If they are slim or phat consoles you can get them downgraded then jailbreak them.

Depends on the model numbers.

If they are slim and/or phat tell me the model number on the back of the consoles and I'll say if they can be downgraded or not.

well i actually have 3 a fat one and 2 slim

one slim is CECH-2103A
second slim is CECH-2503A
fat is CECHG03

The phat and 1 slim can be downgraded. The only one that can't is CECH-2103A.

surprising haha, do i need to install an e3 flasher to downgrade?

oxXxRAP1DZZxXxo wrote surprising haha, do i need to install an e3 flasher to downgrade?

Well the PHAT is a NAND chipped PS3 and can only be downgraded with either a ProgSkeet or a Teensy++ 2.0. BOTH MUST BE SOLDERED TO THE PS3!

And well for the slim it is a hit-and-miss affair. If you have an early One your Golden! Find One that was made well into 2011... Then not so much.
Early versions should be downgradable to OFW3.55. Latter Ones with MinVer OFW3.60 may still be able to run a MFW. Depending on if they still have the compromised metldr, and lvl0 Keys.

My advice is ask someone who downgrades PS3s (there's people who do this on sites like Ebay and even on TTG I think) and they can help you more than me. Get them to downgrade it for you and then you can jailbreak it yourself easy.