[AC Question]

I have a LG Premier LTE, the carrier is straightalk but the service is Tracfone. I got it on the cheap at Walmart.

That said, how do I update the android OS that is currently running 5.1.1 lollipop to 6.0 marshmallow or to Nougat 7.0?

[hallux]

If tapping the "Check for Updates" button does not reveal an update, you're likely stuck with 5.1.1. Those lower-tier devices don't get the attention of mid-range or flagship devices when it comes to getting updates.

Now, there are folks out there that make it a hobby to develop updates for devices that won't get them, but the lower-end devices are not likely to garner the attention of other devices.