Introduction
This guide will walk you through the steps to remove the charging port from your LG CU400. It will help remove the battery, the lower half casing, the removal of the motherboard from the phone casing, and the removal and replacement of the charging port on the motherboard. Before doing this, be aware that you will be unable to use your phone until the replacement is complete and the phone fully reassembled. You should also be careful when handling the motherboard because it has delicate wires extending from it. This guide also requires a soldering iron that can be dangerous to use. The following video has information on micro soldering: https://www.youtube.com/watch?v=jGZKsuaJ...
What you need
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Remove the sim card by sliding the card out from under the retainer using either your fingers or a spudger.
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You should notice that the number pad is loose and can simply be taken out of the open phone casing.
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Using a desoldering braid and a soldering iron, remove the soldered connections. Use the website " How To Solder and Desolder Connections " for more information on soldering.
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Tool used on this step:Tweezers$4.99
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You will need to coat the boxed area with flux liquid and then heat it with a heat gun while gently prying the charging port with the micro soldering tweezers. Use the video https://www.youtube.com/watch?v=jGZKsuaJ... for more information on micro soldering.
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To reassemble your device, follow these instructions in reverse order, but refer to specific step's reminders.
To reassemble your device, follow these instructions in reverse order, but refer to specific step's reminders.