Replacing the vibration motor in your LG G3 Vigor requires the following steps:
Locate the notch at the bottom right of the phone.
Remove the rear cover by gently pulling it away from the phone.
Lift the battery out from its slot located at the bottom of the device.
Remove the twelve Phillips #00 screws holding the midframe in place.
Insert a plastic opening tool into the seam and work it around the device's edge, prying the midframe away from the rest of the phone.
Disconnect the ribbon cable from the motherboard using a spudger.
Unplug the ribbon cable from the motherboard using a spudger.
Use the flat edge of a spudger to carefully release the motherboard ribbon connector.
Push the motherboard retaining flaps back with the pointed end of a spudger.
Remove the vibration motor using a spudger.
Some force may be needed due to minor adhesive holding it in place.
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