updating Android

I have an Alcatel onetouch pop c7 phone with Android 4.2.2 installed I would like to update to a more recent version. I've tried to use the update option on the phone but it says that the system is up to date. How can I update manually?
Thanks

from Android Forums at AndroidCentral.com - Ask a Question http://ift.tt/2x3q71l
via IFTTT