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
