It's a CWM zip so don't unzip it, flash it through CWM Recovery.
Can you tell me how to "flash it through CWM Recovery" ?
I am technically-challenged on this issue
Download the script to your device from the previous post. 'CWM_Backup_Wipe.zip' should show up in your downloads.
The easiest way to flash anything in ClockworkMod Recovery is through Rom Manager
download Rom Manager herehttps://play.google.com/store/apps/details?id=com.koushikdutta.rommanager&feature=search_result#?t=W10.
When you open Rom Manager, the section on the top will tell you the recovery version that you have installed. Make sure that you have the latest version of CWM.
The third option down is the easiest method.> Install ROM from SD card.
At the "ROM Pre-installation" screen, no options need to be checked. Press ok
Reboot and Install screen will popup and press ok
to initiate the install.
Alllow the superuser request
Your device will now reboot into recovery and flash the script. If the device completes the script without booting up, press the power button to boot.
If you have any other issues let us know!