![background image](http://html.mh-extra.com/html/samsung/sgh-t200/sgh-t200_service-manual_1191088023.webp)
SAMSUNG Proprietary-Contents may change without notice
5-
4
SGH-T200 Flow Chart of Troubleshooting
4. Sim
Check the pin 1, 5 of
CN401. voltage is 2.8V ?
Phone can't access SIM card
Check the CN401's
Connection to SIM card
Check the circuit related to U401
Resolder CN401
Check the circuit around U304
(Serial EEPROM) and data stored in it
END
No
Yes
Yes
Yes
Yes
No