You can disable system update notifications in Settings > System Update > Do Not Update . Never install an official Sony update over your HFW.
Follow the site instructions to and then Install HEN . ps3 4921 hfw
The graphics were… wrong. Not glitchy, but too detailed. The pixel art had depth, shadows that shifted as if the screen were a window. His character, a lowly cartographer named Leo (same name, which made his skin prickle), stood on a floating fortress overlooking a city that looked suspiciously like his own—same bridge, same clock tower, but overgrown with crystalline vines. You can disable system update notifications in Settings
To install on your Go to product viewer dialog for this item. The graphics were… wrong
For category #2, HFW is the key. Since they cannot run CFW, they rely on . HEN is a temporary exploit that runs on top of official firmware. However, Sony patched the exploits used by HEN in official firmwares 4.83 and above.
HFW 4.92.1 "un-patches" the browser and VSH modules just enough to allow the PS3Xploit tools to inject the HEN code, turning a restricted console into a homebrew-capable machine without requiring a hardware flasher.