Dark_AleX has done it... yet again. His latest incarnation of the M33 Custom Firmwares is 3.80 M33. Of course, it is based off Sony's 3.80... and includes their new Internet radio feature.

Here's the changlog (from README.txt):

- HEN core: user mode can load now signchecked files from flash.
- recovery: flash1 format will create flash1 directories after format.
This could fix some flash1 issues with the previous versions.
- Network update from dark-alex.org page. By default is enabled.
You can turn it off in recovery (when off, network update will download sony updates as usual).
- Nids resolver for various kernel libraries.

Note: Your PSP requires 3.52 M33-3 or higher to start the install.

Note 2: This may damage your PSP if installed incorrectly. Team UE nor Dark_AleX are responsible for any damage caused. You install this at your own risk!

To Download 3.80 M33, CLICK HERE.

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UPDATE:

Dark_AleX has now released the 3.80 M33-2 update. If fixes a few bugs in 3.80 M33.

Download 3.80 M33-2: CLICK HERE (Or use 3.80 M33's Custom Network Update!)