why my lg g4 h815p entel cannot recieve a marshmallow version

[AC Question]

why my lg g4 h815p entel cannot recieve a marshmallow version

 

[B. Diddy]

Welcome to Android Central! Did you get the phone directly from Entel, or was it originally from another carrier? A carrier-specific phone typically needs to be on that network in order to receive the official OTA system update.