1255 Technical Training Mechanics Presentation

1. 1255 Technical TrainingMechanics Presentation NMP-CDMA; San Diego Jan, 2006 CompanyConfidential

2. Disclaimer Materials current at time of publish and based upon most current R&D Documentation. Please refer to the latest product TB to determine further handset hardware variations if any. CompanyConfidential

3. Disassembly • Always follow ESD protection guidelines when disassembling and assembling the phones. To avoid potential ESD damage, the recommendation is to treat all assemblies and components as if they are sensitive to ESD. • (1) All Surface Mounted components must be handled as electrostatic sensitive components.  • (2) Prevent static discharge failures to all semiconductors and modules containing ESD sensitive components by using appropriate ESD protective equipment.  • (3) Do not touch the component with bare hands, and always wear a grounded wrist strap or footwear. • For more detailed instructions on handling ESD sensitive components refer to JESD 625-A (Requirements for Handling ESD Sensitive Equipment). CompanyConfidential

4. Remove B-cover • Turn the phone off • Push down on the release button, and slide the B-cover away from the phone • Remove the battery (if installed) B-cover D-cover CompanyConfidential

5. Remove A-cover Undo the A-cover snaps and separate the A‑cover from the D-cover. (Be aware that there are two-sets of snaps retaining both pieces as one unit.) D-cover A-cover Snaps (on both sides) CompanyConfidential

6. Remove Key Pad Undo the A-cover snaps (2 sets) and separate the A‑cover from D-cover being mindful of non self-retaining Key pad. Snaps (2nd set) Locating Posts/Holes CompanyConfidential

7. Remove Screws Use a non-conductive Torx #6 screwdriver to remove the six screws, note the order of removal. Screw can be reuse. 6. 3. 2. 4. 1. 5. Note : (1) Torx spec. 25 ± 2 Ncm, 700rpm(2) Un-Screw Driving Order 6-1 CompanyConfidential

8. Remove UI & Engine Board Carefully grip both sides and gently pull the UI/PWB assembly vertically, so as to free it from D-cover Assembly CompanyConfidential

9. Remove UI Gently lift the UI assembly from PWB, being careful not to damage LCD Connector*. LCD connector*!!! CompanyConfidential

10. Remove LCD Display Separate the LCD from the Display Shield by pressing out the LCD using a clean cloth while keeping the Key Dome Tape clean. CompanyConfidential

11. Remove Earpiece Place Display Shield on table face-down and using a tweezers, gently pick-out the speaker. Be careful not to damage the spring contacts. CompanyConfidential

12. Remove PIFA Antenna Using tweezers, gently unsnap Antenna Assembly and pull up to remove it from the D-cover. Care must be taken not to touch, bent or damage the electrical contacts in any way, if so, antenna assembly must be replaced. SAM Module CompanyConfidential

13. Remove Vibra Motor Using tweezers, grab the vibra motor and gently pull upwards to remove it from the D-cover. CompanyConfidential

14. Remove Microphone Without touching the connectors, use tweezers to grab the microphone and remove it from the D-cover. CompanyConfidential

15. Remove DC Jack Without touching the connectors, use tweezers to grasp the DC jack and pull up to remove it from the D-cover. CompanyConfidential

16. Exploded View CompanyConfidential

17. Assembly • Always follow ESD protection guidelines when disassembling and assembling the phones. To avoid potential ESD damage, the recommendation is to treat all assemblies and components as if they are sensitive to ESD. • (1) All Surface Mounted components must be handled as electrostatic sensitive components.  • (2) Prevent static discharge failures to all semiconductors and modules containing ESD sensitive components by using appropriate ESD protective equipment.  • (3) Do not touch the component with bare hands, and always wear a grounded wrist strap or footwear. • For more detailed instructions on handling ESD sensitive components refer to JESD 625-A (Requirements for Handling ESD Sensitive Equipment). • Be especially careful to avoid contaminating the phone with any dust during assembly CompanyConfidential

18. Install DC Jack DC Jack - Without touching the connectors, use tweezers to push the back edge of the DC Jack into the D-cover. CompanyConfidential

19. Install Microphone Without touching the connectors, use tweezers to push the Microphone Assembly into the D-cover. CompanyConfidential

20. Install Vibra Motor Use tweezers to grasp vibrator motor and insert it into the D-cover. CompanyConfidential

21. Install PIFA Antenna Gently press Antenna Assembly into D-cover, taking care not to touch, bent or damage the electrical contacts in anyway. If so, antenna assembly must be replaced. SAM Module D-cover CompanyConfidential

22. Install Earpiece Using tweezers, place the speaker, being careful not to damage the contacts. Note guide tab orientation. CompanyConfidential

23. Install UI While gently placing the LCD Assembly on the PWB, make sure to properly align the two snaps and LCD connector. Caution: Be careful not to damage LCD Connector. Gently secure LCD connector by squeezing the components together CompanyConfidential

24. Install UI/Engine Board Carefully grip PWB Shield /D-cover Assembly. Aim at pins and holes. CompanyConfidential

25. Install Screw Use a non-conductive screwdriver to reinsert and torque the six screws, note the order of assembly. 6. 3. 2. 4. 1. 5. Note : (1) Torx spec. 25 ± 2 Ncm, 700rpm(2) Un-Screw Driving Order6-1 CompanyConfidential

26. Install Key Pad Gently place the key pad into the A-cover. Locating Post/Hole (3X) CompanyConfidential

27. Install A-cover Align both the A and D-covers together, starting at the top of the phone and then snap together. D-cover A-cover Snaps (on both sides) CompanyConfidential

28. Install B-cover • Install battery. • Place B-cover on phone and slide upwards. • Test the phone and turn it on. D-cover B-cover CompanyConfidential

29. Questions???Thank you for your attention! CompanyConfidential