Got and error codes or black screen?
McNown Networks is here to help!
Now servicing playStation 3 I have found there is way too many consoles are being sent back at your cost all because of an update.
Its not the update. Over time your hard drive will have small errors and the update cannot recover your data.
Your backup will not help because the backup copy the entire hard drive with the error the only way to get around to never have this error is have the ps3 hard drive wiped clean.
I will do everything I can to save your files if you want your PS3 back playing your games fill out a support ticket NOW