iPhone 3Gs LCD Display backlight Not Working Complete Repair Solution

This is the solutions that covers for iphone 3Gs LCD display screen backlight not working or unable to light up and result to a dark screen display. If ever encountered this problem on iphone 3Gs especially wet damaged devices this solution a big help for it consists of two different stages of repair.

I have fix this problem many times and this solution solved the problem. I have been tried installing a new LCD screen module but the problem still exists.
There is spots on the iphone 3Gs located at the LCD pin connector that most often  get damaged and result to the display backlight won't work.
Just download for the clearer and larger image of the solution below to see and try it for yourself.

Download iPhone 3Gs Backlight Not Working Solution

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iPhone 3Gs Insert SIM card repair solution manual

This image shows the tracing line paths of the iphone 3Gs sim card pin connector assembly. If one of those tracks is open or cut cause by a wet damaged the iphone 3Gs may result  to insert SIM card problem.
You can apply jumper to those particular location if found cut or open to fix the insert sim card problem on iphone 3Gs.

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iPhone 4 Back cover removal procedure

This guide will show you how to remove the back cover (rear panel) to access components inside your iPhone 4. All you need to have is Phillips #00 Screwdriver to remove the two 3.6 mm Phillips screws next to the dock connector.

But before disassembling your iPhone, always make sure that the silent switch is activated and your iPhone is powered off.

Disassembling iPhone 4 Rear Panel

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Guide to replace iPhone 4 glass panel, digitizer, and LCD panel assembly

This guide will show you how to remove and replace a broken or damaged glass digitizer and LCD panel on iphone 4.
You can use this guide to replace your iPhone's front panel assembly. By replacing the front panel assembly will give you a new front glass panel, digitizer, and LCD.

Installing iPhone 4 Front Panel Assembly

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iPhone 4 Rear Camera replacement procedure

Here's the guide on how to replace a damaged rear camera on iphone 4, this guide will show you a step by step procedure form how to disassemble the iphone 4 to install and replace the rear camera on it.

Installing iPhone 4 Rear Camera

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Replacing iPhone 4 Front Facing Camera

This guide shoes you how to remove and replace the iPhone 4 damaged front camera.
You can use this guide to replace the small VGA front facing camera.


Tools needed

* Paper Clip
* Phillips #00 Screwdriver
* Small Flathead Screwdriver
* Spudger
* Tweezers
* iPod Opening Tools

Installing iPhone 4 Front Facing Camera

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Installing iPhone 4 Logic Board Assembly

You can use this guide to replace your iPhone's brain or main logic board circuit.
Before disassembling your iPhone, be sure the silent switch is activated and your iPhone is powered off.

Tools needed

* Paper Clip
* Phillips #00 Screwdriver
* Small Flathead Screwdriver
* Spudger
* iPod Opening Tools

Installing iPhone 4 Logic Board

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iPhone 4 Dock Connector Repair manual

Here's a repair guide on how to fix the iphone 4 dock connector.
You can use this guide to replace the dock connector assembly, which is includes the dock connector and lower microphone.


Tools Needed

* Paper Clip
* Phillips #00 Screwdriver
* Small Flathead Screwdriver
* Spudger
* Tweezers
* iPod Opening Tools


iPhone 4 Dock Connector Repair manual

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iPhone 4 Speaker Enclosure - repair manual

You can use this guide to remove the speaker enclosure and its integrated lower antenna.

Tools Needed

* Paper Clip
* Phillips #00 Screwdriver
* Small Flathead Screwdriver
* Spudger
* iPod Opening Tools

Before disassembling your iPhone, be sure the silent switch is activated and your iPhone is powered off.

iPhone 4 Speaker Enclosure - repair manual

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iPhone 4 damaged Home Button Repair manual

You can use this guide to replace a damaged home button to regain use of your iPhone 4.
Just follow on the instruction  on the link below on how to do it properly without damaging your iphone.

Guide on how to repair and replace iPhone 4 damaged Home Button

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iphone 4 battery installation guides

A step by step procedure on how to replace a weak battery on iphone 4.
Replacing the battery on the iPhone 4 requires minimal disassembly.

iPhone 4 battery installation

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iPhone 3GS home button key malfunction repair manual

This picture serve as a guide on how to fix the HOME BUTTON key of iphone 3GS, the read line in the picture is the tracing spots which is possibly damaged or cut when the HOME BUTTON key stop responding. You can apply a jumper on that particular location using a tiniest magnetic wire or jumper wire. 

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iPhone 2G power ON-OFF switch ways or line paths

This picture shows iphone 2G power ON-OFF  switch ways or line paths through to the pin connector of the flex cable assemblies, this solution can be used when the said line paths is being cut that result to unable to power up the iPhone 2G.

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iPhone 3G PCB board components layouts and labels

This is the components layout of iPhone 3G PCB motherboard layout with desired label of each particular chips (IC) and components, it includes how the said chips works on the circuit and particularly who made and manufacture the said chips and supply to apple company to make the iphone 3G possible.

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iphone 2G Dead set, unable to power up - repair

The iphone 2G unable to power up due to a cut battery positive voltage line (B+)ways to supply the circuits, this picture shows on how to trace and add a jumper to sustain the loss power supply voltage from the battery positive terminal.

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