Flow Chart of Troubleshooting

10-1-3. Sim Part

"Insert SIM" is displayed on the LCD

The voltage is 2.8V at C306?

YES

Is there any signal pin C305, C308, C309?

YES

Check the SIM Card

END

NO

Check the UCD301

NO

Check the UCD301 & UCP201

10-6

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Sharp SGH-T519 manual Sim Part, Voltage is 2.8V at C306?