So far, there are '''no known methods''' of downgrading a retail vita unit, (aside from replacing the motherboard).. Probably the only way is Manufacturing mode or some sort of QA flag. Alternatively you may try to do it by downgrading syscon fw, or if you could fully convert a retail into a testing kit.
So far, there are '''no known methods''' of downgrading a retail vita unit. Probably the only way is Manufacturing mode or some other sort of QA flag set in Syscon. Alternatively you may force lower fw load with a Secure Processor (commonly called "F00D") exploit that happens before prog_rvk.srvk is loaded and that patches it (F00D) to use legacy/factory keyset only.
However, it is possible to downgrade a Testing Kit or Development Kit Vita, as seen in this video:
However, it is possible to downgrade a Testing Kit or Development Kit Vita, as seen in this video:
Revision as of 10:04, 28 June 2018
So far, there are no known methods of downgrading a retail vita unit. Probably the only way is Manufacturing mode or some other sort of QA flag set in Syscon. Alternatively you may force lower fw load with a Secure Processor (commonly called "F00D") exploit that happens before prog_rvk.srvk is loaded and that patches it (F00D) to use legacy/factory keyset only.
However, it is possible to downgrade a Testing Kit or Development Kit Vita, as seen in this video: