so i have a 4.21.2 dex ps3 and i wnated to get it online so i ask around and i get told to use a spoofer i use the sgk one it installs fine ect but now i want to disable it because it didn't work but what i didnt no was that to disable the spoof i had to reinstall my firmware. so i download 4.21.2 rebug and go on xmb and install it but it says data corrupt i try a diffrent download but still data corrupt i try it trough recoverey but it says no data found. i did some research and found that you cant install firmware over dex so i looked into going back to cex but the usb that had my files on to go back broke. i found no way to go back to cex on 4.21.2 rebug is it possible? or is there a way to just delete the spoofer files? or somehow remove the spoof?