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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 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
Samsung Galaxy Star Pro Duos S7262 Bad Charging Solution

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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 Galaxy Star Pro S7262 No Network Solutions , No Service Solution
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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 Android Usb Driver Download

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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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Samsung galaxy Grand i9082 Sim Part , Insert SIM card Solution  Schematic , Diagram , Circuit 
Check the Pin Soldering
of SIM300, SIM301

Resoldering and recheck

Step 2

Check the SIM Voltage.
(C380, C387) >=
1.8 or 3.0?

Resoldering and recheck
Change to the new SIM card.
If it doesn`t still work SIM card after changeing
the SIM card, Check the UCP300 (Crack etc

END



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Samsung Galaxy Grand i9082 insert sim card solution 
Samsung Galaxy Grand i9082 Sim card not Found Solution
Samsung Galaxy Grand i9082 Sim card not working Solution

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