Sim Part - Samsung SGH-X480 Service Manual

3. SIM Part

" Insert SIM "is displayed on the L C D
A re there any Signals at
pin#N 9, #R 10, #P10 of U 100?
A re there any Signals at
pin#K 12, #K 11, #K 14, #J 11 of
C heck the SIMC ard
Y es
Y es
C N 100?
Y es
E N D
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N o
N o
7- 3
F low Chart of Troubleshooting
C heck the U 600
C heck the U 100