Samsung gt s7562 Samsung Galaxy S Duos S7562 T-Flash Card Memory card Working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Memory card, T-Flash Card Working Solution Schematic , Diagram , Circuit 

Samsung gt s7562 Memory card, T-Flash Card not Working Solution Step by Step

Step 1 

Insert & Operate

microSD card

Step 2

SD700

break down ?

Change SD700

Step  3

10thPin of SD700

= High ?

Change SD700

Step 4

4thPin of SD700

= 2.85V ?

Resolder or Replace

PM400(PMIC)

Step 5

Check
UCP300

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Samsung Galaxy GT S  Duos S7562 T-Flash card not working  Solution
Samsung Galaxy GT S Duos S7562 SD Card Not Working Solution
Samsung Galaxy GT S Duos S7562 Memory card not working solution

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Samsung gt s7562 Samsung Galaxy S Duos S7562 Pcs Rx not working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Pcs Rx network not working Schematic , Diagram , Circuit 

Unofficial support site for this Phone By Welcome Zone Haldwani Solution

Samsung Galaxy S Duos S7562 Pcs Rx network  not working Solution Step by Step 

Step 1

Continuous Rx ON
Channel : 661 CH

Cell power : -60dBm

Step 2 

U100 PIN30 ≥ -65dBm?

(L141 using spectrum analyzer)

Resolder L141 or RFS100

Check RFcable

Step 3 

U100 PIN23, L119 ≥ -68dBm?

Check the U100`s
Ant. selection diagram

Resolder L119
or Change U100

Check Main chip(UCP300)

Step 4

F103 PIN8,9
L135, L136, L118 ≥ -75dBm?

Resolder L135, L136, L118
or Change F10

Step 5

Change U100

                       

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Samsung Galaxy GT S  Duos S7562 Pcs Rx network not working  Solution
Samsung Galaxy GT S Duos S7562 Pcs Rx Not receiving Solution
Samsung Galaxy GT S Duos S7562 Pcs Rx not response solution

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Samsung gt s7562 Samsung Galaxy S Duos S7562 GSM850/900 Tx not working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 GSM850/900 Tx network  not working

Samsung Galaxy S Duos S7562 GSM850/900 Tx network not working Step by Step Solution 

Step 1 

Continuous TX ON

CONTINOUS TX ON

 CONDITION
TX POWER DAC:14500 CODE
APPLIED
GSM850 CH : 190
GSM900 CH : 62
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm

ATT. : 20dB

Step 2

Check Output power of RFS100
≥ 31.5 dBm ?

Check Main ant. contact & L131,
L103,C122, L107

Step 3

Check Output power at
R101, C169 ≥ 11dBm ?

Check the Ant.
switching diagram of U100
TP_ANT_SEL

Check GPIO control (UCP300)

Resolder or Change U100

Step 4

U100 normally is operated

Change U100

Step 5 

Check UCP300

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Samsung Galaxy GT S  Duos S7562 GSM850/900 Tx not working  Solution
Samsung Galaxy GT S Duos S7562GSM850/900 Tx Not network Solution
Samsung Galaxy GT S Duos S7562 GSM850/900 Tx power solution between two bands 

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Samsung gt s7562 Samsung Galaxy S Duos S7562 DCS Rx not Working solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 DCS Rx network
 not  Working solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 DCS Rx network
 not Working solution Step By Step

Step 1

Continuous Rx ON
Channel : 698 CH
Cell power : -60dBm

Step 2

U100 PIN30 ≥ -65dBm?
(L141 using spectrum analyzer)

Resolder L141 or RFS100
Check RFcable

Step 3

U100 PIN23, L119 ≥ -68dBm?

Check the U100`s
Ant. selection diagram

Resolder L119
or Change U100

Check Main chip(UCP300)

Step 4

Check Main chip(UCP300)

Resolder C121, C164, L120
or Change F103

Step 5

Change U100

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Samsung Galaxy GT S  Duos S7562  DCS Rx Solution
Samsung Galaxy GT S Duos S7562   DCS Rx Not Working Solution
Samsung Galaxy GT S Duos S7562  DCS Rx network Not receive solution

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Samsung gt s7562 Samsung Galaxy S Duos S7562 Receiver not Working solution

Samsung gt s7562 Samsung Galaxy S Duos        S7562 Receiver not Working solution 

Samsung gt s7562 Receiver not working solution Step by Step 

Step 1 

Operate Receiver


Step 2 

Check Receiver
Connector
HDC500

Reconnect HDC500


Step 3 

Check VR500,
VR501,R500,
C500,C502

Resolder or Replace
VR500,VR501,R500,C500,C502

Step 4 

Receiver break
down?

Receiver break
down?

Step 5 

Check
UCP300

Resolder or Replace
UCP300

Step 6 

Change main PBA


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Samsung Galaxy GT S  Duos S7562 Receiver Solution
Samsung Galaxy GT S Duos S7562 Receiver Not Working Solution
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Samsung gt s7562 Samsung Galaxy S Duos S7562 Key Not Working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Key Not Working Solution Schematic, Diagram,Circuit 

Samsung gt s7562 Samsung Galaxy S Duos S7562 Key Not Working Solution Step By Step

Step1

Power KEY

Press Power Key

Step 2

Check the P/K
Soldering State
It is OK ?

Resoldering the P/K FPCB

Step 3

Check
R714

Resolder or Replace
R714

Step 4

Re-check the P/K
FPCB STATE
It is OK ?

Change P/K FPCB

Step 5

Check
ON_SW

Resolder or Replace
UCP300

Step  6

Change main PBA

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Samsung Galaxy GT S  Duos S7562 Key Solution
Samsung Galaxy GT S Duos S7562 Key Not Working 
Samsung Galaxy GT S Duos S7562 No Key Result Solution

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Samsung gt s7562 Samsung Galaxy S Duos S7562 MIC not Working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Schematic, Diagram,Circuit 

Samsung gt s7562 MIC not working Solution      Step by Step 

Unofficial support site for this Phone By Welcome Zone Haldwani

• When MIC not Working  

Step 1 

Operate MIC

Step 2

Pollute
MIC Hole?

Clean up
MIC hole

Step 3

Signal on in
C522, C525,
C526?

Resoldering
C522, C525, C52

Step 4 

MIC
break down

Resolder or Replace
MIC

Step 5 

Signal on in
C519, C520 ?

Change UCP300

Step 6

Check Voltage
of L502 Voltage
is 1.8V ?

Step 7

Change main PBA

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Samsung Galaxy GT S  Duos S7562 MIC Solution
Samsung Galaxy GT S Duos S7562 MIC Not Working Solution
Samsung Galaxy GT S Duos S7562 MIC is not working solution

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