Samsung galaxy Grand i9082 WCDMA BAND2 TX 3G Network not working Solution

Samsung galaxy Grand i9082 WCDMA BAND2 TX 3G Network not working Solution Schematic , Diagram, Circuit

Samsung galaxy Grand i9082 WCDMA BAND2 TX 3G Network not working Solution Step By Step 

Step 1

Check U101 PIN13 :

About 22 dBm ?

CHECK soldered

RFS100, C152, C153, L100,

L101, L144, ANT100

Step 2

Check the Voltage at

C100 = VBAT_RF ?

Resolder or change

U101, C10

Step 3

Check L116 :

About 22dBm ?

Resolder or change

L116

Step 4

Check component

soldering status OK at

DUF102

Resolder or change

DUF102

Step 5

Check L120, L121, C123 :

About 22dBm ?

Resolder or change

L120, L121, C123

Step 6 

Check the Voltage at

C120=VOUT_CHARGER?

Resolder or change

U102, C120

Step 7

Check C150

About 0dBm ?

Resolder or change

C150

Step 8

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 9

Check the freq. at

OSC100

PIN1,3 : 26MHz ?

Change or resolder

OSC100

Step 10

WCDMA band2 Transmitter is O.K?

Resolder or change

UCP300

END

Unofficial Support Site By welcome Zone Haldwani 

HOME

Search Tags

Samsung Galaxy Grand i9082 WCDMA BAND2 TX 3G Network not working solution 

Samsung Galaxy Grand i9082 WCDMA BAND2 TX 3GNetwork  not reacheble Solution

Samsung Galaxy Grand i9082 WCDMA BAND2 TX 3GNetwork not available 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