How To Downgrade Ps3 Firmware 4.89 To 4.88 – Official & Proven

Doing this removes your ability to run homebrew apps. ⚠️ Essential Safety Tips

Navigate to the "Memory Manager" within the toolset via the PS3 internet browser. how to downgrade ps3 firmware 4.89 to 4.88

Follow the prompts to patch your NOR/NAND Flash memory. This "tricks" the console into accepting firmware that isn't digitally signed by Sony for that specific version. Step 3: Installing 4.88 Custom Firmware (CFW) Doing this removes your ability to run homebrew apps