How To Downgrade Ps3 - Firmware 4.89 To 4.88

These cannot be downgraded to 4.88. You must use PS3HEN instead of CFW. Step 1: Check Compatibility with MinVerCheck

The PlayStation 3 modding scene remains active, but Sony’s 4.89 firmware update introduced specific hurdles for those looking to revert to older versions or install Custom Firmware (CFW). If you are looking to downgrade from 4.89 to 4.88, the process is not as simple as clicking "undo." It requires specific hardware compatibility and software exploits. Can You Downgrade Any PS3? No. Before starting, you must identify your console type. Most are downgradeable. how to downgrade ps3 firmware 4.89 to 4.88

Some work, some don’t. You must check the "Date Code." These cannot be downgraded to 4

Place the PS3UPDAT.PUP file on a FAT32 formatted USB drive in the folder path: USB -> PS3 -> UPDATE . If you are looking to downgrade from 4

Since you are on 4.89, you cannot simply install a 4.88 update file over it; the PS3 will block it as an "older version." You must exploit the system memory (Flash) to allow the installation of older or custom software.