The LG G3 screen replacement process is considered average in difficulty when it comes to high end smart phones currently being sold. Unlike LGs previous flagship phone the G2 this one has an easily removable battery cover and battery that can be replaced by the user with no special tools required. Removing the display is a moderately easy task when compared to something like the iPhone 4S. It is comparable in difficulty to Samsung's Galaxy S4 and S5 but more complex that the S5 as well as the iPhone 5 or 5S when it comes to complete LCD assembly replacement. In the video below we will demonstrate the entire process from start to finish. The replacement screen is available in three colors and can be purchased through the links further down. For tools please visit our Cell Phone Repair Tools page.
For this process you should allow at least thirty minutes if you are an experienced cell phone technician. For beginners the job can take an hour or more. When working with broken screen it is a good idea to wear some form of eye protection as small pieces of glass can cause severe damage if they end up in the wrong place. Placing tape over the screen will help to minimize this hazard. A heat gun is also recommended as it makes the old screen easier to remove and less likely to break into smaller pieces.
In some cases the LCD may continue to function after the glass lens cracks but in many cases the digitizer will stop working making this repair a priority for most users. While the phone can be purchased for about $199with a new contract or renewal the replacement cost with no contract is about $560 at the time of this post. This makes repairing a broken screen a good investment. Depending on the deductible cell phone insurance might be a good idea also.
AT&T and T-Mobile version
When replacing your screen always inspect the new part closely. It should not be missing any parts that the original has. In the photo below you can see that the blue Kapton tape from the old screen will need to be transferred to the new one. In this case the tape protects underlying contacts from grounding out against other parts of the phone. Also make sure that the metal mesh where the earpiece is located gets transferred to the new part before you install it. Without this in place the magnet inside of the speaker will attract small metallic particles over time and cease to function properly or may quit altogether.
So far we have not seen anything unusual when it comes to repairing the G3. In the case of the previous model there were occasional issues with the phones LCD after it was replaced. It seems as if LG might have taken care of this problem although it could simply be an unintentional design benefit. From a users perspective this seems to be a nice phone for the price although we still hear from many people that getting used to having a power button on the back side of the phone takes some getting used to. Since most of us set our phones down face up we have to wonder whether this will have any detrimental effects to the power button. At the same time it seems as if this might help to prevent the main camera lens from being damaged since it does provide a buffer between the camera and whatever surface your phone happens to land on. Of course if you found yourself here then there is a good chance that you are already considering a protective case for your G3. We recommend the Otter box style cases as they offer the most protection. Of course this does come with a tradeoff as your phone will become somewhat bulkier when you put into this kind of case.
LG G3 screen replacement steps
Replacing the screen on an LG G3 this is a relatively straightforward project with a completion time of about 30 minutes to an hour depending on your skill level and experience. You should start by making sure that the phone is powered off. Flip it over and remove the battery cover. There's a small divot towards the bottom end that makes it pretty easy to pry open unlike the G2 which took a bit of force and sounded as if it was breaking when you pried on it.
Next we will want to remove the battery and make sure that the micro SD and SIM card have been ejected from the phone. The SIM card is a bit tricky to get out. You might have to fool with it a little to get it started and if necessary use an object that will will give you some grip. If you're very careful you can use something sharp like an icepick and just gently slide it out down towards the inside of the battery case.
LG G3 Display Replacement Video
From here you will remove all of the screws from the two rear panels. There's one panel at the bottom and one at the top end. There are several screws around the perimeter which are interchangeable but note that the one in the center near the the camera is a slightly different size so you don't want to mix it up with the others. It's actually shorter so putting one of the longer screws in its place might cause damage to your phone. Go ahead and get all of the screws out and be sure that you haven't missed any of them before you start prying. You can use a small pry tool and start with the soft spot down at the bottom corner. You should able to get under the panel there and just work your way around. You’ll see that the bottom one comes off without much effort and that actually makes it a little bit easier to get underneath the upper panel. You should now be able to lift that one up with your finger and then from there just work your way around the top end and the opposite side. There are several clips here that you will encounter so don't force anything as you can crack this panel pretty easily if you put too much stress on it. If you take your time and work your way around carefully it will come off without breaking.
Testing the LG G3 LCD and digitizer
Go ahead and set the panels aside for now. The first thing that we want to do is make sure that the display we ordered is functioning properly. What we suggest doing next is taking the new part and connecting it to the phone before we remove the old screen. You'll have two pop connectors attached to the display that you can plug in temporarily. Set the battery inside and power the phone up. Check to make sure that the LCD and digitizer are fully functional. Be careful during this process as the cables are easily damaged despite having a certain amount of flexibility. The main thing you want to avoid is placing any stress on them.
Once you have confirmed that the display works correctly you can power down, remove the battery, and disconnect the display.
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