Updating m33 firmware
This is designed to remove custom firmware easily and restore a classic 1.5 firmware back to your psp. Version 1.5 firmware does not work on the 'Slim" or later models and will 'brick' them.
Most people know of the famous pandora battery technique which will unbrick and/or downgrade a psp's firmware. All should not be lost if you have the means to reinstall the custom firmware.
4) So open with Winrar and copy the PSP folder to the root of your memorystick, If it asks you whether it can over write click on “YES”5) IF you have a custom firmware psp make sure you have 1.5 kernel see tutorial memory stick and : i) If you have a 1.5 firmware psp click on ''KXploit Patcher'' icon if you have custom firmware psp skip this step.
After you patched your 1.5 firmware psp follow step ii) ii) click on ''3.52 M33 Creator'' icon and wait , it will take like 2 mins.7) After it creates Press ''X'' to exit it will go back to the PSP's XMB.
Now using the XMB locate the System Update option under Settings.
Hopefully it will work for those of you on other Window versions Step 1Using Chrome browser (it auto translates chinese to English) go to the Aoson Official site and download the latest firmware as at 18th May 2013The file comes in two parts and will need to extracted with a zip software that supports RAR files like Win RARIn my opinion, the latest update has some major lag issues. UFiaan KJx Bkwi TJat JG27l Yq3nl ZXw1NYv-41Nr B0A4 or https://disk.yandex.com/public/?
Congrats you now have a 3.52 M33 but wait now for the update.1) Format your PSP .
( recommended)2) download the update from here.3) Copy the psp folder to the root of the psp4) scroll to the game menu and click on the icon that has written on it .5) press X to patch and you done .
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. If those people are incapable of figuring that much out (how many actually mentioned which PSP model they had in the "WAAH" brigade?
If you have not downloaded the file from the "what you need step", download it and extract it using win rar.(oh yeah.....install winrar first) =P4. you will be prompted with a flash screen (recovery mode ,main menu)9. keep tapping "O" and you will be prompted with the default setup as you did when you first got your psp.12. I've been checking out a few "how-tos" before removing the custom firmware and the reason why there's complaints earlier than this posting because this article doesn't explain that this will only work with the original PSPs or the "PHATS" and that some people would rather have a waaah and blame the poster than try to find out it failed.