One of the drawbacks of System Update on PS3 is that it doesn’t have resume support.
Therefore, you have to restart from the beginning in case download fails in between.
If everyone knows a way to downgrade, please let me know. OFW data is stored on the machine's flash memory, so just clearing the HDD (as you discovered) doesn't help.
Old school E3 flasher downgrade method works for any OFW, but it's definitely a chore.
If your PS3 system software version is 4.55 (or later), you do not need to perform this update.
For more Play Station 3 reviews and information please click here.Therefore, here’s what I do as an alternative method.Confirm that the storage media is connected to Play Station 3 system, and retry the update process as instructed above.After applying the update, installing 4.82 wasn't possible anyone.
The console remembers the last update version outside of the removeable hard drive (I know this because I wiped it).
The PS4 can be updated via the XMB and System Update options.