TABLE OF CONTENTS:

1: Introduction …………………………………………………………………..3
1.1: K550…………………………………………………………………………..………………………………………… ………………… 3
1.2: K550 …………………………………………………………………………………………………………………………………… ……..4
1.3: Equipment……………………………………………………………………5
1.4: General cautions …………………………………………………………..6
2 : Disassembly ……………………………………………………………………7
2.1: Overview ……………………………………………………………………..8
2.1.1: Battery Cover & Battery………………………………………………..9
2.1.2: Speaker Cover …………………………………………………………….11
2.1.3: Front Cover ……………………………………………………………….12
2.1.4: Keypad ……………………………………………………………………..14
2.1.5: PCBA ………………………………………………………………………..15
3: Replacements………………………………………………………………….16
3.1: Battery Cover………………………………………………………………..17
3.2: Speaker Cover ………………………………………………………………17
3.3: Front Cover …………………………………………………………………17
3.4: Keypad ……………………………………………………………………….17
3.5: PCBA …………………………………………………………………………………………………………………………………… ….17
3.6: Back Cover…………………………………………………………………..17
3.7: Co-brand Label ……………………………………………………………18
3.8: RF Cap………………………………………………………………………..20
3.9: Vibrator……………………………………………………………………..21
3.10: Power Key …………………………………………………………………22
3.11: Volume Key………………………………………………………………..23
3.12: Music Key…………………………………………………………………..25
3.13: Camera Key………………………………………………………………..27
3.14: Ear Speaker “Receiver” Tape…………………………………………..29
3.15: Ear Speaker “Receiver”………………………………………………….30
3.16: LCD …………………………………………………………………………………………………………………………………… …..31
3.17: Frame ……………………………………………………………………………………………………………………………..… …..35
3.18: Dome Assy………………………………………………………………….37
3.19: Loudspeaker……………………………………………………………….38
3.20: Flash LED / BT Antenna Frame………………………………………40
3.21: Flash LED……………………………………………………………………42
3.22: BT Antenna ………………………………………………………………..43
3.23: Shield Lid Main BB……………………………………………………….44
3.24: Camera ……………………………………………………………………..46
3.25: Antenna …………………………………………………………………….49
3.26: SIM Tape……………………………………………………………………51
3.27: Liquid Intrusion Indicator …………………………………………..52
3.28: KRH Label …………………………………………………………………53
4: Reassembly …………………………………………………………………..54
4.1: Overview ……………………………………………………………………55
4.1.1: PCBA ………………………………………………………………………56
4.1.2: Keypad …………………………………………………………………..57
4.1.3: Front Cover …………………………………………………………….58
4.1.4: Speaker Cover …………………………………………………………59
4.1.5: Battery & Battery Cover…………………………………………….60
5 Revision history ……………………………………………………………62

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