Umm, no. Supporting a different frequency using a new communication band (LTE66) requires hardware (an antennae). A software update means nothing if there's no hardware behind it.



The LG V20 was built with a LTE band 66 antennae in it. As was the ZTE Grand X4. These are the ONLY two handsets on the market that support the frequency right now.



Unless the OP3 was built an LTE band 66 antennae inside, but OP didn't enable it, it is too late to add it.

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