Nokia Customer Care 2255 (RM-97) Mobile Terminal Disassembly/Assembly Issue 1 10/2005 Company Confidential ©2005 Nokia Corporation
255 (RM-97) Disassembly/Assembly Contents Page Safety Information ......................................................................................................................................... 3 ESD Protection ............................................................................................................................................. 3 Assembly Instructions .........................................................................................................................
Nokia Customer Care 2255 (RM-97) Disassembly/Assembly Safety Information Adhere to the following guidelines when assembling and disassembling the phone. • QUALIFIED SERVICE Only qualified personnel may install or repair phone equipment. • ACCESSORIES AND BATTERIES Use only approved accessories and batteries. Do not connect incompatible products. • CONNECTING TO OTHER DEVICES When connecting to any other device, read its user’s guide for detailed safety instructions.
2255 (RM-97) Disassembly/Assembly Assembly Instructions To assemble the mobile terminal, follow the "Disassembly Instructions" in reverse order. Disassembly Instructions Use the following steps to disassemble the mobile terminal. 1. Remove the Battery Cover a. Turn the mobile terminal off. b. Apply pressure to the battery cover, pushing towards the bottom of the mobile terminal to remove it. c. Remove the battery. 2. Remove the Antenna Use the SS-87 antenna removal tool to remove the antenna.
2255 (RM-97) Disassembly/Assembly Nokia Customer Care 3. Remove the D-cover Screws Using a Torx 6 Plus screwdriver, undo the three screws beginning with the center top, followed by the two bottom screws. Use torque driver set to 13 Ncm (+/-2 Ncm) @ 550 RPM. Reuse screws for assembly. 1 3 2 4. Remove the D-cover a. Using a SRT-6 tool, unsnap the D-cover on either side of the mobile terminal.
2255 (RM-97) Disassembly/Assembly b. Remove the D-cover by lifting upward and then sliding off of the B/C-cover assembly, as shown below. 5. Remove the Flex Connector Using the SRT-6 tool, unsnap the main flex connector, then release the snaps on either side of the PWB.
2255 (RM-97) Disassembly/Assembly Nokia Customer Care 6. Remove the PWB Gently lift and rotate the PWB from the assembly, so that the side key flex cable is removed along with the PWB. Side key flex cable 7. Remove the Side Key Flex Cable Using the SRT-6 opening tool, remove the side key flex cable from the PWB by opening the connection. Do not damage the connector. 8. Remove the Keymat Press the keymat out of the C-cover from behind to remove it.
2255 (RM-97) Disassembly/Assembly 9. Remove the Hinge Grasp the hinge assembly with both hands as shown and pull the hinge away from the A/B-cover assembly to unsnap the hinge pin. Caution: Do not separate the two assemblies after the hinge is opened. 10. Remove the Hinge Flex Cable Note: Prior to separating the two assemblies, free the flex cable through the flex access slot.
2255 (RM-97) Disassembly/Assembly Nokia Customer Care 10. Disassemble the A/B-cover a. Using a SRT-6 tool, unsnap the A/B-cover assembly beginning at the slots on either side of the hinge. b. Continue prying around the assembly to separate the covers. Unsnap here 11. Remove the Display Shield a. Remove the four Torx 6 Plus screws (in any order) using torque driver set to 13 Ncm (+/-2 Ncm) @ 550 RPM.
2255 (RM-97) Disassembly/Assembly b. Gently pry up on the display shield with the SRT-6 tool and rotate upwards to reveal the LCD connector. c. Using the SRT-6 tool unsnap LCD connector and separate the LCD display assembly from the display shield assembly.
Nokia Customer Care 2255 (RM-97) Disassembly/Assembly 12. Remove the Main Flex Cable a. Note of the location of the flex access slot. Gently slide the LCD assembly so that the flex slides through the access slot within the hinge. Separate the two assemblies. 13. Remove the Earpiece Using the blunt end of the tweezers, press the earpiece out of the display shield assembly. Note for Assembly: Do not to damage the earpiece spring contacts once it has been removed.
2255 (RM-97) Disassembly/Assembly 14. Remove the LCD Display a. Open the LCD flex connection on LCD assembly using the SRT-6 tool. b. Lift the display to remove it. Caution: Do not damage the LCD flex cable while separating the components. 15. Remove the Volume Key Using tweezers, lift the volume key to remove it from the C-cover.
Nokia Customer Care 2255 (RM-97) Disassembly/Assembly 16. Remove the Super Grommet Using tweezers, grasp the super grommet to lift and remove it from the D-cover. 17. Remove the DC Jack Use either tweezers or DC plug to lift the DC Jack upwards from its position to remove it.
2255 (RM-97) Disassembly/Assembly 18. Remove the Microphone Using tweezers, pluck the microphone from its position. Note for Assembly: Once removed, always replace the microphone module with a new assembly.
