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Replace digitizer glass in LG Optimus F3 LS720. Also demonstrates almost complete teardown.
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Remove Back Cover
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Remove SDCard (if you have one)
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Remove SIM Card
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Remove Battery
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Using a pry took, pry the back plate off of the phone. Work your way around, prying the tabs as you come to them.
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Use pry tool to disconnect camera cable and then remove the camera
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Use pry tool to disconnect 4 ribbon cables and two antenna wires.
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Use pry tool to gently remove the logic board.
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Use pry tool to remove headphone jack.
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Use the pry tool to pry the front frame off of the main body of the phone.
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Carefully pull the digitizer cable through the slot. There will be a small piece of rubber blocking the opening. You may remove it, or just pull through it.
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Note: If the slot is not wide enough, make sure that you removed the headphone jack, as described in step 7.
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Use a heat gun or blow dryer to heat up the adhesive holding the glass in the frame. Carefully remove the glass using a pry tool.
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Clean existing adhesive off of frame, or reuse it if you managed to keep it intact.
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Apply new adhesive if not reusing existing adhesive.
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Insert new glass.
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Ensure that speaker cover at top of phone is in place.
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Reverse steps to reassemble phone.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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I followed the guide, put it back together but it now starts up and only stays up for a bit before reporting a heating issue. It feels hot in the upper left hand corner of the phone as well as the back upper middle.
any thoughts on what I did wrong?
I did this repair successfully, and linked to an album of photos below. I actually took these photos while putting it back together, but I reversed the order to help with taking it apart.
There's a couple things to watch out for.
First - there's two versions of the screen for the LG Optimus F3. You either have the (LS720/MS659/VM720) screen, which has rounded corners at the top (like mine), or the (MS659/P659), which has square corners at the top. I bought the wrong one, and cracked it trying to grind the corners off at the top.
You will need to use a heat gun to get the old screen off, and I just used an epoxy to attach the new one.
When reassembling, make sure all of your wires are plugged back in. I missed one, and I was getting no signal. Last thing - make sure you put the main center button in before you snap the front screen assembly to the main phone body.
screen replaced. phone turns on
yet device touch screen does not work.
