I read some articles saying that there are Real PS3 break and Fake PS3 break on market, and teaching people how to judge whether it's real or fake.
In fact, they are not fake, they are just different builds. The PS Groove source code was leaked onto the internet and since then people have figured out how to run the jailbreak from various phones, TI-84 calculators, etc. These "fake" PS3 Break work the same way the "official" jailbreak works but typically they cost half the price.
But it's true that some PS3 Break CAN BE UPGRADED with no problems, while some PS3 break can't.
So where to buy a PS3 break that can be UPGRADED? Maybe can consider some professional sellers,such as ps3breakr4.com, etc.