1. INTRODUCTION ......................................................................................... 1
1.1 Purpose................................................................................................................ 1
3.2 RF Part................................................................................................................. 5
4.1 RF Components ................................................................................................... 7
4.2 RX Trouble ........................................................................................................... 8
4.2.5 Check SAW Filter......................................................................................11
4.3 TX Trouble ..........................................................................................................13
4.4 Power On Trouble ...............................................................................................15
4.5 Charging Trouble ................................................................................................17
4.6 LCD Trouble....................................................................................................... 19
4.6.1 LCD Blue Screen ..................................................................................... 19
4.7 Camera Trouble ..................................................................................................20
4.8 Color LED Trouble ..............................................................................................21
4.10 SIM Trouble.......................................................................................................23
4.11 Ear Jack Trouble ...............................................................................................24
Table of Contents