Lg leon update help

I have a LG leon lte from metro pcs. I have no means to open and recompress a zip and also don't know how to mess with them. My help/question being can someone remove the product fingerprint script so as it can install an update because something happened to my phone and now the update does t go thru due to a different Fingerprint but it's still 5.0.2 and Fingerprint error says 5.1.1

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