There is still no confirmations that this Update will block the PSJB or its competitors. However I would not be surprised if Sony is not installing Monitoring Software.
Supposely this prevents changing the State of your PS3 from Retail to Debug console. HOWEVER, there is hardware that can be modified to FORCE the PS3 into Debug mode. thee is 3 signal traces that if are in the proper state will trigger your Console into a DEBUG/test console.
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