Keep in mind that the E3 flasher will downgrade any compatible PS3 it doesnt the firmware that its on because the E3 flasher is Hardware downgrading.

Check THIS thread if you want to use Minvercheck. here is a tutorial about jailbreaking PS3 fat and PS3 Slims.Check with minverchck PUP, this way you are 100% sure.Check THIS page on the PS3 Devwiki or use this graphic to determine if your console is suited and what type of flash memory the console uses.Check if your ps3 is compatible with custom firmware (Console must have a minimum version of 3.56 or below.).Easy enough if you read twice and sort it out. It's all there, read and act accordingly. There is a guide in the ps3 forums, pinned in plain sight so everyone can see. if you had searched a little here, you should have made it out loud and clear. While if the PS3 toolset goes offline you can't host it yourself as it's not open sourced. No, only exploitable firmwares are 4.82 and 4.84. Though this flash writer is open source and you can host it yourself at any time, it's a nice backup to have. UPDATE: The PS3 toolset is back online with support up to 4.90 ( ), i would recommend to use that instead. UPDATE: Mr.Mario also made a good youtube tutorial for this, if you prefer videotutorials you can watch his video:

Hello Guys, in this guide i will be covering how to install custom firmware on your compatible ps3 system in 2023, this is a noob friendly guide and my guide is to make it as foolproof as possible.