3.03 Downgrader / HEN is Here!

Well it seems as if Sony always cracks under pressure or at least its developers do because nothing has stopped the PSP homebrew community and their desire to do whatever they wish with he PSP they spent their hard earned bucks on!

Introducing the PSP Firmware 3.03 Downgrader and HEN enabler which will allow you to downgrade your PSP up to firmware 3.03 or run homebrew safely from your PSP with firmware 3.03 already on it! Either way this is a HUGE leap for the fine fellows who work on these projects! So rejoice all of you who've left comments on Evil PSP asking if there's a way to downgrade a PSP running firmware 3.03 because today is your day to start breathing again!

3.03 Downgrader instructions

Requirements
------------
In order to downgrade a 3.03 PSP you will need the following:
- Original GTA LCS (any region), which should have the 2.00 update on the disc.
- 3.03 Downgrader (available below)
- 1.50 Update (available below)
- 3.03 Update if you are on firmware 2.81 to 3.02 (available below)

WARNING, ANY DOWNGRADER HAS A CHANCE OF BRICKING A PSP. WHEN A
PSP IS BRICKED YOU WILL NOT BE ABLE TO USE IT ANYMORE. WE HAVE
DONE A LOT TO TRY AND MINIMIZE THE RISK, BUT THERE IS ALWAYS
SOME LEVEL OF RISK WHICH YOU MUST ACCEPT IF YOU WANT TO
DOWNGRADE


Instructions
------------
Here are the steps to downgrade any 3.03 PSP to 1.50

1 - If you have a 3.03 PSP skip to step 6

2 - Download 3.03 update: (available below)

3 - Unzip and place the file in <pspdrive>:/PSP/GAME/UPDATE

4 - On the PSP, run the 3.03 update from the memory stick under the Game menu.

5 - Delete <pspdrive>:/PSP/GAME/UPDATE

6 - Copy the contents of the folder MS_ROOT from the 3.03 downgrader ZIP to the memory stick

7 - Unzip the 1.50 update to a temporary folder. Rename the EBOOT.PBP to UPDATE.PBP and copy it to <pspdrive>:/PSP/GAME/UPDATE/ . DO NOT
OVERWRITE PSP/GAME/UPDATE/EBOOT.PBP!

8 - Load GTA LCS

9 - It should get to loading savegame, then the screen will clear to black
and fill with a light blue colour, then the PSP will reset itself (if
this does not happen see section below)

10 - Check that HEN is running by going to system settings, then to
"System Information" and it should show up as system version
303 HEN

11 - If it is showing up as HEN then go to the memory stick and
run the x.yz update

12 - If you have an unpatched TA-082 or higher motherboard, you will be
prompted to allow the downgrader to patch your motherboard so it
can be safely downgraded. The downgrader will not let you proceed
without patching, if your motherboard requires it.

13 - Before the downgrader does anything to your PSP it will ask
for you to agree to what it is doing, if you no longer want to
continue press the Right Shoulder Button (R-TRIGGER).

14 - Once you have agreed to start the downgrade do not unplug the
PSP, or try and restart it

15 - Once finished the PSP will ask you to press X, and reset itself

16 - If it comes up saying that the settings are corrupt, press x
to continue, this will mean you will need to re-enter the
settings for network connections into your PSP, otherwise go to
step 18

17 - Load the included NetConfigBackup application in your PSP, and select to
restore, this will take the backup that was done of the network config
that was done automatically during the downgrade.

18 - All done now :-) Hopefully you now have a 1.50 PSP. Enjoy it responsibly.

read more in the included Readme.txt

Homebrew Enabler for 3.03 FINAL by Noobz / Dark_AleX

Instructions

- Copy all contents inside MS_ROOT to the root of your memory stick.
- Load GTA
- If the PSP freezes try again
- When you run the program, you'll see a coloured screen that can be one of two colors:
* Red: the files couldn't be written to the flash (it happens a few times). Just keep trying.
* Pale Blue: The files were written successfully, and HEN is active. After that, the xmb will
be rebooted. Now you can run the homebrew in format prepared for 2.71. (see details below).
Note that a pale blue screen will appear again every time the PSP reboots with HEN active.

- As mentioned before, the patch will remain resident in memory, and even entering sleep mode
won't delete it. Only a hardware reset will remove the program from memory.

- When you do a hardware reset, you'll have to run GTA again.
This time there will just be the pale blue screen and xmb reboot, since this time there is
no need to write to the flash.

Note: Ensure that you leave the PSP/HEN_303 and PSP/SAVEDATA directories that are used for HEN
as some of the files are used each time you enter HEN.
Note2: Once the program is loaded, it is independent of the memory stick contents. So you can
freely swap memory sticks.

Read more in the included Readme.txt