This symptom can be attributed to many different factors. Often times a simple reset of your device will clear up issues that are causing your device to freeze or become unresponsive.
This device has a non-removable battery. Do not attempt to replace the battery yourself or you may damage the battery, which could cause overheating, fire, and injury. The lithium-ion battery in your device should be serviced or recycled by LG Electronics or an authorized service provider.
To Perform a Soft Reset:
Press and hold the Volume Down and Power keys simultaneously until the device reboots. Typically this will take 11-12 seconds.
Release the keys when you see the LG bootup logo
Note: Depending on the state of your device you may see it perform a screenshot and/or a pop-up as shown below. This is normal.
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