HOW TO INSTALL CUSTOM ROM -_-

Go To Recovery Mode :

 Switch off the Phone Press and hold "Volume Up + Power"  Butons

Select Recovery Mode by Volume Up and Proceed to Recovery by Volume Down

CWM:

 1. - wipe data factory reset --> Yes--delete all user data  

2. - wipe cache partition --> Yes--Wipe Cache   

3. - advanced --> Wipe Dalvik Cache --> Yes--wipe dalvik cache    

4. - mounts and storage --> Format /System /data /cache (Recommended)   

5. - install zip from sd --> - choose zip from sdcard --> - Select Zip    

6. - reboot System now

that's it