How did you root it?
Try using
"This Guide"
Then just put the .zip file on your SD Card.
Turn off the phone.
Hold Vol Down and Power until you reach a white screen that says:
"HBOOT
<VOL UP> FastBoot Mode
<BACK> Simlock
<HOME> Recovery"
Select "Home"
Your phone will launch "Android System Recovery"
Select "Wipe"
Then "Wipe data/factory reset"
Press "Home" to confirm
Press "Back"
Select "Flash zip from sdcard"
Then select the zip file
Press "Home" to confirm
Once finished select "Reboot system now"
Hope this helps!!