How to Upgrade LG L15g phone from Kitkat to Marshmallow

[HH0]

Hey all,
I have been trying to upgrade my LG L15g phone Android system from Kitkat to Marshmallow, but there doesn't seem to be anything out there that will work with my phone. Any suggestions?

 

[Rukbat]

The normal method is to wait until your carrier sends you an update. Contact them to start.

 

[TwitchyPuppy]

It seems like you're put of luck.