I have an Alcatel One Touch Idol 3 running through Cricket as a carrier in the United States. It is currently on an Alcatel version of Lollipop that is reversible. My OS also frequently crashes hard and reboots.
I'm coming from using Motorola devices that were close to stock Android, and I want to go back to pure android and get the latest. Can I put Marshmallow on my phone without rooting? I'm technically able, and I could root my phone if I wanted to. I've done it many times before. I just want to put the latest Android on my phone.
Can I do it? If not, why not?