Pixi 3 (4.5) 5017a

hey there!
I think you can help me out with some instructions on how to upgrade my phone which has the alcatel lollipop to any sotck marshmallow or Nougat if possible, I know a little about this, here you have some useful info:
CPU: MT6735M
RAM: 1GB
GPU: Mali-T720MP2
Android 5.1
Kernel: 3.10.65
Model: 5017a

thanks in advance for your help, I really appreciate it..!!!

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