A downgrader that simply works - PSP
Posted by multippt
Noobz and Team C+D has conjured up something that is bound to be an eye-opener or any PSP owner out there: An unbricker that works for all PSPs [a.k.a. Pandora's Battery]. This unbricker has been proven to work, and is released by a reliable source - Noobz themselves, so don’t throw that “broken” PSP yet!
This unbricker, as its name implies, uses a custom battery [a.k.a. Jigkick battery] that is modified from a normal battery through software. It then utilizes a hidden mode in the PSP to install the firmware. This unbricker would install firmware 1.50. The unbricker works on any PSP [works on TA-82, and of course those bricked ones (since you have almost nothing to lose), unless they have been bricked because of corruption to their IDstorage keys (but those kind of bricks are very rare)], meaning it has the ability to downgrade any PSP [include those that are not bricked and are running an official or custom firmware] to firmware 1.50.
Note that you need a PSP that can run homebrew to create the unbricker, as well as the special JigKick battery (or more formally known as the service mode battery). This battery appears to do more than just power your battery - it contains a firmware within itself (hence its cost). Note that you cannot use the JigKick battery for normal usage of the PSP, hence you need a spare battery. The JigKick battery can be restored to a normal one if you want to [provided you back up the firmware of the battery]. The memory stick used as the unbricker needs to be at least 256 mb in size (you can use the memory stick after using it as a unbricker, that is if you want to [you need to format the memory stick to reset the unbricking memory stick to a normal one]).
You can get the unbricker via Noobz. Although the unbricker unbricks the PSP (and one would thus think what’s more to lose with a PSP that’s almost dead), please always, always read the readme file.



