1. SAN DIEGO MECHANICS Chassis Assy

2. SAN DIEGO MECHANICS 6. Main Chassis Assembly For In-mold LDS Main Antenna CodeXXXXXX (? AT&T) Option 1-1: ItemPartMaterial NMP Code Drawing Number Designer 1Co-molded + Paint (with masking) EXL 1414 2 Die-casting Metal Insert (Mg)+ passivation Mg AZ91D 3Conductive Gasket (5 PIECES)Gore GS 8000 4GPS Antenna RadiatorFlex 5Camera and Flash Lens Assy 1 Camera and Flash Lens Protective Tape 2 Camera and Flash Lens Dual shot, PMMA + pad printing + top coat 3 Camera and Flash Lens Adhesive 4 Camera Gasket 6 Flash Module PWBWhite FR4 1 Flash 7 Touch Flex Connector Gasket Poron type 0.5mm thick 8Petra Earpiece 9Earpiece Adhesive and Gasket Poron type 0.5mm thick 10HSJ 11 HSJ and Earpiece Gasket Poron type 0.5mm thick 12 Secondary MIC Gasket 13IHF Back Volume Gasket Poron type 0.5mm thick 14 Adhesive for Flash PWB 15 Battery compartment gasket (2 pieces)Poron type 0.5mm thick 16 Battery Deck0.15MM, SUS 301 17IHF Speaker Adhesive + Gasket Poron type 0.5mm thick 18 IHF speaker (MEAN) 19IHF and Secondary MIC Mesh 20 SIM and SD Door Rubber 21 Pogo pins for NFC (2 pcs) 22 MIC Deco film 1 Adhesive for MIC Deco Film

3. SAN DIEGO MECHANICS 6. Main Chassis Assembly For In-mold LDS Main Antenna CodeXXXXXX (? AT&T) Option 1-2: ItemPartMaterial NMP Code Drawing Number Designer 1Co-molded + Paint (with masking) EXL 1414 2 Die-casting Metal Insert (Mg)+ passivation Mg AZ91D 3Conductive Gasket (5 PIECES)Gore GS 8000 4GPS Antenna RadiatorFlex 5Camera and Flash Lens Assy 1 Camera and Flash Lens Protective Tape 2 Camera and Flash Lens Dual shot, PMMA + pad printing + top coat 3 Camera and Flash Lens Adhesive 4 Camera Gasket 6 Flash Module PWBWhite FR4 1 Flash 7 Touch Flex Connector Gasket Poron type 0.5mm thick 8Petra Earpiece 9Earpiece Adhesive and Gasket Poron type 0.5mm thick 10HSJ 11 HSJ and Earpiece Gasket Poron type 0.5mm thick 12 Secondary MIC Gasket 13IHF Back Volume Gasket Poron type 0.5mm thick 14 Adhesive for Flash PWB 15 Battery compartment gasket (2 pieces)Poron type 0.5mm thick 16 Battery Deck0.15MM, SUS 301 17IHF Speaker Adhesive + Gasket Poron type 0.5mm thick 18 IHF speaker (MEAN) 19IHF and Secondary MIC Mesh 20 SIM and SD Door Rubber 21 Pogo pins for NFC (2 pcs) 22 MIC Deco film 1 Adhesive for MIC Deco Film 23 Battery cover snap; (2 pieces)0.3 mm SUS 301

4. SAN DIEGO MECHANICS 21 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 20 Items 22, 23 not shown

5. SAN DIEGO MECHANICS 6. Main Chassis Assembly For Carrier LDS Main Antenna CodeXXXXXX (? AT&T) ItemPartMaterial NMP Code Drawing Number Designer 1Diecasting Co-molded + paint (with masking) EXL 1414 2 Die-casting Metal Insert + Passivation + 4 threaded holes Mg AZ91D 3Conductive Gasket (5 PIECES)Gore GS 8000 4GPS Antenna RadiatorFlex 5Camera and Flash Lens Assy 1 Camera and Flash Lens Protective Tape 2 Camera and Flash Lens Dual shot, PC or PMMA + pad printing + top coat 3 Camera and Flash Lens Adhesive 4 Camera Gasket 6 Flash Module PWBWhite FR4 1Flash 7 Touch Flex Connector Gasket Poron type 0.5mm thick 8Petra Earpiece 9Earpiece Adhesive and Gasket Poron type 0.5mm thick 10HSJ 11 HSJ and Earpiece BV Gasket Poron type 0.5mm thick 12 Secondary MIC Gasket Poron type 0.5mm thick 13IHF Back Volume Gasket Poron type 0.5mm thick 14 Adhesive for Flash PWB 15 Battery compartment gasket (2 pieces) Poron type 0.5mm thick 16 Battery Deck0.15MM, SUS 301/304 17Screw Insert Same as A cover type 18 Antenna Carrier Adhesive 19IHF and Secondary MIC Mesh 20 SIM and SD Door Rubber 21 Pogo pins (2 pcs) 22 MIC Deco Film 1 Adhesive for MIC Deco Film Option 2-1:

6. SAN DIEGO MECHANICS 6. Main Chassis Assembly For Carrier LDS Main Antenna CodeXXXXXX (? AT&T) ItemPartMaterial NMP Code Drawing Number Designer 1Diecasting Co-molded + paint (with masking) EXL 1414 2 Die-casting Metal Insert + Passivation + 4 threaded holes Mg AZ91D 3Conductive Gasket (5 PIECES)Gore GS 8000 4GPS Antenna RadiatorFlex 5Camera and Flash Lens Assy 1 Camera and Flash Lens Protective Tape 2 Camera and Flash Lens Dual shot, PC or PMMA + pad printing + top coat 3 Camera and Flash Lens Adhesive 4 Camera Gasket 6 Flash Module PWBWhite FR4 1Flash 7 Touch Flex Connector Gasket Poron type 0.5mm thick 8Petra Earpiece 9Earpiece Adhesive and Gasket Poron type 0.5mm thick 10HSJ 11 HSJ and Earpiece BV Gasket Poron type 0.5mm thick 12 Secondary MIC Gasket Poron type 0.5mm thick 13IHF Back Volume Gasket Poron type 0.5mm thick 14 Adhesive for Flash PWB 15 Battery compartment gasket (2 pieces) Poron type 0.5mm thick 16 Battery Deck0.15MM, SUS 301/304 17Screw Insert Same as A cover type 18 Antenna Carrier Adhesive 19IHF and Secondary MIC Mesh 20 SIM and SD Door Rubber 21 Pogo pins (2 pcs) 22 MIC Deco Film 1 Adhesive for MIC Deco Film 23 Battery cover snap; (2 pieces)0.3 mm SUS 301 Option 2-2:

7. SAN DIEGO MECHANICS 21 19 17 18 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 20 Items 22, 23 not shown

8. SAN DIEGO MECHANICS Chassis Over-mould Chassis is magnesium main part overmoulded with plastic. Interface between plastic and magnesium is to be advised by supplier but must respect no metal areas indicated below. No metal outside this surfaces No metal outside this surfaces metal OK here These two pogo pin holes need to be formed by plastic

9. SAN DIEGO MECHANICS 2 angled threaded holes to suite M1.4 screw. 2 threaded holes to suite M1.4 screw.

10. SAN DIEGO MECHANICS class 2 surface All surfaces class 3 except indicated. Finishing requirements Magnesium needs full conductive coating All of Class 2 surface painted except where indicated for grounding Paint here x 5 NO Paint here x 5

11. SAN DIEGO MECHANICS Fixing of Battery Deck to Chassis? Preferred to use a method without clips Welding Adhesive (tape or liquid) Any other methods that can be suggested

12. SAN DIEGO MECHANICS Option 1-1 and Option 2-1 Item 1 Would like to insert molded into Chassis. Please suggest interlocking features Or suggest other ways to incorporate the features

13. SAN DIEGO MECHANICS Option 1-2 and Option 2-2 Item 23 #PartMaterial 23Battery cover snap0.3 mm SUS 301 Assembled into Chassis. Please provide manufacturing feedback on spring shape and way to assemble