(adsbygoogle = window.adsbygoogle || []).push({}); my friend was recently stuck on rogero 3.55 downgrader pup, every CFW we tried to install gave us a corrupt data error :argh:
the fix was as simple as this :yes:

step 1, we enabled QA flag with Rebug toggle QA
step 2, go to settings and scroll to bottom and press and hold L1+L2+R1+R2+down+R3+L3
step 3, if step 1 and step 2 are done correctly it should have debug settings and 2 other options, go into debug settings
step 4, find system update debug and turn it on
step 5, go to system update at top of settings and install a CFW from removable system storage (USB), it will have a phew extra options in system update but removable storage is the one you need

hopefully it goes through the installation process and you are on your new CFW

may not work on all downgrader.pups hope it works on yours, click thanks or whatever if i helped you
thanks, suss

Thread has been moved to the "PS3 Cheats and Customization" section .

I have a problem when I try to update from the xmb, it doesn't give me options and automatically updates from internet so I have to use safe mode. Hopefully this fixes the problem

Good luck Hope it works, btw that error with it downloading latest pup try disabling the network connection in network settings?