Lenovo Moto Z4 Installation and operating manual

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Lenovo Moto Z4
Lenovo Moto Z4
Level 2 – Service and Repair Manual

Lenovo Moto Z4
Level 2 – Service and Repair Manual
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REVISION HISTORY
Revision
Date
Notes
1
05/09/2019
Initial release.

Lenovo Moto Z4
Level 2 – Service and Repair Manual
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TABLE OF CONTENTS
Revision History ............................................................................................................................................................2
List of Tables.................................................................................................................................................................6
Table of Figures ............................................................................................................................................................6
Safety Information ........................................................................................................................................................7
Cautions and Warnings .................................................................................................................................................7
Battery Safety Guidelines ..............................................................................................................................................7
Soldering Safety Guidelines...........................................................................................................................................7
Introduction...................................................................................................................................................................8
External Views ..............................................................................................................................................................8
Exploded Views...........................................................................................................................................................10
Disassembly and Recovery ........................................................................................................................................13
Disassembly and Recovery Map..................................................................................................................................13
Tools Required for Disassembly ..................................................................................................................................14
SIM/SD Tray Removal .................................................................................................................................................16
IMEI Label Removal.....................................................................................................................................................17
SIM/SD Tray Water Detection Label (WDL) Inspection..................................................................................................18
Display Removal .........................................................................................................................................................19
Display Foil Cushion Removal......................................................................................................................................29
Proximity Sensor Grommet Removal ...........................................................................................................................31
Side-Key Flex Foam Removal ......................................................................................................................................33
WDL Inspection...........................................................................................................................................................36
Fingerprint Sensor (FPS) Removal ...............................................................................................................................37
Battery Cable Cover Removal ......................................................................................................................................39
Foil Cushion Removal..................................................................................................................................................40
Coax Cable Cover Removal..........................................................................................................................................41
Copper Foil Heat Spreader Removal ............................................................................................................................42
Thermal Pad Removal .................................................................................................................................................43
Audio Bracket Removal ...............................................................................................................................................45
WDL Inspection...........................................................................................................................................................47
Top Carrier Removal ...................................................................................................................................................48
Top Carrier Tape Removal...........................................................................................................................................50
Rear-Facing Imager Removal ......................................................................................................................................52
Main PCB Support Foam Removal ............................................................................................................................... 57
Earpiece Speaker Gasket Removal ..............................................................................................................................60
PCB Coax Cable Removal ............................................................................................................................................61
Headset Jack Grommet Removal.................................................................................................................................62
USB Grommet Removal............................................................................................................................................... 63

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Rear-Facing Imager Foam Removal.............................................................................................................................69
Battery Removal..........................................................................................................................................................70
Battery Pad Removal...................................................................................................................................................72
Coax Cable Removal ...................................................................................................................................................73
Rear-Facing Imager Lens Removal..............................................................................................................................76
Flash Lens Removal ....................................................................................................................................................78
Flash PCB Removal .....................................................................................................................................................80
Parts Refresh ..............................................................................................................................................................86
Tools Required for Parts Refresh .................................................................................................................................86
Assembly.....................................................................................................................................................................94
Assembly Map ............................................................................................................................................................94
Tools Required for Assembly.......................................................................................................................................95
Rear Inlay Assembly....................................................................................................................................................97
Rear Inlay Assembly: Manual Method........................................................................................................................101
Rear Housing WDL Assembly ....................................................................................................................................104
Flash Lens Assembly.................................................................................................................................................105
Rear-Facing Imager Lens Assembly ..........................................................................................................................107
Flash PCB Assembly..................................................................................................................................................109
Rear-Facing Imager Foam Assembly .........................................................................................................................111
Front-Facing Flash Grommet Assembly .....................................................................................................................112
Vibrator Assembly .....................................................................................................................................................114
Main PCB WDL Assembly ..........................................................................................................................................117
Headset Jack Grommet Assembly .............................................................................................................................121
USB Grommet Assembly ...........................................................................................................................................122
PCB Coax Cable Assembly ........................................................................................................................................123
Earpiece Speaker Gasket Assembly...........................................................................................................................125
Front-Facing Imager Assembly..................................................................................................................................126
Thermal Pad Assembly..............................................................................................................................................127
Copper Foil Heat Spreader Assembly.........................................................................................................................129
Main PCB Assembly ..................................................................................................................................................132
Coax Cable Assembly................................................................................................................................................134
Battery Pad Assembly ...............................................................................................................................................136
Battery Assembly ......................................................................................................................................................137
Side-Key Flex Foam Assembly ..................................................................................................................................140
FPS Assembly ...........................................................................................................................................................142
Battery Cable Cover Assembly...................................................................................................................................145
Coax Cable Cover Assembly ......................................................................................................................................146
Microphone Bracket Assembly ..................................................................................................................................147
Audio Bracket Assembly............................................................................................................................................ 149

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Top Carrier WDL Assembly........................................................................................................................................152
Proximity Sensor Assembly .......................................................................................................................................153
Top Carrier Tape Assembly .......................................................................................................................................155
Top Carrier Assembly................................................................................................................................................157
Front-Facing Imager Grommet Assembly ..................................................................................................................158
Battery Graphite Assembly ........................................................................................................................................159
Display Assembly......................................................................................................................................................165
IMEI Label Assembly .................................................................................................................................................170
SIM/SD Tray Assembly ..............................................................................................................................................171

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LIST OF TABLES
Table 1. External Views Parts List ...................................................................................................................................9
Table 2. Assembly Exploded View Parts List..................................................................................................................10
TABLE OF FIGURES
Figure 1. External Views..................................................................................................................................................8
459BFigure 2. Assembly Exploded View................................................................................................................................10

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SAFETY INFORMATION
Cautions and Warnings
Electrostatic Discharge
The phone components may be damaged by electrostatic discharge (ESD). Always use an ESD mat and ground strap
when working with internal components.
Battery Safety Guidelines
Handle Battery with care. Ensure Battery edges and surfaces are not dented or deformed. If the Battery Pack is dropped
to the floor, it may be internally damaged and must be scrapped.
Ensure all surfaces, fixtures, and phone components contacting the Battery are smooth and clean.
Ensure Battery and its insulation are not damaged (e.g. scratched, dented, punctured) prior to and throughout assembly.
Prior to assembly, ensure Battery edges and surfaces are not dented or deformed, and that fixtures and parts that will
contact the Battery are free of foreign material.
Ensure screws and screwdrivers do not contact the Battery.
Failure to adhere to Safety Critical Note(s) may increase risk of rupture, burning, or failure to function safely when used
by the customer.
Soldering Safety Guidelines
Handle the Soldering Iron with care. Staff engaged in soldering tasks not involving BGA components must be trained
and work in accordance with the requirements of IPC-A-610 and IPC-7711, and work in accordance with J-STD-001.
Ensure that the components used for electrical repair meet the following requirements:
Solder paste is tin- and lead-free.
Solder wire is lead-free.
Flux, whether liquid or gel, is No Clean RMA flux.

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Level 2 – Service and Repair Manual
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INTRODUCTION
External Views
Figure 1. External Views

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Table 1. External Views Parts List
Reference #
Description
1
SIM/SD Tray
2
Secondary Microphone
3
Top Carrier
4
Speaker Mesh
5
Display
6
Volume Keys
7
Power Key
8
Rear-Facing Imager Lens
9
Rear-Facing Imager
10
Flash Lens
11
MOD Contacts
12
Primary Microphone
13
USB Port

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Level 2 – Service and Repair Manual
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Exploded Views
459BFigure 2. Assembly Exploded View
Table 2. Assembly Exploded View Parts List
Reference #
Description
Recovery Part
1
Stingray FRU TP LCM ASSY
YES
2
ACCY,BAT,ACCY, BAT,3600mAh, KZ40, ATL426
NO
3
Stingray FRU MB NA 4+128G SS
Stingray FRU MB NA VZW 4+128G SS
YES
4
Stingray FRU FLASH SUB Board
YES
5
Stingray RearCVR FLSHGRY Etching NA
Stingray RearCVR FLSHGRY Etching VZW
Stingray RearCVR WHT Etching VZW
Stingray FRU RearCVR FLSHGRY
Stingray FRU RearCVR WHITE
YES
6
HSG,REAR,STINGRAY,HSG_INLAY_ FOLES_BLACK
LENS,OTHR,INLAY FOLES BLK AG VZW
HSG_INLAY_ FOLES_WHITE,AG,VZW
YES
7
MDL,CAMR,0.8um
YES
8
MDL,CAMR,24M,CMOS-MIPI,O-film
YES
9
VIBR,LIN,R4xH3.25,0.205KHz,Vibrator,R4xH
NO
10
Stingray P Sensor OP1 FPCA,15.56x10.44mm
NO
11
AU,SPKR,TBD,8OHM,BX,1.5W at 8OHM,800Hz,9
YES
12
HSG,SIM,STINGRAY,ASSY_SNGL_SIM_TRAY_ BLA
ASSY_SNGL SIM TRAY_ OLES_WHITE
YES
13
LENS,MN,STINGRAY,CAMERA_LENS_ FOLES_BLAC
YES
14
LENS,FLSH,STINGRAY,FLSH LENS_FOLES
YES
15
MDL,FNGRPRT,Shelby2,FOD,Goodix9518,Qtech
YES
13 627 5
4
34
32 15
21
11
24
23 38
8
716 37 39
22
20
2
19 1
40
41
12
10
14
26
3
31 17
25
35 36
30
18
9
28
29