Samsung galaxy S2 GT-I9100 GSM1800 RX 2G NETWORK Not Working Solution

Samsung galaxy S2 GT-I9100 GSM1800 RX 2G NETWORK Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S2 GT-I9100 GSM1800 RX 2G NETWORK Not Working Solution Step By Step

Step 1

NORMAL CONDITION

catch the channel?

Step 2

Check C107 ≤ -65dBm ?

CHECK soldered

RFS100, L107,C107,L108

Step 3

Check the Voltage at

C102 = VBATT ?

Resolder or change

U101, C102

Step 4

Check C101, L101

≥ -65dBm ?

Resolder or change

C101, L101

Step 5

Check component
soldering status OK at

F100

Resolder or change

F100

Step 6

Check F100 PIN 18, 19

≥ -65dBm

Resolder or change

F100

Step 7

Check the voltage at
{C138 = VOUT_CHARGER ?}
& {C169, C170, C171
= VOUT_CHARGER?}
& {C137, C174 = 2.85V ?}
& {C134, C176 = 2.65V ?}
& {C136, C178 = 1.8V?}

& {C135, C175, C173 = 1.2V?}

Resolder or change

U104

Step 8

Check the freq. at C123

: 26MHz ?

Change or resolder

OSC100

Step 9

GSM1800 Receiver is O.K?

Resolder or change

UCP300

Step 10

END

Unofficial Support Site For This Phone By welcome Zone Haldwani 

HOME

Search Tags

Samsung Galaxy S2 GT-I9100 GSM1800 RX 2G NETWORK Not working Solution 

Samsung Galaxy S2 GT-I9100 GSM1800 RX 2G NETWORK Not Responding Solution

Samsung Galaxy S2 GT-I9100 GSM1800 RX 2G NETWORK Not Properly Work Solution

Android App For This Site

Download

Samsung Usb Drivers

Samsung Android Usb Driver Download

Facebook Page

Do You Want More Update Click Here And Like This Page