In this video I have shown "how to update canvas 5 E481 to marshmallow"
Canvas 5 doesnt have official marshmallow update.
But it clones do.
ROM and patches with written guide : https://forum.xda-developers.com/andr...
Bugs: NVRAM....find tutorials to resolve..however it is not a big issue..
******PROCEED UNDER YOUR OWN RISK*******