CDMA version of the fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. 16 or 32 GB / Model A1349 / CDMA compatibility.

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Water Damaged -Works but NO Display

Replaced Battery and works ok minus display. Logo flashes now and then when cable is connected. I can play music and touchscreen appears to work. I just cant see anything.

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I tried a flashlight as suggested and can see the screen.....what do I need to do ?

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Gary Coker, how did you manage the original water damage? Have you taken a good look on the logic board to determine if there is any corrosion damage? Besides changing the battery, what have you tried?

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Backlights gone out. You need a new display

iPhone 4 LCD Screen and Digitizer (CDMA/Verizon)

iPhone 4 Display Assembly Replacement

Technically you can get away by replacing the backlight. Here's a guide. Repairing iPhone 4 LCD Backlight Dim spot issue But it's a lot of work, involving a part that's already in the assembly, and the chance of breaking stuff while you're doing it is high

iPhone 4 LCD Screen and Digitizer (CDMA/Verizon) Image
iPhone 4 Display Assembly Image

Guide

iPhone 4 Display Assembly Replacement

Difficulty: Difficult1 saat

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Hello Gary,

There could be two main problems with your phone due to the water damage.

The first is that your LCD screen could have been damaged, in which case you can follow the repair guide for your iPhone here. Since you state that using a flashlight allows you to see the screen, I think replacing the screen would be sufficient.

The other possibility is that the logic board within your iPhone is damaged. In this case, you can follow this guide to replace the logic board. I am not sure how quickly you could find a spare logic board for your phone, but it may be easier (and possibly less expensive) to purchase a newer iPhone such as the 5 or 5s.

iPhone 4 Verizon Display Assembly Image

Guide

iPhone 4 Verizon Display Assembly Replacement

Difficulty: Difficult1 - 3 小时

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Gary Coker will be eternally grateful.
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