Updating psp m33 firmware
What I was not aware of is that the pandora technique in not necessary to downgrade from custom firmware psp's.
So in case there are others like me, I thought I would share my knowledge.
Updates can be obtained in four ways: While system software updates can be used with consoles from any region, Sony recommends only downloading system software updates released for the region corresponding to the system's place of purchase.
System software updates have added various features including a web browser, Adobe Flash Player 6 support, additional codecs for images, audio, and video, Play Station 3 connectivity, as well as patches against several security exploits, vulnerabilities, and execution of homebrew programs.
The following article will guide you through installing the latest (and greatest 😉 ) custom PSP firmware version 3.71 M33 that was produced by no other than Dark_Alex himself.
Not only this guide describes how to get the basic custom functionality, which was already described in great detail, but also talks about how to install the 1.50 kernel patch and the Custom Firmware Extender 1.6.
Back up all your data on your memory stick as you will be formatting it. Select the option that reads Run program at PSP/GAME/RECOVERY/EBOOT. (E.4) Go to Recovery mode (Power off your PSP by holding the power button for 10 seconds. O.4) Official firmware update 5.00 Files to be downloaded and extracted: (a) Custom firmware 3.52 M33 (DL. Revert your kernel to 3.52 (or any kernel above 3.52 like 3.90). (C.5) In your PSP, browse to your Memory Stick and run the program ).If you have OE/M33 firmware equal or greater than 4.01 M33-2 and less than 5.00 M33 please start from Section E. If you have OE/M33 firmware equal or greater than 5.00 M33 and less than 5.00 M33-6, please start from Section F.