Connect your PSP to your computer using a USB cable.
Copy the 3.01/3.02 Eboot to the root of your memory stick. Make sure it is named EBOOT.PBP (If you used the QJ one from this guide it needs to be re-named.)
Open DH0510000.rar, double click DH0510000, double click MS_ROOT. Extract all of the files to the root of your memory stick. When prompted, click "Yes to all". Note: If you have custom firmware, and you 1.50 kernel homebrew folder is GAME150, you'll have to move the devhook launcher from the GAME folder to the GAME150 folder.
If you're installing 3.02, open DH0510000-302_screen.rar. Open the folder DH0510000, open the folder MS_ROOT. Extract the contents to the root of your memory stick, saying yes to overwrite files.
Open the 301_DH-FW-INSTALLER.rar/DH FW 302 Installer .rar file. Open the 301_DH-FW-INSTALLER folder (3.01 installer only)
Copy the contents to X:\PSP\GAME (or the GAME150 folder if you have a custom firmware configured like that, read the CF readme for details
Exit USB mode. Navigate to the Game tab, and launch "3.01 DH FW Installer"/"3.02 DH FW Installer"
Press 'X' when prompted. Your PSP will restart when it's done.
Navigate to the Game tab, launch "DEVHOOK0.51 launcher BETA"
Scroll to Firmware, press 'O', and ensure that 3.01/3.02 is selected, and press 'O'.
Spoiler for Screenshot:
If all goes well, your PSP should boot into 3.01/3.02!
Spoiler for Method 2: The normal way (no longer updated, not recommended):
If you haven't already, install WinRar and PSP Brew.
Connect your PSP to yor PC using a USB cable.
Open up PSARDumper_300.zip Extract both folders to X:\PSP\GAME or X:\PSP\GAME150 (where X is your PSP's drive letter), depending on how your firmware is setup. If you don't know, read the readme's.
Extract the 2.82/3.01 Eboot WinZip file to anywhere on your hard drive.
Using PSP Brew, open the 2.82/3.01 Update Eboot (either double click it, or open through PSP Brew)
Extract the DATA.PSAR by clicking it, and then clicking extract file.
Spoiler for Screenshot:
Extract it to the root of your Memory Stick.
Spoiler for Screenshot:
Disable USB Mode, scroll right to the GAME tab, scroll down to the memory stick icon.
Launch PSAR Dumper V2B.
Spoiler for Screenshot:
When prompted, press 'X'. Wait for the program to finish executing. Your PSP will automatically reboot when it's done.
Now, enable USB again.
Open DH0510000.rar, double click DH0510000, double click MS_ROOT. Extract all of the files to the root of your memory stick. When prompted, click "Yes to all". Note: If you have custom firmware, and you 1.50 kernel homebrew folder is GAME150, you'll have to move the devhook launcher from the GAME folder to the GAME150 folder.
Delete the file DATA.PSAR, you won't need that anymore.
Spoiler for Screenshot:
Note: There should be an "fbm" folder. These are old screenshots, sorry.
Right click the folder F0, select Cut.
Double click on dh, then double click 282/301. Right click in the blank white space, select paste. Click "Yes to all" when prompted.
Spoiler for Screenshot:
Optionally, you can delete the following folders in the PSP\GAME folder: psar_dump2, psar_dump2%.
Disable USB mode.
Scroll to the GAME tab, and launch DEVHOOK0.51.BETA launcher.
Spoiler for Screenshot:
Scroll to Flash Install, and press 'O'.
If you had already flashed a different firmware with devhook to flash, remove it, by scrolling to remove.
Now, press 'O' on "Install configfile to flash1:". A screen will come up, if you accept the terms, hold 'O' for a little more than a second.
Wait just a bit, then at the very bottom OR the very top of you screen it will say "press any key to continue".
Scroll to Firmware, press 'O', and ensure that 2.82/3.01 is selected, and press 'O'.
Spoiler for Screenshot:
If all goes well, your PSP should boot into 2.82/3.01!
Navigate to X:\dh\[firmware installed]\f1\registry\ (where X is your PSP drive, and [firmware installed] is the firmware you have DH setup to use.
Open up dh05installer-reg.zip.
Extract all files to the registry folder, click yes to all when prompted
You should be good to go
I always have to put in my settings
Exit using the home button (details below), and you should be set
Can I overclock in devhook?
Yes, either from the launcher, or the VSHEX mod menu.
I boot devhook, and all I get is a black screen or a blue your settings or corrupted screen
Refollow the guide. It has just been updated, and make sure that you follow close attention to step 18-21, as those changed, and are CRUCIAL. It should work perfectly after that.
Sound doesn't work / UMD's don't load
This is partially my fault. The first revision of this guide didn't mention replacing the audio.prx with the decrypted one. Please refollow the guide, it's fixed now
The internet browser doesn't work
If you have correctly installed devhook .51, it should
Will SOCOM ftb2 work online?
Yes
Can I install devhook .46 and devhook .51 on the same memory stick?
Yes. However, you can't install devhook .46 and devhook .50.
The return to 1.50 mod doesn't work
It seems that it isn't supported with this version, sorry. However, read the next question.
How do I return to the firmware I'm emulating from?
In the XMB, press 'HOME'.
Scroll down to Escape Devhook, press 'O'
Now, left and right are switched, meaning that right selects Yes, and left selects No. This must be a glitch, because the functions are reversed. (Meaning that Yes won't quit, but No will)
Scroll to No, press 'O', and you will arrive at the firmware you started devhook from.
Booster - For making devhook
tommydanger - For making the easy installer
PSPet - For making PSAR Extractor
The Noobz Team - For advancing PSAR Extractor to 3.0 and hosting
Dark_AleX - For making the custom firmware, and because he's having a rough time, and for working on PSAR Extractor
Stefano Rusello - For making PSP Brew
andysmith - For making button fix
mikie - For hex editing 3.01 auto installer to make in 3.02 compatible
Twelve - My human spellcheck, thanks
Paulk501 - Black screen fix suggestion
hausome and Maxi_Jac'- A big thanks, suggested the flash1 rom thing, should fix most problems
Porkape - X-Flash removal finds
Ranger613 - Caught a useless step
daggerer - For in-devhook screenshots
Gieese - Readme translations
Ninkul - 1.50
linkinpark9812 - 1.50
mrbagrat - 2.71 SE-B and 2.71 SE-B''
pspuser129 - 2.71 SE-B''
Hardrive - 271 SE-C
Man007 - Giving links to HEN C and D
Man007 - For writing the first guide, sorry I stepped on your toes
QJ.net - For hosting the files and these forums
Anybody else that I forgot - I'm sorry