Table of Contents
Advertisement
3. Sim Part
* Test with Sim
Phone can't access SIM card
Check the pin 1 of
CN104. voltage 3V?
Check the SIM
connector's (CN104)
connection to SIM
Check the circuit
around CN104 input
Check the circuit
around U401 output
and voltage supply
SGH-P730 Flow Chart of Troubleshooting and Circuit Diagrams
Yes
Yes
card
Yes
circuitry
Yes
circuitty
Yes
END
No
Check the circuit related to U101
No
Resolder or change CN104
No
Check the related circuit of CN104
No
Check the related circuit of U401 and
2-5
U101
Advertisement
Table of Contents
