1
Table of Content
CHAPTER 1
Cellular Communication
Coverage Concept 2
GSM Network Architecture 3
Subscriber Identity Module 4
SIM Application Toolkit 5
Extended GSM 900 - EGSM 5
WAP 6
CHAPTER 2
Level 2 Service Guide
Introduction 7
General Information 7
Different between A50 and 1168 7
A50 Series Technical Information 8
Accessories 10
A50/1168 Mechanical Diagram 12
Mechanical Concept 13
A50/1168 Spare Parts Level 1 & Level 2 14
Disassemble the A50/1168 15
Assemble the A50/1168 19
Mobile Software Programming 22
Customer Specific Initialization 25
International Mobile Equipment Identity 25
Phone Unblocking 26
Internet Solution 27
CHAPTER 3
Siemens Service Equipment
Introduction 28
Other equipment 30
Software Installation 31
Configuring the test software 32
Running the test sequence 33
ANNEX A – Test SIM Information 37
ANNEX B – Service Equipment List 38
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