Garmin NUVIFONE M20 User manual

TSD ■Service Manual
NÜVIFONE M20
Service Manual (L1&L2)

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1EQUIPMENT NEED ........................................................................................................................3
2INTRODUCTION.............................................................................................................................4
2.1 ABOUT THIS SERVICE MANUAL......................................................................................................4
2.2 OVERVIEW ......................................................................................................................................4
2.3 PRODUCT SPECIFICATION...............................................................................................................5
3DISASSEMBLY / ASSEMBLY PROCEDURE................................................................................6
3.1 INTRODUCTION ...............................................................................................................................6
3.1.1 RECOMMENDED TOOLS..................................................................................................................6
3.2 EXPLODED DIAGRAM......................................................................................................................7
3.3 DISASSEMBLY PROCEDURE.............................................................................................................8
3.4 ASSEMBLY PROCEDURE ................................................................................................................15
4MMI TESTING...............................................................................................................................22

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1 Equipment Need
NO#
Equipment
Description
Garmin ASUS Part#
Supplier
Quantity
Remarks
1
Computer
None
None
1
2
Enabled SIM
Card
None
None
1
3
NÜVIFONE
M20
80AM-S01500
Garmin Asus
1
4
Battery
07G01679345
Garmin Asus
1
5
USB
download
cable
14G000502010
Garmin Asus
1
6
Screwdriver
(T5)
None
None
1
7
Tweezers
None
None
1
8
Plastic
Blade
None
None
1
9
ESD Static
Strap
None
None
1
10
ADAPTER
04G267016301
Garmin Asus
1

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2 Introduction
2.1 About This Service Manual
Using this service manual and the suggestions contained in it assures proper installation,
operation, and maintenance of the NÜVIFONE M20. This manual aids service personnel in
testing and repairing NÜVIFONE M20. Service personnel should be familiar with electronic
assembly, testing, and troubleshooting methods.
2.2 Overview
M20 is designed for the young generation who enjoys
fun interaction and social connections.
The asymmetrical shape is emphasized by bright,
youthful color. The main body is a simple black, with
only matte finish texture for the hand to recognize
navigation and keys.
All function keys are incorporated on the opposite side
in a metallic strip in order not to interfere with the
general image.

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2.3 Product Specification

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3 Disassembly / Assembly Procedure
3.1 Introduction
This section describes how to disassemble NÜVIFONE M20. Many of the electronic components
used in this phone are vulnerable to damage due to static discharge. Ensure adequate static
protection is in place when handling, shipping, and servicing any internal components.
3.1.1 Recommended Tools
�Torque Screw Driver (T5 type, torque is set to 1.2kg-cm)
�Tweezers
�Plastic blade
�ESD Static Strap

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3.2 Exploded Diagram
(If this picture cannot be viewed clearly, please zoom in this page.)

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3.3 Disassembly Procedure
The following set of diagrams will demonstrate the correct sequence and action to disassemble
NÜVIFONE M20.
Step 1
Remove the stylus (PN: 13GAM0110M090-1).
Step 2
Push and remove the bottom case away (PN: 13GAM012AP010-1).
Step 3
Take away the battery (PN: 07G016793450).
1
2
2
1
1
1
2

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Step 4
Pry the hooks on the stylus cover (PN: 13GAM0120P020-1) and remove it.
Step 5
Remove 4 screws (PN: 13GMBK0K060B SCREW M1.6*6L X 3, T5Screw Driver;
13GMBK0K050W SCREW M1.6*5L X 1, T5 Screw Driver) on the middle case assy
(13GAM011AP010-1). Pry the right side and the top side of the middle case assy to release it
from the hooks by a plastic blade. Then separate the middle case from the module.
M1.6*6L
M1.6*5L
1
2
2
1

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Step 6
Remove the speaker (PN: 04G171302500) in the middle case assy by a plastic blade. Then
remove the car mount connector (PN: 12G201100300).
3
4
5
1
2
3

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Step 7
Tear off the camera mylar (PN: 13GAM0110L040-1). Open the camera connector and disconnect
the camera FPC. Then remove the camera module (PN: 04G624000600).
Step 8
Tear off the PCB mylar (PN: 13GAM0110L130-1). Disconnect the LCD FPC and the keypad
FPC.
LCD FPC
Keypad FPC
Keypad FPC
1
2
3
4
1
2
3
4

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Step 9
Remove 1 screw (PN: 13GMBK0K030B-2 M1.6*3L X 1) on the main board. Remove the main
board (PN: 60-AM01MB1000-B01) from the top case assy.
Step 10
Remove the MIC rubber (PN: 13GAM0110L120-1) by a pair of tweezers.
Step 11
Remove the EMMC spacer (PN: 13GAM0110L080-1).
1
2
3
1
2
1

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Step 12
Remove the receiver (PN: 04G171302400) in the top case assy by pair of tweezers.
Step 13
Separate the LCD panel and touch panel (90R) from the top case.
1
2
1
2
3
1
1
2
2
3
3
1
2
3
Push the LCD panel here by
order 1, 2, 3
Top Case and LCD panel &
touch panel separated
Pay attention to the FPC here.
Pls do not press it too hard. Fold it
gently when push the panel.

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Step 14
Pry the keypad (90R) module by plastic blade and remove the keypad from the top case.
4
1
2
3

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3.4 Assembly Procedure
Assembly is carried out in the exact reverse sequence as the disassembly.
Step 1
Install the keypad module (90R, Adhesive should be on keypad FPC.) on the top case.
Step 2
Engage the LCD module (90R) with the top case assy.
1
2
1
2
3
4
Please pay attention to the FPC
here. Do not fold it too hard.

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Step 3
Install the receiver (PN: 04G171302400) in the top case.
Step 4
Paste the EMMC spacer (PN: 13GAM0110L080-1).
Step 5
Install the MIC rubber (PN: 13GAM0110L120-1) on the main board.
3
1
2
1
1
2
4
Press the panel gently to make it
tightly engage with the top case.

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Step 6
Install the main board (PN: 60-AM01MB1000-B01) in the top case module. Pay attention to the
LCD FPC, please thread the FPC as Fig3.from the main board. Secure 1 screw (PN:
13GMBK0K030B-2 M1.6*3L X 1) on the main board.
Step 7
Connect the keypad FPC and close its connector. Connect the LCD FPC with the main board.
Then paste the PCB mylar (PN: 13GAM0110L130-1).
Keypad FPC
Keypad FPC
1
2
4
1
2
3

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Step 8
Install the camera module (PN: 04G624000600) on the main board, close its connector. Paste the
camera mylar (PN: 13GAM0110L040-1).
LCD FPC
3
4
1
2
3
4
5

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Step 9
Install the car mount connector (PN: 12G201100300). Then place the speaker (PN:
04G171302500) in the middle case assy.
Step 10
Install the middle case assy (PN：13GAM011AP010-1) and press four side to fix it in the latches.
Pay attention to the hold key as Fig3.on the main board and middle case. Please push them softly
to the same direction. Secure 4 screws (PN: 13GMBK0K060B SCREW M1.6*6L X 3, T5Screw
Driver; 13GMBK0K050W SCREW M1.6*5L X 1, T5 Screw Driver) on the middle case assy.
1
2
3
1
22
3

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Step 11
Install the stylus cover (PN: 13GAM0120P020-1).
Step 12
Install the battery (PN: 07G016793450).
M1.6*6L
M1.6*5L
4
1
2
1
2