(THIS IS MY PERSONAL OPINION, NO OFFENSE TO 6.20 TN USERS) First I tried to install Total-Noob's 6.20 TN-A Hen, but it has so many bugs,. But Virtuous Flame removed the bugs on 6.20 TN-A hen, and I successfully install it on my PSP. 6.20 TN-B Hen came, and I upgraded my Hen,. Then Virtuous flame and Coldbird release a signed 6.31 & 6.35 PRO Hen. I remember that Virtuous flame is the legendary Liquidzigong (The maker of Prometheus CFW and ISO Loader) So I upgraded from 6.20 to 6.35. I notice some of my games like DBZ Tag-team where working unlike on 6.20 TN-B. And now Virtuous Flame AKA Liquidzigong and Coldbird release a Light-Custom firmware on 6.35, It was very easy to install and no risk of bricking your PSP + all of my games are working!!. So I put my trust on Virtuous Flame AKA Liquidzigong's hacks rather than Total-Noob.