Page 1
Nokia 112, 1120 (RM-837)
Operating System
Connections
Talk time
Standby
L1L2 Service Manual
SERVICE MANUAL
Level 1&2
Nokia 112, 1120
RM-837
Transceiver characteristics
Band
EGSM 900/1800
Display
1.8” TFT display, 128x160 pixels
Camera
VGA camera
S40
3.5mm AV Jack
2.0mm DC Jack
Micro SD card slot
FM Radio
Bluetooth
GPRS/EGPRS
WAP 2.0
External 2nd SIM card slot (Dual SIM
ONLY)
Transceiver with BL-6C battery pack
GSM:
Up to 8h 20 min
Note:
Talk times are dependent on network
parameters and phone settings
GSM:
Up to 733 hours
1 Nokia Internal Use Only | Copyright © 2012 Nokia | All rights reserved Version 1.0
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Nokia 112, 1120 (RM-837)
L1L2 Service Manual
Table of contents
1. COPYRIGHT ....................................................................................................................................................................... 4
2. WARNINGS AND CAUTIONS ........................................................................................................................................ 5
2.1 WARNINGS ............................................................................................................................................................... 5
2.2 CAUTIONS ................................................................................................................................................................ 5
3. ESD PROTECTION .......................................................................................................................................................... 6
4. CARE AND MAINTENANCE ........................................................................................................................................... 7
5. BATTERY INFORMATION .............................................................................................................................................. 8
6. EXPLODED VIEW ............................................................................................................................................................. 9
7. SERVICE DEVICES ........................................................................................................................................................... 10
8. SOFTWARE UPDATE ...................................................................................................................................................... 11
9. DISASSEMBLY INSTRUCTIONS .................................................................................................................................. 12
10. ASSEMBLY HINTS ........................................................................................................................................................... 17
11. SOLDER COMPONENTS ............................................................................................................................................... 18
2 Nokia Internal Use Only | Copyright © 2012 Nokia | All rights reserved Version 1.0
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Nokia 112, 1120 (RM-837)
L1L2 Service Manual
CHANGE HISTORY
Status Version No. Date Comments
Approved 1.0 19.06.2012 First approved version
The purpose of this document is to help NOKIA service levels 1 and 2 workshop technicians
to carry out service to NOKIA products. This Service Manual is to be used only by authorized
NOKIA service suppliers, and the content of it is confidential. Please note that NOKIA
provides also other guidance documents (e.g. Service Bulletins) for service suppliers, follow
these regularly and comply with the given instructions.
While every endeavor has been made to ensure the accuracy of this document, some errors
may exist. If you find any errors or if you have further suggestions, please notify NOKIA
using the address below:
Nokia Care Academy
service.manuals@nokia.com
Please keep in mind also that this documentation is continuously being updated and
modified, so watch always out for the newest version.
3 Nokia Internal Use Only | Copyright © 2012 Nokia | All rights reserved Version 1.0
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