You want to keep your console completely stock. Maybe you prefer the original XMB look, or you heard that a later update (4.83/4.84) broke something specific for you. You want to revert to 4.82 "just because."
Here is why: Installing an older official firmware on a PS3 that has been updated to a higher version (like 4.89 or 4.91) will . Sony uses "rollback protection." You cannot go from 4.91 down to 4.82. ps3 4.82 ofw download
Unless you are a digital archaeologist wanting to run a specific 2017 exploit exactly as it was released, you likely don't need 4.82 anymore. The modern scene has moved on to version 4.91, which includes all the same features and better stability. You want to keep your console completely stock
You want to jailbreak your PS3, but you have a specific guide open that says "Start from 4.82." The problem? Most modern guides use 4.90 or 4.91 . If you are following a 6-year-old tutorial, you are likely overcomplicating things. A Crucial Warning (Read this before searching) If you are looking for 4.82 to install Custom Firmware : Sony uses "rollback protection
In reality, it was a security patch designed to plug previous jailbreak exploits. But ironically, it became the most desired firmware for homebrew enthusiasts. Here is the historical context: After years of cat-and-mouse, the hacking scene had become fragmented. If your PS3 was on version 4.81 or lower, you were golden. If you were on 4.82, you were stuck.