Being locked out of your phone can be traumatic. The PUK code is purely for your SIM Card, and woiuld not affect your lock screen. If you have forgotten your lock code, there are a couple options to reset it. If you have registered your device with Android Device Manager, it will have an option to reset the code. If you have not you will have to do a Factory Data Reset on your phone. The instructions for the reset are here: https://www.verizonwireless.com/support/knowledge-base-118101/ .
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