Samsung galaxy S2 GT-I9100 Microphone Part (Sub MIC) Not Working Solution

Samsung galaxy S2 GT-I9100 Microphone Part (Sub MIC) Not Working Solution Schematic,Circuit,Diagram

when your voice not reaching to other person then your mic is not working.Such as-

1.when our mic is not work to send our voice.

2.when our voice is not reach to other person.

3.when our voice is not going to another person.

4.occasionally our voice recording is not response.

5.During video recording our voice is not work.

6.when we calling other person then his voice is come but our voice is not going.

To get these problems solution please follow these steps-

Samsung galaxy S2 GT-I9100 Microphone Part (Sub MIC) Not Working Solution Step By Step

Step 1

Check Sub microphone function

in voice call loudSPK mode

or in camcording mode

Step 2

Check RCV-Earjack module

where Sub MIC is placed

for any damage (Tear in FPC,

etc)

Replace the RCV-Earjack module

Step 3

Check the voltage at

C658 = 2.8V

Resolder or replace U610

Step 4

Check component soldering

statuses of C627, C630

Resolder or replace C627, C630

Step 5

END

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Samsung Galaxy S2 GT-I9100 Microphone Part (Sub MIC)  not working Solution 

Samsung Galaxy S2 GT-I9100 Microphone Part  (Sub MIC)  Not Responding Solution

Samsung Galaxy S2 GT-I9100 Microphone Part (Sub MIC) voice not powerfull Solution

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Samsung galaxy S2 GT-I9100 Microphone Part (Main MIC) Not Working Solution

Samsung galaxy S2 GT-I9100 Microphone Part (Main MIC) Not Working Solution Schematic Circuit Diagram

                                

when your voice not reaching to other person then your mic is not working.Such as-

1.when our mic is not work to send our voice.

2.when our voice is not reach to other person.

3.when our voice is not going to another person.

4.occasionally our voice recording is not response.

5.During video recording our voice is not work.

6.when we calling other person then his voice is come but our voice is not going.

To get these problems solution please follow these steps-

Samsung galaxy S2 GT-I9100 Microphone Part (Main MIC) Not Working Solution Step By Step

Step 1

Check main microphone function

in voice call receiver mode

or in Voice Recording mode

Step 2

Check Sub-PCB module
where main MIC is placed
for any damage (Tear in FPC,

etc)

Change the Sub-PCB module

Step 3

Check the voltage at

C656 = 2.8V

Resolder or replace U609

Step 4

Check component soldering

statuses of C621, C622

Resolder or replace C621, C622

Step 5

END

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Samsung Galaxy S2 GT-I9100 Microphone Part (Main MIC)  not working Solution 

Samsung Galaxy S2 GT-I9100 Microphone Part (Main MIC)  Not Responding Solution

Samsung Galaxy S2 GT-I9100 Microphone Part (Main MIC) voice not powerfull Solution

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Samsung GT-C3322 Metro Duos Charging not Working Solution

 Samsung GT-C3322 Metro Duos Charging not Working Solution Schemati , Diagram , Circuit

when your phone is not charge from these reason-

1.Suddenly mobile turn of because his battery not charging

2.it is the big problum battery is dead

3.Mobile phone take not any charger

4.Mobile Phone always insurt the battery

5.But they can not power on the battery

6.Different charger is not work mobile phone

7.They are not store the battery in phone

8.Mobile phone is not working because battery place is damage

9.Charging pin is damage do not work charger

10.Mobile phone is not charge but suddenly mobile phone is switch off

 Samsung GT-C3322 Metro Duos Charging not Working Solution Step by Step 

Step 1

Display charging

animation

Download S/W binary

Step 2

Check

VBUS(C308)≥

4.5V in IF300 ?

Connect correctly

Step 3

Check the

Voltage in C309

≥4.8V

Replace U301

Step 4

Check the Travel Adaptor

(crack, damage, etc)

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Samsung GT-C3322 Metro Duos  Charging not working Solution 

Samsung GT-C3322 Metro Duos dead Charging  Solution

Samsung GT-C3322 Metro Duos Abnormal Charging Solution

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Samsung galaxy S2 GT-I9100 Charging Part Not Working Solution

Samsung galaxy S2 GT-I9100 Charging Part Not Working Solution Schematic,Circuit,Diagram

                                        

1.Suddenly mobile turn of because his battery not charging

2.it is the big problum battery is dead

3.Mobile phone take not any charger

4.Mobile Phone always insurt the battery

5.But they can not power on the battery

6.Different charger is not work mobile phone

7.They are not store the battery in phone

8.Mobile phone is not working because battery place is damage

9.Charging pin is damage do not work charger

10.Mobile phone is not charge but suddenly mobile phone is switch off

Samsung galaxy S2 GT-I9100 Charging Part Not Working Solution Step By Step

Step 1

TA / USB Insert

Step 2

Charging Sequence Start

Vin = 5V

Check D501 = 5V,

or may not connected TA / USB

Step 3

Check the Q500(3 pin - EN/SET)

EN/SET = 0V(LOW)

Resolder and Replace Q500

Step 4

Battery is Charging?

Resolder or Replace U504

Step 5

END

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Samsung Galaxy S2 GT-I9100 Charging Part Solution not working Solution 

Samsung Galaxy S2 GT-I9100 Charging Part Not Responding Solution

Samsung Galaxy S2 GT-I9100 Battery is dead Solution

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Samsung GT-C3322 Metro Duos Power On,Dead Solution

 Samsung GT-C3322 Metro Duos Power On,Dead Solution Schematic Diagram,Circuit

 Samsung GT-C3322 Metro Duos Power On,Dead Solution Step by  Step

"Power On" does not work

Step 1

Check the battery

voltage ≥ 3.45V

Change the battery

Step 2

Check the current

consumption ≥

100mA?

Flash the phone with latest software

Step 3

Check the Dome

Sheet (Crack,

open, etc)?

Change Dome Sheet

Step 4

Check the clock

at OSC200

=32KHz?

Resolder OSC200

Step 5

Voltage of C200≥

2.7V?

Voltage of L202≥

1.1V?

Check the related circuit

(C200, L202) & change UCP200

Step 6

Check

C241,TP_SYSRS

T ≥1.8V?

Change PBA

Check the initial operation

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Samsung GT-C3322 Metro Duos Power On,not working Solution 

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Samsung GT-C3322 Metro Duos Phone not On Solution

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Samsung galaxy S2 GT-I9100 Insert Sim Part Not Working Solution

Samsung galaxy S2 GT-I9100 Insert Sim Card Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S2 GT-I9100 Insert Sim Card Not Working Solution Step By Step

Step 1

Check the Pin Soldering

of SIM300

Resoldering and recheck

Step 2

Check the SIM Voltage.

(R312) >= 1.8 or 3.0?

Change to the new SIM card.
If it doesn`t still work SIM card after changeing

the SIM card, Check the UCP300 (Crack etc)

Step 3

END

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Samsung Galaxy S2 GT-I9100 Insert Sim Card Solution not working Solution 

Samsung Galaxy S2 GT-I9100 Insert Sim Card Not Responding Solution

Samsung Galaxy S2 GT-I9100 Insert Sim Card Error Solution

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Samsung galaxy S2 GT-I9100 No Service no network Not Working Solution

Samsung galaxy S2 GT-I9100 No Service No Network Not Working Solution Schematic Circuit Diagram

Samsung galaxy S2 GT-I9100 No Service No network Not Working Solution Step By Step

Step 1

Check memu setting

Menu → applications → setting → wireless and network →

mobile networks → network mode → setting is auto mode ?

Step 2

Menu → Phone → Keypad →
*#1234# → check Phone version →
PHONE : I9100XXXX or

PHONE : unknown

Check the connection of RF coaxial cable

(QCB01 @ page2 )

Step 3

Check the CP_VSD1,CP_VSD2_1.8V
CP_VSD1 (C351) =0.9~1.4V

CP_VSD2 (C353) = 1.8V

Replace the UCP300

Step 4

Check VREF

VREF ( C360) = 600mV

Replace the UCP300

Step 5

Change the board

Step 6

END

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Samsung Galaxy S2 GT-I9100 No Service No Network not working Solution 

Samsung Galaxy S2 GT-I9100 No Service No Network Not Responding Solution

Samsung Galaxy S2 GT-I9100 No Service No Network Error Solution

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