LithiumPSP

Dark_Alex has done it again he's updated his last two releases: the CFW 3.71 M33 and 1.50 Kernel Add-On. Both of them have been upgraded to a version two, with various bug fixes, additional features, and other modifications.

Here's the changelog for M33-2:

There was a bug that caused corruption when writing files of more than 32256 bytes using usb flash. The bug has been corrected, and now the implementation is as reliable as it was when it was based on 1.50 kernel. (tested with a full restauration of a dump)
Psp Slim: a functionality to let the charge of battery when connecting a usb cable has been added. This feature is based on Noobz plugin code. By default is not enabled, you can enable it in recovery. Note that the charge of battery may be delayed some seconds since the moment you plug the cable.
After installing this update, program at /PSP/GAME/UPDATE will always be executed on 3.71 kernel, despite configuration.
VSHMenu: vshmenu will not be executed when onscreen keyboard is active, to avoid the lost of the select button function in the keyboard. An option to reset the psp has been added.
VSH plugins are not longer executed anymore in recovery mode, that was the cause of pseudo-bricks.
The 1.50 Kernel Add-on has only one thing in its changelog: "When returning from sleep mode, 3.71 ipl was executed causing an immediate crash. Fixed."

Please take a look at the readme documents in the separate download below to check out more details. Installation instructions and noted bugs have been included as well in the readme.

To download 3.71 M33-2 click [Here]
To download 1.50 Kernel Add-on v2 click [Here]