Samsung galaxy Not 2 GT-N7100 WCDMA Band2 GSM1900 RX 3G Network Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy Not 2 GT-N7100 WCDMA Band2 GSM1900 RX 3G Network Not Working Solution Step By Step

Step 1


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 L132
≥ -65dBm ?

Resolder or change
L132

Step 5

Check component
soldering status OK at
F100

Resolder or change
F100

Step 6

Check F100 PIN 16, 17
≥ -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 BAND2/GSM1900
Receiver is O.K?

Resolder or change
UCP300

Step 10

END


Unofficial Support Site For This Phone By welcome Zone Haldwani 

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Samsung Galaxy  Not 2 GT-N7100 WCDMA Band2 GSM1900 RX 3G Network not working Solution 
Samsung Galaxy  Not 2 GT-N7100 WCDMA Band2 GSM1900 RX 3G Network not Starting Solution
Samsung Galaxy  Not 2 GT-N7100 WCDMA Band2 GSM1900 RX 3G Network Not Searching Solution

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