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Samsung Galaxy Note 3 SM-N900 GSM850/GSM900 TX 2G Network not Working Solution

Samsung Galaxy Note 3 SM-N900 GSM850/GSM900 TX 2G Network not Working Solution Schematic , Diagram , Circuit

Samsung Galaxy Note 3 SM-N900 GSM850/GSM900 TX 2G Network not Working Solution Step by Step 

Step 1

F100 PIN 4 :
About 30dBm ?
CHECK soldered
– CN100, L100, C104

Step 2

Check F100 PIN 6
About 30dBm
Resolder or change
F100

Step 3

Check the Voltage at
C104 = VBATT ?
Resolder or chan
C104, L110

Step 4

Check component
soldering status OK at
F101
Resolder or change
F101

Step 5

Check F101 PIN 9
About 30dBm ?
Resolder or change
F101

Step 6

Check U101 PIN 4
About 30dBm ?
Resolder or change
L112, C139

Step7

Check U101 PIN 26
About 10dBm?
Resolder or change
U101

Step 8

Check the freq. at
OSC100 PIN 4 : 26MHz ?
Change or resolder
OSC100


Step 9

Check component
soldering status ok at
U103
Resolder or change
U103

Step 10

GSM850/900 Transmitter is O.K?
Resolder or change
U300
                                               Samsung Note 3 N900 GSM 850 GSM 900 TX Solution
Unofficial Support Site By welcome Zone Haldwani 

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