How To Determine the Lowest Compatible PS3 Firmware for Downgrading
1-10-15: Initial release.
In my latest PS3 video, I will show you how to determine what is the lowest firmware that your PS3 can accept. Why is this important?
If you want to do CFW (custom firmware) and you upgraded your PS3 to the latest official firmware (i.e. 4.66) you may or may not be able to downgrade it if the original firmware loaded on the system is 3.56 or higher.
If it turns out that your PS3 model was originally with built firmware 3.55 or lower, then that means your PS3 can be downgraded through the use of a hardware flasher of some sort.
See the video tutorial for more details, and check out the youtube page for the download link to MinVerCheck.rar file.