Friday, August 21, 2015

Samsung galaxy S4 I9500 WCDMA BAND2 TX 3G Network Not Working Solution

Samsung galaxy S4 I9500 WCDMA BAND2 TX 3G Network Not Working Solution Schematic,Circuit,Diagram


Samsung galaxy S4 I9500 WCDMA BAND2 TX 3G Network Not Working Solution Step By Step

Step 1

F100 PIN 4 :
About 22dBm ?

CHECK soldered
- RFS100, L111, C136

Step 2

Check F100 PIN 6
About 22dBm

Resolder or change
F100

Step 3

Check the Voltage at
C166 = VBATT ?

Resolder or change
C166, L119

Step 4

Check component
soldering status OK at
F101

NO Resolder or change

F101

Step 5

Check F101 PIN 5
About 22dBm ?

Resolder or change

F101

Step 6

Resolder or change
L113

Check U102 PIN 10
About 22dBm ?

Step 7

Resolder or change
U102

Check U102 PIN 24
About 0dBm?

Step 8

NO
Check the freq. at
OSC100 PIN 4 : 26MHz ?

Change or resolder

OSC100

Step 9

Resolder or change
U103

Check component
soldering status ok at

U103

Step 10

Band2 Transmitter is O.K? Resolder or change

UCP300

Step 11

END





Unofficial Support Site For This Phone By Welcome Zone Haldwani
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Micro Box NEW V 3.0.0.9 SAMSUNG and ALCATEL Setup Download

Micro Box A.I.O NEW (All In One) V 3.0.0.9 - SAMSUNG and ALCATEL SMALL UPDATE:




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*Require rooted phone



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Thursday, August 20, 2015

Samsung galaxy S4 I9500 WCDMA BAND1 TX 3G Network Not Working Solution

Samsung galaxy S4 I9500  WCDMA BAND1 TX 3G Network Not Working Solution Schematic,Circuit Diagram


Samsung galaxy S4 I9500  WCDMA BAND1 TX 3G Network Not Working Solution Step By Step

Step 1

F100 PIN 4 :
About 22dBm ?

CHECK soldered
- RFS100, L111, C136

Step 2

Check F100 PIN 6
About 22 dBm
NO

Resolder or change
F100

Step 3

Check the Voltage at
C166 = VBATT ?

Resolder or change
C166, L119

Step 4

Check component
soldering status OK at
F101

Resolder or change
F101

Step 5

Check F101 PIN 7
About 22 dBm ?

Resolder or change
F101

Step 6

Resolder or change
C114, C140

Check U102 PIN 13
About 22dBm ?

Step 7

Resolder or change
U102 

Check U102 PIN 24
About 0dBm?

Step 8


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

Change or resolder
OSC100

Step 9

Resolder or change
U103

Check component
soldering status ok at
U103

Step 10

Band1 Transmitter is O.K? Resolder or change

UCP300

Step 11

END

Unofficial Support Site For This Phone By Welcome Zone Haldwani
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Samsung Galaxy S4 I9500  WCDMA BAND1 TX 3G Network Not Working Solution 
Samsung Galaxy S4 I9500  WCDMA BAND1 TX 3G Network Not Responding Solution
Samsung Galaxy S4 I9500  WCDMA BAND1 TX 3G Network Not Reachable Solution

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Samsung galaxy Grand i9082 GSM850/GSM900 TX 2G Network not working Solution

Samsung galaxy Grand i9082  GSM850/GSM900 TX 2G Network not working Solution Schematic , Diagram, Circuit





Samsung galaxy Grand i9082  GSM850/GSM900 TX 2G Network not working Solution Step by Step


Step 1


U101 PIN13 : About
30dBm ?

CHECK soldered
RFS100, C152, C153, L100,
L101, L144, ANT100

Step 2


Check the Voltage at
C100 = VBAT_RF ?

Resolder or change
U101, C100

Step 3


Check L146
: About 0dBm ?

Resolder or change
L146

Step4


Check the voltage at
{C139,C138 =
VOUT_CHARGER ?}
& {L402
= VOUT_CHARGER?}
& {C136, C137,C453 = 2.7V ?}
& {C142, C143,C453 = 2.7V ?}

Resolder or change
U104

Step 5


Check the freq. at
OSC100
PIN1,3 : 26MHz ?

Change or resolder
OSC100

Step 6


GSM850/900 Transmitter is O.K?

Resolder or change
UCP300








Unofficial Support Site By welcome Zone Haldwani 

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Samsung Galaxy Grand i9082   GSM850/GSM900 TX 2G Network not available Solution

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Samsung galaxy S4 I9500 DCS/PCS TX 3G Network Not Working Solution

Samsung galaxy S4 I9500 DCS/PCS TX 3G Network Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S4 I9500 DCS/PCS TX 3G Network Not Working Solution Step By Step

Step 1
F100 PIN 4 :

About 30dBm ?

CHECK soldered

- RFS100, L111, C136

Step 2

Check F100 PIN 6

About 30dBm

Resolder or change

F100

Step 3

Check the Voltage at

C166 = VBATT ?

Resolder or change

C166, L119

Step 4

Check component
soldering status OK at

F101

Resolder or change
F101

Step 5
Check F101 PIN 10
About 30dBm ?

Resolder or change

F101

Step 6

Check U102 PIN 9
About 30dBm ?

Resolder or change
C154, L118

Step 7

Check U102 PIN 24
About 10dBm?

Resolder or change
U102

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

DCS/PCS Transmitter is O.K?

Resolder or change
U300

Step 11

END

Unofficial Support Site For This Phone By Welcome Zone Haldwani
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Samsung Galaxy S4 I9500 DCS/PCS TX 3G Network Not Operate Solution 
Samsung Galaxy S4 I9500 DCS/PCS TX 3G Network Not Connect Solution
Samsung Galaxy S4 I9500 DCS/PCS TX 3G Network  Not Control Solution

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Samsung galaxy S4 I9500 GSM850/GSM900 TX Network Not Working Solution

Samsung galaxy S4 I9500  GSM850/GSM900 TX 3G Network Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S4 I9500  GSM850/GSM900 TX 3G Network Not Working Solution Step By Step

Step 1
F100 PIN 4 :
About 30dBm ?

CHECK soldered
- RFS100, L111, C136

Step 2

Check F100 PIN 6
About 30dBm

Resolder or change
F100

Step3

Check the Voltage at
C166 = VBATT ?

Resolder or change
C166, L119

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 U102 PIN 4
About 30dBm ?

Resolder or change
L117, C153

Step 7

Check U102 PIN 26
About 10dBm?

Resolder or change
U102

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

Step 11

END


Unofficial Support Site For This Phone By Welcome Zone Haldwani
Search Tags
Samsung Galaxy S4 I9500  GSM850/GSM900 TX Network Not Working Solution 
Samsung Galaxy S4 I9500  GSM850/GSM900 TX Network Not Responding Solution
Samsung Galaxy S4 I9500  GSM850/GSM900 TX Service Solution

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Samsung Usb Drivers
Samsung Android Usb Driver Download

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Samsung galaxy Grand i9082 WCDMA Band8 / GSM 900 RX Network not working Solution

Samsung galaxy Grand i9082 WCDMA Band8 / GSM900 RX Network not working Solution Schematic, Diagram,Circuit




Samsung galaxy Grand i9082 WCDMA Band8 / GSM900 RX Network not working Solution Step by Step  


Step 1


NORMAL CONDITION
catch the channel?

Step 2


Check L101 ≤ -65dBm ?

CHECK soldered
RFS100, L101, L144, C152, C153

Step 3


Check the Voltage at
C100 = VBAT_RF ?

Resolder or change
U101, C100

Step 4


Check L105, L106
≥ -65dBm ?

Resolder or change
L105, L106

Step 5


Check component
soldering status OK at
DUF100

Resolder or change
DUF100

Step 6


Check DUF100 PIN 1, 8
≥ -65dBm

Resolder or change
DUF100

Step 7


Check the voltage at
{C139,C138 =
VOUT_CHARGER ?}
& {L402
= VOUT_CHARGER?}
& {C136, C137,C453 = 2.7V ?}
& {C142, C143,C453 = 2.7V ?}

Resolder or change
U104

Step 8


Check the freq. at
OSC100
PIN1,3 : 26MHz ?

Change or resolder
OSC100

Step 9


WCDMA band8/GSM900
Receiver is O.K?

Resolder or change
UCP300

END


samsung i9082  WCDMA Band8 / GSM900 RX Solution


Unofficial Support Site By welcome Zone Haldwani 

Search Tags
Samsung Galaxy Grand i9082  WCDMA Band8 / GSM900 RX Network not working solution 
Samsung Galaxy Grand i9082  WCDMA Band8 / GSM900 RXNetwork not reacheble Solution
Samsung Galaxy Grand i9082  WCDMA Band8 / GSM900 RX Network Error Solution

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