how do i remove frequency from my UBC72XLT?

how do i remove frequency from my UBC72XLT?
i have a UBC72XLT handheld scanner and i want to reset it so i can start fresh i lost my manual any help would be great.thanx

Best answer:

1. Turn off the scanner.
2. While holding down 2, 9, and Hold, turn on the
scanner. It takes about 3 seconds to initialize
and CLEAr appears.