A new custom firmware has recently surfaced and - guess what? - it isn't from Dark_AleX. Developer Yellow_Rain dropped by the QJ.NET PSP Development forum and informed us that an new custom firmware based on the 3.90 M33 build can now be downloaded and installed into your PlayStation Portable.

This unofficial patch based on the most recent custom firmware released by Dark_AleX, contains a reversed and updated popcorn.prx. Also, a hex-edited vshctrl.prx and GetVersion opcode were both updated in this new build.

The developer has tested and confirmed that CFW 3.93 M33 works for both the classic and Slim PSP. Please take note that it only flashes the changed modules, so make sure that you have CFW 3.90 M33-2 installed on your handheld before running the patch.

To install this new application into your PSP, just copy all the contents of the archive into the ms_root directory of your memory stick. Afterwards, place the 393.PBP file in the root directory of your memory stick. You can then run 3.93 M33 from your XMB after copying all the required files.

To give you a better idea of how to install this new custom firmware into your handheld, here's a video showing off the installation process below. As always, make sure to read the documentation included in the program for more information.