Table of Contents
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Flow Chart of Troubleshooting
(2) SLAVE
"Insert SIM is displayed on the LCD
SIM800 #1 = H ?
Check SIMCLK Signal On
#3 of SIM800 in a few
After SIM Card insert,
Check the SIM Card
SIMIO_S
SIM_IO_2
14
16
15
13
1
NCA
COMD
SIMIO_M
2
NOD
SIM_SEL
A-B_IN
3
C-D_IN
SIMCLK_S
NOB
4
NCC
SIM_CLK_2
COMB
5
7
8
6
SIMCLK_M
SIM SELECT
Yes
Yes
After Power On,
second
Yes
SIM800 #2 = "H"
Yes
END
+VDD_USB_3.3V
R205
C217
+SIMVCC_M
12
+SIM_VCC_2
11
+SIMVCC_S
10
9
SIMRST_M
U201
SIM_RST_2
SIMRST_S
[SLAVE]
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Resolder or change
No
Check the clock
No
Replace PBA
SIM800
10-6
UCP200
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