Ok so I have a Note 20+ unlocked and since the Sept update Ive had real bad random lag. I did a factory reset and fresh install but to no avail. Oct came and I hoped for a fix but not so much. Samsung wants me to take it to Ubreak for it to be fixed but Im thinking its just a bad install. Samobile shows DUH3 as the lastest build with 9/9/21 being the date. Current build on my phone is DUI7. Lag isnt present all the time just doing things like attaching photos or google app will zoom in 200% randomly or youtube app slows everything to a crawl. so my question is does anyone know if I can go back to DUH1 and go from there?