18.02.2013 Added Nokia Asha 310/3100 (RM-911) Dual-SIM Wi-Fi information,
Updated Solder components page
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.

Service Manual Level 1 and 2
Nokia Asha 308, Nokia Asha 309,
Nokia Asha 310, Nokia Asha 3100
RM-838, RM-852 / RM-843, RM-844 / RM-911
Version 2.0
Exploded view
A-COVER
I0001
EARPIECE
I0003
UI FRAME
I0005
LIGHT SWAP PWB
I0007
CAMERA
I0011
AV JACK
I0014
DC JACK
I0015
B-COVER
I0021
SIM DOOR
I0016
TOUCH PANEL
I0002
DISPLAY
I0004
IHF SPEAKER
I0012
D-COVER
I0018
MICRO SD CARD DOOR
I0017
TYPE LABEL
I0010
DOMESHEET
I0006
ANTENNA MODULE
I0013
FEM SHIELDING LID
I0009
BB SHIELDING LID
I0008
SCREW TORX+ SIZE 5
M1.4 X 2.7
I0019
SCREW TORX+ SIZE 4
M1.4 x 4.5
I0020
A-COVER ASSEMBLY
(I0001 - I0003)
1
D-COVER ASSEMBLY
(I0012 - I0018)
3
LIGHT SWAP PACKAGE
(I0006 - I0010) 2
ANTENNA MODULE ASSEMBLY
(I0012, I0013) 4
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 Asha 308, Nokia Asha 309,
Nokia Asha 310, Nokia Asha 3100
RM-838, RM-852 / RM-843, RM-844 / RM-911
Version 2.0
Disassembly steps
For disassembling you need the Nokia Standard toolkit version 2. You will also need a DC plug, an AV plug
and the camera removal tool SS-276.
Note that the disassembly instructions are made with the Dual SIM variant (Nokia Asha 308, RM-838 and
RM-852).
Protect the TOUCH WINDOW with protective film.

Use the opening notch to release the BATTERY COVER.
Remove the BATTERY COVER.

Unscrew the four Torx+ size 4 screws in the order shown. Do not use them again. Discard them.
Unscrew the four Torx+ size 5 screws in the order shown. Do not use them again. Discard them.

To detach the A-COVER, first release the left side of the bottom end of the A-COVER with the SRT-6.
Continue to release the A-COVER with the SRT-6 on the SIM and SD CARD DOOR side. Be careful not to
damage the SIM or SD CARD DOOR while releasing the A-COVER.

Release the right side of the bottom end of the A-COVER with the SRT-6.
Release also the LOCK KEY side with the SRT-6. Be careful not to damage the LOCK or VOLUME KEYS
while releasing the A-COVER.

To remove the A-COVER, first lift up the bottom end and then release the top end.
Remove the A-COVER.

Protect the DISPLAY with protective film.
Protect the inner side of the TOUCH WINDOW with protective film.

Use the dental tool to release the EARPIECE. Remove the EARPIECE with tweezers. Do not use it again.
Discard it. Be careful not to injure yourself with the sharp end of the dental tool.
Disconnect the DISPLAY CONNECTOR with the SS-93. Be careful not to damage the connector or any
components nearby.

Remove the UI FRAME including the DISPLAY.
Detach the DISPLAY from the UI FRAME with the dental tool. Be careful not to damage the DISPLAY or
the UI FRAME.

Separate the DISPLAY and the UI FRAME.
Use the SS-93 to release the clip holding the ENGINE BOARD on the bottom end of the D-COVER.

Use the SS-93 to release the clip holding the ENGINE BOARD near the VOLUME KEY.
Use the SS-93 to release the clip holding the ENGINE BOARD on the left side of the D-COVER.

To detach the ENGINE BOARD first lift up the bottom end and then pull to the direction shown.
Remove the ENGINE BOARD.

Release one corner of the DOMESHEET with the dental tool and then peel it off with fingers. Be careful
not to damage any components nearby. Do not use the DOMESHEET again. Discard it.
Place the camera removal tool SS-276 on top of the CAMERA and hold down the button on top of the
SS-276.

Lift up the SS-276 and remove the CAMERA.
Use an AV plug to lever out the AV JACK. Remove the AV JACK with tweezers.

Use a DC plug to lever out the DC JACK. Remove the DC JACK with tweezers.
Release the clip holding the ANTENNA with the sharp end of the SS-93.

Remove the ANTENNA.
Use the SS-93 to detach the IHF SPEAKER. Remove the IHF SPEAKER tweezers.

The Nokia Asha 308 and 309 disassembly procedure is complete.
-END OF DISASSEMBLY-
©2013 Nokia | Nokia Internal Use only | All Rights Reserved.