qa toggle

Hi all. I promised I googled and youtubed for this before posting here. I'm certain it's been asked. I just couldn't find it. I'm trying to downgrade fro, 4.89 to 4.88 to use CFW. I'm trying these steps: 4.89.1 HFW->QA Toggle->4.88.1HFW->4.882 CFW But I must be doing something wrong or not...

Hey Guys, Noob question...Just wondered if it is possible to downgrade from CFW 4.83 back to 4.82. I had QA enabled when on 4.82 but now cant re enable it in rebug toolbox. Do i need a E3 or can someone link me to a guide for the downgrade if its possible? Thanks as always!