Samsung gt s7562 Samsung Galaxy S Duos S7562 Volume Key and Other Sub key not working solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Volume Key and Other Sub key not working solution Schematic , Diagram , Circuit

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Samsung gt s7562 S Duos  Volume Key and Other Sub key not working solution Step by Step 

Step 1 

Press Volume Key
and Other Sub Key

Step 2

Volume Key NG?

Resolder or Replace TACT700 , TACT701

Step 3

home Key
NG?

Resolder or Replace R722, L701

Resolder or Replace UCP300

Replace PBA

Step 4

Menu&Back Key
NG?

GO TO 8-3-3.TSP

Step 5 

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Samsung Galaxy GT S  Duos S7562 Volume key and other Sub key Solution
Samsung Galaxy GT S Duos S7562 Volume key Not Working Solution
Samsung Galaxy GT S Duos S7562 Lock key not working solution

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Samsung gt s7562 Samsung Galaxy S Duos Stereo Headset Not Working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Sterio Headest Not Working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Sterio Headest Not Working Solution Step by Step

Step1

Hands-free stereo
headset

Step 2

Button NG?

Resolder or Replace
U501

Step 3

MIC NG?

Check
L502

Check U501

Reconnect HDC501

Step 4

SPK NG?

Signal on
in L501, L500

Resolder or Replace
L501, L500

Resolder or Replace
PM400

Step 5

The End

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Samsung Galaxy S Duos S7562 Sterio Headest Solution
Samsung Galaxy S Duos S7562 Sterio Headest Not working Solution
Samsung Galaxy S Duos S7562 No Audio Headest Solution

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Samsung Android Usb Driver Download

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samsung s5222 charging jumper solutions ways

Samsung gt s5222  Charging Solution

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Samsung s5222 charging Solution
Samsung s5222 charging Not Working Solution
Samsung s5222 Bad charging solution

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Samsung Android Usb Driver Download

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Samsung GT-S7562 Galaxy S Duos Dead Boot repair Unbrick With RIFF Box JTAG

How To Dead Boot repair With RIFF Box

Repair bricked Samsung S7562 is easy with the RIFF Box.
Note, one simple way to connect over JTAG – connect USB cable to PC and insert battery. In this case phone is automatically powered on, so no need to press any power-on buttons on the phone keypad.
To resurrect Samsung S7562:
 Solder JTAG cable to Samsung S7562 JTAG pads;

 Insert USB Data cable into board and PC;
 Make sure Samsung S7562 is selected in the list of models;
 Click Resurrect button;
 Wait till software signals a successful operation completion;
 Disconnect power supply, de-solder JTAG wires;
Now phone is in bootable condition, that is, even if it does not start up normally, you can flash it using known flashing methods.
To enter download mode:
 Disconnect PC cable;
 Insert battery;
 Hold ‘Volume Down’ and ‘Home’ keys and press Power-On.



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Samsung Galaxy S Duos S7562 Dead Solution
Samsung Galaxy S Duos S7562 Dead Boot Solution
Samsung Galaxy S Duos S7562 Dead Boot Riff box solution

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Samsung gt s7562 Samsung Galaxy S Duos S7562 LCD Not Working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 LCD Not Working Solution

Samsung gt s7562 LCD Not Working Solution Step By Step

Step 1

Power Switch On

LCD Display On 

LCD FPCB
connector is co
rrectly connecti
ned?

correctly connect

Step 2 

C607

LED_P_26V=26V?

CHECK
LCD DATALINE
(LCD_SDA,SCL)

Replace U602 & Check

D600,L604,L603,L605

Replace or Resolder
& D600,L604,L603,L605

Resolder or replace UCP300

Replace LCD

Replace PBA

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Samsung Galaxy S Duos S7562 Lcd Solution
Samsung Galaxy S Duos S7562 No Lcd Solution
Samsung Galaxy S Duos S7562 Blank Lcd solution

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Samsung gt s7562 Samsung Galaxy S Duos S7562 Dead Solutions

Samsung gt s7562 Samsung Galaxy S Duos S7562 Dead Solutions

Samsung gt s7562 Dead Solutions Step By Step

Step 1
Connect the jig box.
Check the current consum
ption
>= 100mA?

Rom Re Download

Step 2
Check the battery 
voltage

>= 3.45?

Change the battery

Step 3
Check the GPIO_2 
5 of UCP300 PS_

HOLD pin is 2.6V?

Check the PMIC

related to PS_HOLD

Step 4
Check the clock at

OSC400 = 32KHz ?

Resolder OSC400

Step 5
C438(VREG_MSMC1)=1.1V?
C437(VREG_MSMC2)=1.1V?
C436(VREG_MSME)=1.8V?
R402(VREG_MSMP)=1.8V?

C454(VREG_MSMA)=2.6V?

Check the voltage and Resolder

PM400

Step 6
check

the initial operation

Resolder or Replace UCP300

Step 7
END

Change the main PBA

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Samsung Galaxy S Duos S7562 Not Power On Solution
Samsung Galaxy S Duos S7562 Duos shutdown solution

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Samsung gt s7262 Star Pro Mic Not Working Solution

Samsung gt s7262 Star Pro Mic Not Working Solution

Samsung gt s7262 Star Pro Mic Not Working Solution

Step 1
Check microphone function
in voice call receiver mode
or in Voice Recording mode
IF OK

Step 2 
Check the main MIC 500 is
placed for any damage

Resolder or replace the main MIC 500

Step 3
Check the voltage at
L511 = 2.8V

Resolder or replace UCP300

Step 4 
Check component soldering
statuses of C539, C540, L512

Resolder or replace C539, C540 , L512

S7262 Mic Jumper

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Samsung Galaxy Star Pro Duos S7262 Mic Solution
Samsung Galaxy Star Pro Duos S7262 Mic Not Working Solution
Samsung Galaxy Star Pro Duos S7262 No Outgoing Audio solution

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Samsung gt s7262 Star Pro No Charging Solution And Charging Jumper

Samsung gt s7262 Star Pro No Charging Solutions

Samsung S7262 Charging Solution

Step 1
Clean the Usb Connector

Step 2
TA / USB is normal?

Change TA or USB

Step 3
Check Volt VBUS_5.0V_IF(C414) = 5.0V ?

Replace C414

Step 4 
Resolder or Replace U401

If tracks are missing to Apply this jumpers

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Samsung Galaxy Star Pro Duos S7262 No Charging Solution
Samsung Galaxy Star Pro Duos S7262 Not Charging Solution
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Samsung gt s7262 Star Pro Insert Sim Solution

Samsung gt s7262 Star Pro Insert Sim Solution

Insert SIM card Step by Step

Step 1

Check SIM500/SIM501 to

soldering well

Resolder or replace SIM500/SIM501

Step 2

Check the SIM Voltage.

(C513,C517) >= 3.0?

Change to the new SIM card.

If it doesn't still work SIM card after changing

the SIM card, Check the UCP300 (Crack etc)

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Samsung Galaxy Star Pro Duos S7262 Insert Sim Solution
Samsung Galaxy Star Pro Duos S7262 No Sim Solution
Samsung Galaxy Star Pro Duos S7262 No Sim Emergency Call Only solution

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Samsung Galaxy Star Pro S7262 No Network Solutions

Samsung Galaxy Star Pro S7262 No Network Solutions , No Service Solution

No service Solution Step by Step

Step 1 

Check menu setting

Menu → applications → setting → wireless and network →

mobile networks → network mode → setting is auto mode ?

Step 2

Check the Main Antenna

not-exist or damaged

Replace Main Antenna

Step 3

Check the RFS100, L100, C103,

C102,C100,C101,L102,L101,C104 is

well soldered

Re-solder RFS100, L100, C103,

C102,C100,C101,L102,L101,C104 correspondingly

Step 4

Check C105,C106,C107>=3.0 V?

Replace the U100

Step 5 

Change the PBA

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Samsung Galaxy Star Pro Duos S7262 Network Solution
Samsung Galaxy Star Pro Duos S7262 No Service Solution
Samsung Galaxy Star Pro Duos S7262 Emergency Call Only solution

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Samsung gt s7262 Samsung Galaxy Star Pro Duos S7262 Dead Solutions

Samsung gt s7262 Samsung Galaxy Star Pro Duos S7262 Dead Solutions

Cell phone can`t power on. Solutions

Step 1
Check the Battery Voltage.
Is it more than 3.5V?

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

Step 2 
Power-on the phone and check
the power-on current ≥ 100mA

Change the FRONT LCD Assy.
or re-download binary

Step 3
Check the ONKEY
(TAC401)

Change the TAC401.
And re-try to the power-on operation

Step 4 
Check the UCP300 output
voltage. (C338 ≒ 1.1V)

If the output voltage is not satisfied with normal
condition, Change the UCP300
※ Each voltage level has ±10% margin

Step 5 
Change PBA

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Samsung Galaxy Star Pro Duos S7262 Dead Solution
Samsung Galaxy Star Pro Duos S7262 Not Power On Solution
Samsung Galaxy Star Pro Duos S7262 Duos shutdown solution

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