Samsung galaxy S4 I9500 IR LED Not Working Solution

Samsung galaxy S4 I9500 IR LED Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S4 I9500 IR LED Not Working Solution Step By Step

Step 1

Abnorma IRLED Part

Step 2

Check the Voltage

VCC_1.8V_AP,VCC_2.8V_AP

C756 = 3.4V

Resolder U600 or U1001

Step 3

Check the Voltage
R1002 = 1.8V
R1003 = 1.8V


Resolder U1001 or heat over UCP5000\

Step 4

check the voltage when
barcode active mode
R1046 = 1.8V
R716 = 1.8V

Resolder U1001 or heat over UCP5000
or Q701 or resolder

R716,717,718,719,720,721,722,1,723,726

Step 5

IRLED
operate correctly?


change RCV module

Step 6

END

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Octoplus Octopus Box LG v 2.0.4 Setup Download

Octoplus/Octopus Box LG v.2.0.4 - another world's 1st update! 🐙

Octoplus/Octopus Box LG v.2.0.4 is out!

Unofficial Site By Welcome Zone Haldwani 

Added world's first support for AS323, LS751 and additional support for the wide range of LG mobile phones!

Octoplus/Octopus Box LG Software v.2.0.4 Release Notes:

🐙 Added support for the following models:

- AS323 - added world's first Direct Unlock, Repair IMEI, Read/Write NVM, Read Security, Write Security backup, Read/Write QCN, Repair BT Address, Repair Wi-Fi,
- AS323 - Write Firmware (in Test Mode), Read Full Flash (Dump NAND), Reset Screen Lock (thanks to Mr. Ariel Sellanes).
- LS751 - added world's first Repair MEID, Repair AKEY / SSD_A / SSD_B / OTKSL / SPC, Read/Write/Repair NVM, Read/Repair Security, Write Security backup,
- LS751 - Read/Write QCN, Read/Write PRL, Repair BT Address, Repair Wi-Fi, Write Firmware (in Test Mode), Read Full Flash (Dump NAND).
- D625 - added Direct Unlock (without root, Test Mode), Repair IMEI (without root), Read Full Flash, Reset Screen Lock.
- D410 - added Direct Unlock and Repair IMEI (A/B) without Root.
- D410H - added Direct Unlock and Repair IMEI (A/B) without Root.
- D410HN - added Direct Unlock and Repair IMEI (A/B) without Root.
- D618 - added Direct Unlock and Repair IMEI (A/B) without Root.
- D724 - added Direct Unlock and Repair IMEI (A/B) without Root.
- D728 - added Direct Unlock and Repair IMEI (A/B) without Root.
- D729 - added Direct Unlock and Repair IMEI (A/B) without Root.
- D856 - added Direct Unlock and Repair IMEI (A/B) without Root.
- D857 - added Direct Unlock and Repair IMEI (A/B) without Root.
- D858 - added Direct Unlock and Repair IMEI (A/B) without Root.
- D858HK - added Direct Unlock and Repair IMEI (A/B) without Root.
- D859 - added Direct Unlock and Repair IMEI (A/B) without Root.

🐙 Added Write Firmware (now is possible to convert for flashing KDZ, DZ and TOT files) for the listed below devices:

- H815, H815AR, H815K, H815L, H815P, H815T, H815TR,
- H630, H630D, H630I,
- H634,
- H635, H635A, H635AR, H635C,
- H636.

🐙 All supported operations are described in details in the manual ("Cable & Manual" button in Software)

Download Octoplus/Octopus Box LG v.2.0.4

Find out more at: www.octoplusbox com

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Samsung galaxy S4 I9500 Sensor Part 1 Barcode emulator Not Working Solution

Samsung galaxy S4 I9500 Sensor Part 1 Barcode emulator Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S4 I9500 Sensor Part 1 Barcode emulator Not Working Solution Step by Step

Step 1

Abnorma Barcode Part

Step 2

Check the Voltage

VCC_1.8V_AP,VCC_2.8V_AP

C1007 = 3,3V

Resolder U600 or U1001, or U1002

Step 3

Check the Voltage

R1002 = 1.8V

R1003 = 1.8V

Resolder U1001 or heat over UCP5000

Step 4

check the voltage when

barcode active mode

R703 = 1.8V

R747 = 1.8V

Resolder U1001 or heat over UCP5000

or Q702 or resolder R747,748,749,750

Step 5

Barcode

operate correctly?

change RCV module

Step 6

END

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Samsung Galaxy S4 I9500 Sensor Part 1 Barcode emulator  Not Working Solution 

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Samsung galaxy Grand i9082 WCDMA BAND 8 TX 3G Network not working Solution

Samsung galaxy Grand i9082 WCDMA BAND 8 TX 3G Network not working Solution Schematic , Diagram , Circuit

Samsung galaxy Grand i9082 WCDMA BAND 8 TX 3G Network not working Solution Step by Step

Step 1

Check U101 PIN13 :

About 22 dBm ?

CHECK soldered

RFS100, C152, C153, L100,

L101, L144, ANT100

Step 2

Check the Voltage at

C100 = VBAT_RF ?

Resolder or change

U101, C10

Step 3

Check L105, L106 :

About 22dBm ?

Resolder or change

L105, L106

Step 4

Check component

soldering status OK at

DUF100

Resolder or change

DUF100

Step 5

Check L104, C108, C109 :

About 22dBm ?

Resolder or change

L104, C108, C109

Step 6

Check the Voltage at

C104=VOUT_CHARGER?

Resolder or change

U100, C104

Step 7

Check C148 : About

0dBm ?

Resolder or change

C148

Step 8

Check the voltage at

{C139,C138 =

VOUT_CHARGER ?}

& {L402

= VOUT_CHARGER?}

& {C136, C137,C453 = 2.7V ?}

& {C142, C143,C453 = 2.7V ?}

Resolder or change

U104

Step 9

Check the freq. at

OSC100

PIN1,3 : 26MHz ?

Change or resolder

OSC100

Step 10

WCDMA band8 Transmitter is O.K?

Resolder or change

UCP300

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Samsung Galaxy Grand i9082 WCDMA BAND 8 TX 3G Network not working solution 

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Samsung galaxy S4 I9500 NFC Signal Not Working Solution

Samsung galaxy S4 I9500 NFC Signal Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy S4 I9500 NFC Signal Not Working Solution Step by Step

Step 1

NFC is not working

Step 2

Check the Battery

(NFC Antenna is in Battery)

Check the battery

(antenna/contact crack, open, damaged)

Step 3

Check the Voltage on

NFC_EN, NFC_IRQ

goes high

Check the TP839, TP842

Step 4

Check 26.00MHz Clock which

is OSC801 with C868

Check the OSC801(crack, open, etc.)

Step 5

Check the Voltage on

C868(VBAT), C882(1.8V) goes

high

Resolder or Replace U800

Step 6

END

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Samsung Galaxy S4 I9500 NFC Signal Not Working Solution 

Samsung Galaxy S4 I9500 NFC Signal Not Touching  Solution

Samsung Galaxy S4 I9500 NFC Signal Not Device Solution

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Samsung galaxy Grand i9082 WCDMA BAND2 TX 3G Network not working Solution

Samsung galaxy Grand i9082 WCDMA BAND2 TX 3G Network not working Solution Schematic , Diagram, Circuit

Samsung galaxy Grand i9082 WCDMA BAND2 TX 3G Network not working Solution Step By Step 

Step 1

Check U101 PIN13 :

About 22 dBm ?

CHECK soldered

RFS100, C152, C153, L100,

L101, L144, ANT100

Step 2

Check the Voltage at

C100 = VBAT_RF ?

Resolder or change

U101, C10

Step 3

Check L116 :

About 22dBm ?

Resolder or change

L116

Step 4

Check component

soldering status OK at

DUF102

Resolder or change

DUF102

Step 5

Check L120, L121, C123 :

About 22dBm ?

Resolder or change

L120, L121, C123

Step 6 

Check the Voltage at

C120=VOUT_CHARGER?

Resolder or change

U102, C120

Step 7

Check C150

About 0dBm ?

Resolder or change

C150

Step 8

Check the voltage at

{C139,C138 =

VOUT_CHARGER ?}

& {L402

= VOUT_CHARGER?}

& {C136, C137,C453 = 2.7V ?}

& {C142, C143,C453 = 2.7V ?}

Resolder or change

U104

Step 9

Check the freq. at

OSC100

PIN1,3 : 26MHz ?

Change or resolder

OSC100

Step 10

WCDMA band2 Transmitter is O.K?

Resolder or change

UCP300

END

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Samsung galaxy S4 I9500 GPS Not Working Solution

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

Samsung galaxy S4 I9500 GPS Not Working Solution Step By Step 

Step 1 

GPS is not working

Step 2

Check GPS function ON 

Enable GPS Function in the setting.

Step 3

Check the Antenna connect

 1. Resolder or Replace ANT801

2. Replace REAR

Step  4

resolder

Check solder condition at No

C813,C874,L803,L806,L816

Step 5

Check 26MHz Clock at 

Check OSC802,C871,C872 (short, open, crack, etc.)

OSC802

Step 6

Check the voltage on

C873=2.8V & C847 > 1.8V

Check PMIC(U600) & UCP5000

(short, open, crack, etc.)

Step 7

END

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Samsung Galaxy S4 I9500 GPS Not Working Solution 

Samsung Galaxy S4 I9500 GPS Not Nevigation Solution

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