Nokia RH-57 Series Quick start guide

Nokia Customer Care
2112 (RH-57) Series Transceivers
Issue 1 07/2004 Company Confidential ©2004 Nokia Corporation
Disassembly/Assembly

2112 (RH-57)
Disassembly/Assembly Nokia Customer Care
Page 2 ©2004 Nokia Corporation Company Confidential Issue 1 07/2004
Disassembly Instructions
Use the following instructions to disassemble the 2112. Use the reverse order to
assemble the phone.
1. Press the release button before removing the C-cover.
2. Remove the A-cover.
3. Always protect the window with a protection film to avoid dust and scratches.
4. Unscrew the six T6 screws using the order shown. For assembly, you must use
the reverse order and a Torx T6 PLUS with torque of 20Ncm.
Torque 20Ncm
for assembly

Nokia Customer Care Disassembly/Assembly
2112 (RH-57)
Issue 1 07/2004 ©2004 Nokia Corporation Company Confidential Page 3
5. Separate the module from the B-cover and unplug the display connector
carefully by removing the UI shield from system module.
6. Separate the UI shield from the system module carefully. The key dome is
attached with adhesive tape, which must not be touched.
7. Separate the LCD from the UI shield by pressing out the LCD using a clean cloth.
Prevent the key dome tape from getting dirty.
8. Always protect the LCD window with a protection foil to avoid dust and
scratches.

2112 (RH-57)
Disassembly/Assembly Nokia Customer Care
Page 4 ©2004 Nokia Corporation Company Confidential Issue 1 07/2004
9. Remove the earpiece. Note the guiding pin when re-assembling.
10. The shielding is attached with hooks at its backside. To remove the shielding from
the B-cover, first expand the B-cover, then push the shielding upwards.
11. Remove the power button key.
12. Use the SRT-6 to lift up the antenna.

Nokia Customer Care Disassembly/Assembly
2112 (RH-57)
Issue 1 07/2004 ©2004 Nokia Corporation Company Confidential Page 5
13. Remove the antenna.
14. Use tweezers to remove the vibra motor.
15. Use tweezers to pull up the microphone.
16. To remove the DC jack, place tweezers between the spring contacts and under
the jack. You need to use additional force to pull the jack upwards.

2112 (RH-57)
Disassembly/Assembly Nokia Customer Care
Page 6 ©2004 Nokia Corporation Company Confidential Issue 1 07/2004
17. Use a flathead screwdriver as a lever to remove the release spring.
18. Turn the B-cover as shown to allow the release button to fall out.
19. Open the SIM flap and turn it as shown in the picture.
20. Expand the B-cover carefully and remove the SIM flap.

Nokia Customer Care Disassembly/Assembly
2112 (RH-57)
Issue 1 07/2004 ©2004 Nokia Corporation Company Confidential Page 7
Exchange of Battery Connector X103
These are the two soldered support angles.
1. Use a side cutter to cut the support angles.
2. Push tweezers into the outside openings of the battery connector and lift up the
plastic cover.
3. Desolder all pins and clean the pads.

2112 (RH-57)
Disassembly/Assembly Nokia Customer Care
Page 8 ©2004 Nokia Corporation Company Confidential Issue 1 07/2004
You need a soldering iron with a higher temperature when cleaning or soldering
the ground pad.
Note the location markings to fit the connector precisely.
4. Tin one of the pads to fix the connector before soldering the following pins.
5. Place the connector between the markings and solder the first support angle. If
the position is exact, solder the other pins.