How To Downgrade Ps3 Firmware 4.89 To 4.88 |verified| Now

: Before you start, ensure that you have backed up all your important data. Use an external hard drive or a computer to save your game saves, trophies, and any other data you might need.

If the power cuts during the Flash Memory Patching (Step 2), your PS3 will become a "brick" (unfixable). how to downgrade ps3 firmware 4.89 to 4.88