Flow Chart of Troubleshooting9-59-1-3. Sim Part"Insert SIM" is displayed on the LCDIs there any signalpin #2,3,4 ofSIM300?Check the UCP300Check the UCP201 & UCP300ENDNoYesNoYes12Check the SIM CardThe voltage is 2.8Vat the pin#1 ofC304 C307C306C303R300C305NCNC10VCC12 VCC5 VPPSIM300CLK3GND4I/O6NC78 NC9SIM_RSTVSIMSIM_CLKSIM_IO

Repair Precaution

ESD(Electrostatically Sensitive Devices) Precaution

Specification 2-1. GSM General Specification

Product Function

Array course control

Array course control 4-1. Downloading Binary Files

S/W Downloader Program

Exploded View and Parts list

Cellular phone Parts list

Disassembly

MAIN Electrical Parts List

Block Diagrams

PCB Diagrams

Flow Chart of Troubleshooting

SIM Part

Microphone Part

DCS RX

PCS RX

PCS TX

Reference data

Samsung SGH-X530 Service Manual

charging the battery

important safety precautions

SGH-X530