Thursday, September 3, 2015

Samsung galaxy S2 GT-I9100 DCS/PCS TX Network Not Working Solution

Samsung galaxy S2 GT-I9100 DCS/PCS TX Network Not Working Solution Schematic,Diagram,Circuit


Samsung galaxy S2 GT-I9100 DCS/PCS TX Network Not Working Solution Step By Step 
Step 1
U101 PIN11 : About

27dBm ?

CHECK soldered
- RFS100,L107,C107,L108,

C106,C104,C105,ANT100

Step 2

Check the Voltage at

C102 = VBATT ?

Resolder or change

U101, C102

Step 3

Check C111, C118 :

About 27dBm ?

Resolder or change

C111, ,C118

Step 4

Check the Voltage at

R741,C117=VOUT_CHARGER?

Resolder or change

PAM100, R741, C117

Step 5

Check C124, L111 :

About -4dBm ?

Resolder or change

C124, L111

Step 6

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 7

Check the freq. at C123

: 26MHz ?

Change or resolder

OSC100

Step 8

DCS/PCS Transmitter is O.K?

Resolder or change

UCP300

Step 9

END

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Samsung Galaxy S2 GT-I9100 DCS/PCS TX Network Not working Solution 
Samsung Galaxy S2 GT-I9100 DCS/PCS TX Network Not Responding Solution
Samsung Galaxy S2 GT-I9100 DCS/PCS TX Network Not Error Solution

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Samsung GT-C3322 Metro Duos GSM 900 Transmitter Network not Working Solution

 Samsung GT-C3322 Metro Duos GSM 900 Transmitter Network not Working Solution Schematic, Diagram , Circuit






 Samsung GT-C3322 Metro Duos GSM 900 Transmitter Network not Working Solution Step by Step 

Step 1

RFS Pin2
>= 20dBm

Resolder L110,C117,C124,L103,C120

Step 2

PAM100 Pin17
>= 20dBm

Resolder RFS100,L101,L104

Step 3

PAM100 Pin27
>= 20 dBm

Resolder or Change PAM100

Step 4

Check UCP200,L114
(crack,open,etc)



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Samsung GT-C3322 Metro Duos GSM 900 Transmitter Network not working Solution 
Samsung GT-C3322 Metro Duos GSM 900 Transmitter not connect Solution
Samsung GT-C3322 Metro Duos GSM 900 Transmitter Network not Reachble Solution

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Samsung GT-C3322 Metro Duos DCS Transmitter Network not Working Solution

 Samsung GT-C3322 Metro Duos DCS Transmitter Network not Working Solution Schematic , Diagram , Circuit






 Samsung GT-C3322 Metro Duos DCS Transmitter Network not Working Solution Step by Step 


Step 1 

RFS Pin2
>= 20dBm

Check Ant and Resoleder
L100,C124,C117,L103,C120
PAM100 Pin15
>= 20dBm

Resolder RFS100,L101,L104

Step 3

PAM100 Pin2
>= 20 dBm

Resolder or Change PAM100

Step 4

Check UCP200,C149
(crack,open,etc)





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Samsung GT-C3322 Metro Duos  DCS Transmitter Network not working Solution 
Samsung GT-C3322 Metro Duos  DCS Transmitter not connect Solution
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Samsung galaxy S2 GT-I9100 GSM850 GSM900 TX 2G Network Not Working Solution

Samsung galaxy S2 GT-I9100 GSM850/GSM900 TX 2G Network Not Working Solution Schematic,Circuit Diagram


Samsung galaxy S2 GT-I9100 GSM850/GSM900 TX 2G Network Not Working Solution Step by Step 
Step 1
U101 PIN11 : About
30dBm ?

CHECK soldered
- RFS100,L107,C107,L108,
C106,C104,C105,ANT100

Step 2

Check the Voltage at
C102 = VBATT ?

Resolder or change
U101, C102

Step 3

Check C120, L110, L113
: About 30dBm ?

Resolder or change
C120, L110, L113

Step 4

Check the Voltage at
R741,C117=VOUT_CHARGER?

Resolder or change
PAM100, R741, C117Step 5Check C125, L112 :
About 0dBm ?
Resolder or change
C125, L112

Step 6

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 7

Check the freq. at C123
: 26MHz ?

Change or resolder
OSC100

Step 8

GSM850/900 Transmitter is O.K?

Resolder or change
UCP300

Step 9

END

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Samsung Galaxy S2 GT-I9100 GSM850/GSM900 TX 2G Network Not working Solution 
Samsung Galaxy S2 GT-I9100 GSM850/GSM900 TX 2G Network Not Responding Solution
Samsung Galaxy S2 GT-I9100 GSM850/GSM900 TX 2G Network Error Solution

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Samsung GT-C3322 Metro Duos DCS Receiver Network not Working Solution

 Samsung GT-C3322 Metro Duos DCS Receiver Network not Working Solution  Schematic , Diagram , Circuit






 Samsung GT-C3322 Metro Duos DCS Receiver Network not Working Solution Step by Step 


Step 1

Normal condition
Catch the channel?

Check Ant and Resoleder
L100,C124,C117,L103,C120
RFS100
Pin 2
>= -60dBm

Resolder RFS100,L104,L101

Step 3

PAM100
Pin 15
>= -70dBm

Check PAM100

Step 4

PAM
Pin 18
>= -70dBm

Check F101,C135,L109
(crack,open,etc)

Step 5

F101
Pin 6,7
>= -75dBm

Check C133,L108,C134
(crack,open,etc)

Step 6

Check UCP200



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Samsung GT-C3322 Metro Duos DCS  Receiver Network not working Solution 
Samsung GT-C3322 Metro Duos DCS not connect Solution
Samsung GT-C3322 Metro Duos DCS Receiver Network not Reachble Solution

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Samsung galaxy S2 GT-I9100 WCDMA Band5 GSM 850 RX Network Not Working Solution

Samsung galaxy S2 GT-I9100 WCDMA Band5 GSM 850 RX Not Working Solution Schemtic,Circuit,Diagram

Samsung galaxy S2 GT-I9100 WCDMA Band5 GSM 850 RX 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 C100, L100

≥ -65dBm ?

Resolder or change

C100, L100

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
{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

WCDMA band5/GSM850

Receiver is O.K?

Resolder or change

UCP300

Step 10

END
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Samsung Galaxy S2 GT-I9100 WCDMA Band5 GSM 850 RX Network Not working Solution 
Samsung Galaxy S2 GT-I9100 WCDMA Band5 GSM 850 RX Network Not Responding Solution
Samsung Galaxy S2 GT-I9100 WCDMA Band5 GSM 850 RX Network Not Properly Work Solution

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Samsung galaxy S2 GT-I9100 WCDMA Band8 GSM900 RX network Not Working Solution

Samsung galaxy S2 GT-I9100 WCDMA Band8 GSM900 RX network Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S2 GT-I9100 WCDMA Band8 GSM900 RX 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 L104, L105

≥ -65dBm ?

Resolder or change

L104, L105

Step 5

Check component
soldering status OK at

F100

Resolder or change

F100

Step 6

Check F100 PIN 22, 23

≥ -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

WCDMA band8/GSM900

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 WCDMA Band8 GSM900 RX  network Not working Solution 
Samsung Galaxy S2 GT-I9100 WCDMA Band8 GSM900 RX  network Not Responding Solution
Samsung Galaxy S2 GT-I9100 WCDMA Band8 GSM900 RX network Error Solution

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Samsung Android Usb Driver Download

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