(adsbygoogle = window.adsbygoogle || []).push({}); So I kinda want to go and start modding for GTA V Online.

I'm at the latest PS3 firmware update, is there any way I get a custom firmware or whatever? or do I have to go to 3.55 (If that's even possible).

Things have changed ever since... (CEX/DEX? LoL never heard of that couple years ago).

Any help from a GTA V Online modder would be appreciated.

There is no way for you to get on a CFW unless you downgrade using a E3 Flasher or Progskeet. Your PS3 must also be made on firmware 3.55 or lower from the factory in order for you to be able to downgrade.