iPhone 3G, 3GS, 4, 5 Display Problems with Screen Blank

Problem

Users may experience a blank screen when their phone becomes frozen or unresponsive. This may result from low battery power or the need for a software update.

So, you have a problem with your iPhone screen and are looking to fix it. Troubleshooting your iPhone to find and fix the cause of the problem often is quite easy and simple to fix.

Solution

iPhone 3G, 3GS, 4, 5 Display Problems with Screen Blank

Alternative Solutions

A first step in troubleshooting an iPhone with a blank or black screen is to plug it into your computer or a power supply. Often a low battery is a cause of this and making sure your phone has a good connection with your computer and leaving it for 5 minutes can solve the problem.

Step two. If your iPhone isn't working after 5 minutes or the previous step haven't worked and you still have a blank or black screen then you potentially have two problems. The first one, if your computer is not recognizing the iPhone is a problem with the power into the phone. Now this could be the power cable or the power cable socket in the phone. Try swapping power cables with a friend or relative and see if this works. If not then you have a problem with the power socket in the phone. At this point it is worth taking into a shop to get repaired, this shouldn't be too expensive make sure you take it to several places and get several quotes before you decide to go for a repair.

Step three. If your phone is being recognized by your computer but DFU mode hasn't resolved your problem then the problem resides with the screen itself or the power supply to the screen inside the phone. Both of these can be damaged if there is any trauma to the iPhone. If your screen is blank as opposed to black I would suggest that the problem is much more likely to be in the mechanics of the screen. The screen can be replaced at home, but does require some equipment and technical ability. (Note: this may void any warranty you have and as such is not endorsed by the author.) Again, if you take it to a repair shop make sure you get several opinions and quotes before settling on one to do the replacement.

The power supply to the screen inside the iPhone is even trickier to replace and really shouldn't be attempted at home, follow the same advice as getting a screen replacement at a repair shop (lots of different quotes etc).