Did you install via OTA or from the support tool milobramble
LRX21Y
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Tardus, you mentioned in another thread that the LG Updater version (according to XDA) may have a bug in the LTE radio, that the OTE might fix it--did you see any more about that?
Seems if they are the same build versions, that wouldn't hold true. What was the nature of the LTE bug you read of? Have you seen it happen on your device?