KarlE,
Thank You for your help. You were right! I miss the step to rename the file. I am good now.
- Download flashable zip from the OP and rename it "PG86IMG.zip" (without the quotes)
- Place in the root of the sdcard
- Power off phone (make sure you turn off hot boot or pull the battery when it's off)
- Power on the phone holding power and volume down
- Follow the prompts to flash it
- Delete .zip (PG86IMG.zip) after booting