Samsung galaxy Not 2 GT-N7100 WCDMA Band5 / GSM 850 RX 3G Network Not Working Solution Schematic,Circuit,Diagram
Samsung galaxy Not 2 GT-N7100 WCDMA Band5 / GSM 850 RX 3G Network Not Working Solution Step By Step
Step1
NORMAL CONDITION
catch the channel?
Step 2
Check C103 ≤ -65dBm ?
CHECK soldered
RFS100, L102,C103,C106
Step 3
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Resolder or change
U100, C101
Step 4
Check C118, L107
≥ -65dBm ?
Resolder or change
C118, L107
Step 5
Check component
soldering status OK at
F100
Resolder or change
F100
Step 6
Check F100 PIN 20,21
≥ -65dBm
Resolder or change
F100
Step 7
Check the voltage at
{C150 = VOUT_CHARGER ?}
& {C165, C166, C167
= VOUT_CHARGER?}
& {C149, C174 = 2.85V ?}
& {C144, C172 = 2.65V ?}
& {C148, C177 = 1.8V?}
& {C147, C175, C173 = 1.2V?}
Resolder or change
U104
Step 8
Check the freq. at
OSC100 PIN 1,3: 26MHz ?
Change or resolder
OSC100
Step 9
WCDMA BAND5/GSM850
Receiver is O.K?
Resolder or change
UCP300
Step 10
END
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Samsung Galaxy Not 2 GT-N7100 WCDMA Band5 GSM 850 RX 3G Network not working Solution
Samsung Galaxy Not 2 GT-N7100 WCDMA Band5 / GSM 850 RX 3G Network not Starting Solution
Samsung Galaxy Not 2 GT-N7100 WCDMA Band5 / GSM 850 RX 3G No Service Solution
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