Is there another way to Update the Note 4 to Marshmallow without an OTA?

[AC Question]

I am currently having issues updating the Note 4 (SM-N910A) to Marshmallow. I have it unlocked and I use Cricket as my carrier. I don't like the fact that I have to ask for someone's SIM card to update my phone. I'm just wondering if there's another way to manually update it without rooting it. I tried to use Kies and Smart Switch, but its telling me that It's up to date. Any other ideas that I can update it?

 

[nahoku]

Since it's an AT&T phone, you could ask AT&T to update it for you. Many people have done it. You could also go to a BestBuy and see if they can do it.