(adsbygoogle = window.adsbygoogle || []).push({}); hi ive recently jus converted to dex using the derek trotter tutorial i then tried to go to 4.50 psita ive downgraded to 3.55 but didnt switch from rebug to normal in the toolbox so now it says im on cex and dex and when i go to update it shows the update but i cant select it idk what im doin wrong please if u can help me out...................

Try entering safe mode on the ps3. Or try installing let's say rebug theb go back to ps3ita and see if that solves the problem