Lenovo X2 Service Manual

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Lenovo X2

Service Manual

LENOVO

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Contents

1. How to assemble and disassemble LENOVO X2 ..................................................................... 3

1.1 The phone disassemble guide ........................................................................................ 3

1.2 The phone assemble guide ............................................................................................ 6

2. Main board and Sub FPC layout introduction ........................................................................... 7

2.1 Main board top view ..................................................................................................... 7

2.2 Main board bottom view ............................................................................................... 8

2.3 Sub board top view ....................................................................................................... 8

2.4 Sub board bottom view ................................................................................................. 9

3. Troubleshooting Procedure ..................................................................................................... 10

3.1 No boot ........................................................................................................................ 10

3.2 Touch panel have no effect .......................................................................................... 11

3.3 Charging anomaly ....................................................................................................... 12

3.4 Calling receiver sound has poor quality ...................................................................... 14

3.5 Speaker has no sound .................................................................................................. 15

3.6 LCD has no display ..................................................................................................... 16

3.7 Phone crash ................................................................................................................. 18

3.8 Key has no effect ......................................................................................................... 19

3.9 Communication signal abnormality ............................................................................ 20

3.10 Calling receiver has no sound ..................................................................................... 21

3.11 Microphone has no effect ............................................................................................ 22

3.12 Display color distortion ............................................................................................... 23

3.13 Speaker tone distortion ................................................................................................ 24

3.14 Speaker tone smaller ................................................................................................... 25

3.15 No charging ................................................................................................................. 26

3.16 Camera has no effect ................................................................................................... 27

3.17 Auto shutdown ............................................................................................................ 29

3.18 SIM Card has not be detected ..................................................................................... 30

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1. How to assemble and disassemble

LENOVO X2

1.1 The phone disassemble guide

1) Take out the sim-tray

2) Disassemble the bottom of decoration
Use tweezer from the top of decoration and the battery cover gap（the back right side with the red

spot mentioned below）, released the hooks remove the decoration。

3） Disassemble the rear housing assemble

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Note：1，The solid red dots are hooks position

2， Disassemble tools：Tweezer、Disassemble bar；in order to protect the cover from

destroy ,the disassemble bar insert just about 2mm

Using the disassemble bar to pry hooks
Released the hook1 from the lower left corner . The direction of from bottom to top to released

the hooks

4）Disassemble the main board

Disassemble the battery connector pressure Release the battery connector
sheet steel，2 screws

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Release brackets Release the TP connector , LCD connector and

main FPC

Remove screws as the solid red dots position
5）Disassemble the sub board

Remove the SPK BOX , 3 screws red arrow board

Remove the RF cable connector from sub
Remove the sub board slowly, pay attention to protect the shrapnel and the hook ( The solid red

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dots location)

6) Disassemble battery

If you want disassemble the battery, need to pull out the battery adhesive. The red arrow location

1.2 The phone assemble guide

Assemble and disassemble process is opposite

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2. Main board and Sub FPC layout

introduction

2.1 Main board top view

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2.2 Main board bottom view

2.3 Sub board top view

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2.4 Sub board bottom view