Infinity is a tool that enables persistent custom firmware on PSP firmware 6.60 and 6.61 for every model.
To install infinity you must be on either firmware 6.60 or 6.61. If you have an old version of infinity (< 2.0), then you must uninstall it first by using [Chronoswitch 7 or higher].
Download and extract the latest version of infinity. The extracted contents should be:
* `standard` folder containing the tool for non-PSPgo models.
* `pspgo` folder...