Samsung galaxy Grand i9082 WIFI Problem solution

Samsung galaxy Grand i9082 WIFI Problem solution Schematic ,Diagram , Circuit 

Samsung galaxy Grand i9082 WIFI Problem solution  Step by Step

Step 1

BT/WiFi is not working

Step 2

Check BT or WiFi function

ON

Enable BT or WiFi Function

Step 3

Check the Voltage on C229 =

1.8V

Check the U400(crack, open, damaged, etc.)

Step 4

Check 26MHz Clock at C251

Check the OSC100(crack, open, etc.)

Step 5

Check the Voltage on L210 =

1.5V

Resolder or change the L210

Step 6

Check the Status of

L218, C210, C211, ANT200

Resolder or Replace

L218, C210, C211, ANT200

Step 7

Resolder or Replace U204

END

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Samsung galaxy Grand i9082 Ear Speaker, Receiver problem Solution

Samsung galaxy Grand i9082 Ear Speaker Receiver problem Solution Schematic , Diagram , Circuit

Samsung galaxy Grand i9082 Receiver problem Solution step by step

Step 1 

Check receiver function

in voice call receiver mode.

Step 2

Check the connection of

HDC501

Reconnect HDC501

Step 3

Check RCV module

where RCV's placed

for any damage (Tear in

FPC, etc)

Replace the RCV module

Step 4

Check the signals on

L508, L509, VR503, VR504,

C504, C505

Resolder or replace UCP300

END

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Samsung galaxy S4 I9500 insert Sim Card Solution And Jumper

Samsung galaxy S4 I9500  insert Sim Card Solution Solution Schematic , Diagram , Circuit

Samsung galaxy S4 I9500  insert Sim Card Solution Solution Step By Step 

Step 1

Insert SIM card

Step 2

Is SIM/SD assy well

connected to main board?

Reassemble SIM/SD assy and still SIM

does not work, replace SIM/SD assy

Step 3

Check the SIM Voltage.

(C6 of SIM FPCB) >= 1.8

or 3.0?

Change to the new SIM card.

If it doesn`t still work SIM card after changing

the SIM card, Check the U300 (Crack etc)

Step 4

END

Samsung gaLaxy S4 I9500 Insert Sim Card

Samsung galaxy S4 I9500 insert Sim Card Jumper

Third Party Solution

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Samsung galaxy Grand i9082 Ringer Speaker Part not working solution

Samsung galaxy Grand i9082 Speaker Part not working solution Schematic , Diagram , Circuit

Samsung galaxy Grand i9082 Ringer not working Step by step 

Step 1

Check speaker function.

Play MP3 with maximum volume level.

Step 2

Check the connection of

HDC500

Reconnect HDC50

Step 3

Check the signals on

ZD501, ZD502

Resolder or replace U400

Step 4

Replace the speaker

module

Step 5

END

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Samsung galaxy S4 I9500 Initial Not Working Solution

Samsung  galaxy S4 I9500 Initial Not Working Solution Schematic , Diagram , Circuit

Samsung  galaxy S4 I9500 Initial Not Working Solution Step By Step

Step 1

Initial Failure Dead Solution

Step 2

Re-download latest SW on the

mobile phone. (FLASH THE PHONE)

Step 3

Re Check "8-3-1 Power on"

Trouble shooting process

Check the OSC5000 (Crack, open etc.)

Check the U600 ( Crack etc)

Step 4

Change UME300

Step 5

Change PBA

Step 6

END

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Samsung galaxy Grand i9082 Microphone ,main mic solution Or Jumper

Samsung galaxy Grand i9082 Microphone ,main mic solution Schematic , Diagram , Circuit 

Samsung galaxy Grand i9082 Microphone ,main mic solution Step by step

Step 1

Check main microphone function

in voice call receiver mode

or in Voice Recording mode

Step 2

Check component soldering

statuses of C369, R512

Resolder or replace C369, R512

Step 3

Check the voltage at

C509 = 2.1V

Resolder or replace UCP300

Step 4

Check component soldering

statuses of MIC500

Resolder or replace C369, R512

Resolder or replace MIC50

Step 5

END

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How To Connect Universal Mic Jumper

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Samsung galaxy S4 I9500 Power Not On Solution

Samsung  galaxy S4 I9500 Power Not On Solution Schematic , Diagram , Circuit

Samsung  galaxy S4 I9500 Power Not On Solution Step By Step

Step 1

Mobile phone does not power on.

Step 2

Check the Battery Voltage.
Is it more than 3
.8V?

Charging the battery by TA.
If its voltage level is extremely low(under 3.0V),

Change the battery

Step 3

Power-on the phone and
check the power-on sound
or motor Vibration.

Sound or Vibration is ok?

Change the FRONT-LCD ASSY

Step 4

Check the TAC1000

(soldering crack, open, etc)

Change the TAC1000(Power-key switch)
And retry to the power-on operation.

Step 5

Check the U600 output voltage

(C665 > 1V,C664 > 1V)

If the output voltage is not satisfied with normal
condition, Change the U600.

※ Each voltage level has ±10% margin.

Step 6

Check the Clock OSC5000

Is that frequency 24Mhz?

Change the OSC5000.
Test condition (Oscilloscope setting)

20.0us.div (time division)

Step 7

check the initial operation

Step 8

END

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