How can i upgrade mu phone to anroid marshmallow???

[AISHA_8]

My phone's storage sapce running out... i have 8 gb memory card and there is 6 gb empty space but phone's memory is full... All photos and videos are in sd card

 

[webworkings]

If the option to upgrade isn't in the settings of the phone then no, it won't update. Not without rooting. Which I can't answer on. You would have to ask on that in the "Rooting, Jailbreaking & Unlocking" Forum. http/www.tomsguide.com/forum/forum-117.html