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

Step 2

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

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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 Responding Solution

Samsung Galaxy S2 GT-I9100 WCDMA Band8 GSM900 RX network Error Solution

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Samsung GT-C3322 Metro Duos GSM900 Receiver 2G Network not Working Solution

 Samsung GT-C3322 Metro Duos GSM900 Receiver 2G Network not Working Solution Schematic , Diagram , Circuit

 Samsung GT-C3322 Metro Duos GSM900 Receiver 2G Network not Working Solution Step by Step 

Step 1

Normal condition

Catch the channel?

Check Ant and Resoleder

L100,C124,C117,L103,C120

Step 2

RFS100

Pin 2

>= -60dBm

Resolder RFS100,L104,L101

Step 3

PAM100

Pin 15

>= -70dBm

Check PAM100

Step 4

PAM100

Pin 17

>= -70dBm

Check F102,L112,C142

Step 5

F102

Pin 8,9

>= -75dBm

Check C144,L113,C145

(crack,open,etc)

Step 6

Check UCP200

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Samsung GT-C3322 Metro Duos GSM900  Receiver Network not working Solution 

Samsung GT-C3322 Metro Duos GSM900 not connect Solution

Samsung GT-C3322 Metro Duos GSM900 Receiver Network not Reachble Solution

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Samsung GT-C3322 Metro Duos GSM850 Transmitter 2G Network not Working Solution

 Samsung GT-C3322 Metro Duos GSM850 Transmitter 2G Network not Working Solution Schematic , Diagram , Circuit

 Samsung GT-C3322 Metro Duos GSM850 Transmitter 2G Network not Working Solution Step by Step 

Step1

RFS100 PIN 2

>= 20dBm

Resolder L110,C117,C124,L103,C120

Step 2

PAM100 Pin15

>= 20dBm

Resolder RFS100,L101,L104

Step 3

PAM100 Pin4

>= 20 dBm

Resolder or Change PAM100

Step 4

Check UCP200,L114

(crack,open,etc)

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Samsung GT-C3322 Metro Duos GSM 850 Transmitter Network not working Solution 

Samsung GT-C3322 Metro Duos GSM 850 Transmitter Neetwork Error Solution

Samsung GT-C3322 Metro Duos GSM 850 Transmitter Network not Reachble Solution

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Miracle Box Grand Update v 2.17 Setup Download

MIRACLE BOX

Truly for China Mobile

Released 2.17

GRAND UPDATE

[Miracle key Edition]

Unofficial support site By Welcome Zone Haldwani

What New in Update:

✔ 1.MTK Add MT6753/6735 EMMC Read,Write Support.

✔ 2.MTK Add MT6753/6735 EMMC Format,ROOT.

✔ 3.MTK Add MT6753/6735 EMMC Reset code,Read Pattern.

✔ 4.MTK Add Nokia RM-1110/1 Read write support (12th boot).

✔ 5.MTK Add Nokia RM-1110/1 Format,Read Unlock.

✔ 6.MTK Improve 6582/6583/6589 Support (New Modle).

✔ 7.MTK Add Fix DL Mode and Fix Unknown Baseband Repair.

✔ 8.MTK Improve Reset Code,Read Pattern (EMMC no R/A).

✔ 9.MTK USB ENABLE DEBUG MTK 6753/6735/6582/6583/6589.

✔ 10..SPD Add SC7715 Nand Write support.

✔ 11.SPD Add SC7715 Format,IMEI NV Read and Write Support.

✔ 12.SPD Improve SC7730/7731 Read Pattern Code.

✔ 13. ADB Different Version Added \Miracle Box\Tools\ADB

✔ 14. Auto Driver Installation Added.

✔ 15.GUI and BUG Fix.

{Info About Miracle Key Dongle}

NO NEED CREDIT | NO NEED ACTIVATION | NO NEED INTERNET ALWAYS 

WE ALWAYS CARE OUR USER

4 YEAR CONTINUES FREE UPDATE

(:::::::::::::::::[FEEL THE POWER OF]:::::::::::::::::)

(:::::::::::::::::[MIRACLE TEAM]:::::::::::::::::)

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