Snippet

Before Installing This Update Make Sure You Have Rooted Symphony W71 Which has CWM installed.

Download Custom rom(.)zip From The below provided link:

http://adf.ly/Z0wBu

 After Downloading, Boot into your Recovery by Holding Volume UP + Power
  Select= Wipe Data And Factory Reset  ( Press YES )
Then Install Zip from SD Card Named CUSTOM ROM.ZIP ( YES )
=Go To Advanced = Wipe Dalvik Cache ( YES )
= Go Back
= Reboot System

Enjoy Android Version 4.2.2 In Your Symphony W71.

 Thank You