Ok one problem...

[murgero1]

I need help, if upgrade from 3.40 oe-a to 3.51 m33 will it brick my psp or will it have minor bugs or even nothing goes wrong.
and right now a already ran the update maker now and now i have he flasher does it ask for settings or what??? do i need curtain files? thnx in advanced!

[splodger15]

To be honest I would stay at 3.40OE as it is much cleaner just wait for a better custom firmware but M33 is not one of them

[mike_jmg]

No brick just bugs:

- Don't use system_plugin_fg.rco (battery icon) makes xmb freeze
- some wlan homebrew doesn't work, but there is a patch
- There is a new patch for NO-UMD compatibility, but it didn't work well for me
- Someone said that if you use the wlan patch online umd gaming works weird (so backup the original flash files)

advantages:

having higher firmware
recovery in black, white & red, looks better if you ask me
Every feature from 3.40 OE works in this one, (well except for the above mentioned things)
so, it's your choice

edit: i forgot, there is already 1MB of free space on flash0 for customization