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SGH-E630 Flow Chart of Troubleshooting
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7-
3
2. Initial
R300 (RSTON) ="H"?
Initial Failure
Check the circuit related to reset
END
No
Yes
Is U403 pin 4,6
(memory CE) OK?
Yes
Yes
No
Check the U403
Check the circuit around
LCD & U403 (Short or not solder)
Yes