C O N T E N T S1. Safety Precautions1-1. Repair Precaution......................................................................................................1-11-2. ESD(Electrostatically Sensitive Devices) Precaution...............................................1-22. Specification2-1. GSM General Specification.......................................................................................2-12-2. GSM Tx Power Class...............................................................................................2-23. Product Function4. Array course control4-1. Software Adjustments................................................................................................4-14-2. Software Downloading...............................................................................................4-25. Exploded View/Disassembly & Assembly Instructions5-1. Cellular phone Exploded View..................................................................................5-15-2. Cellular phone Parts list............................................................................................5-25-3. Disassembly & Assembly Instructions......................................................................5-46. MAIN Electrical Parts List7. Block Diagrams7-1. RF Solution Block Diagram......................................................................................7-17-2. Logic Block Diagram.................................................................................................7-28. PCB Diagrams