Since the 3.42 release of lightning around the world to take legal measures we can see that Sony’s determination to escape the fight against crack. The advent of 3.55 is also in order to “enhance the system security” – no doubt, is directed at the degradation of the recent advent of electronic dog had just come.
Now many forums has confirmed that, in the 3.55 system, players can also enter the engineering mode by downgrading the dog, but the system no longer responds to the first lv2diag.self, that player can not enter the engineering mode system version downgrade. But the heart of Sony’s good the system can respond to the second lv2diag.self file card that will not let you get out in the engineering mode.
For now, existing tools can not downgrade 3.55, so this time Sony has had the upper hand. However, the market has not 3.55 machine, so adhere to the path of crack players can still be considered to start PS3.


