Download the firmware 3.40 update and rename it to '340.PBP'. After you rename the 3.40 file, put it inside of the oeupdmaker folder. Note: There should now be 3 files in the oeupdmaker folder. Jul 21, 2007  I have tryed twice to get the 340.PBP from this site and when i run updatemaker 340 it says invalid 340 file. 150.PBP file is 13.575KB and the 340.PBP is 21,533KB i tryed to download it like 3 times no luck im using a Sandisk 2GB Magicgate memory stick (purchased from circuit city retail) so i.

1. A1.50 PSP, if your PSP isn’t 1.50, and is 3.50 or lower, you candowngrade it using the Lumines downgrade. Otherwise, you can downgradeusing Pandora’s Battery.
2. File- 1.50 EBOOT file - http://rapidshare.com/files/64035884/EBOOT_1.50.zip.html
3. File- 3.40 Official SONY Update – http://rapidshare.com/files/64049891/PSP_340_UPDATE.RAR.html
4. File- 3.40 OE Update file- http://rapidshare.com/files/64049099/340_oea.rar.html
5. A PSP battery with more than 75% batter life.

Step 1: (Preparation)

*(optional)It is recommended to back up the files on your Memory Stick and thenformat your memory stick. The option is available under Settings ->system settings on the XMB. (main PSP menu) Also, remove any UMD fromyour PSP before beginning this process.

*First, download the 3 above files, but for now, we are going to work with the 3.40 OE folder:‘340_oea.rar’. Extract this folder to your desktop. Connect your PSP to your computer via USB and enter USB Mode.

*Inside the 3.40 oea folder, there are the following files:

I labeled each of them to express in the tutorial, however, you don’treally even use ‘5’ and ‘6’ in this tutorial, but you can look at themto read about these files.

*Dependingon which firmware you are trying to upgrade from, you will need to putthe ‘1’ and ‘2’ folders in different places. The sims 4 anatomy mod 2. A 1.50 firmware user wouldput the two folders in the ‘GAME’ folder on your PSP under MS/PSP/GAME.A 2.XX or 3.XX(a 3.xx custom firmware lower than 3.40) firmware userwould put the ‘1’ and ‘2’ folders in the ‘GAME150’ folder underMS/PSP/GAME/GAME150.

Wii firmware 4.1e. And so the product server has thrown some error message and I must change the code and test it with the tester team.This was easier than thought:I installed a missed php extension and replaced » $a = funcidx;« by » $a = func; $a = $aidx;« at several places.And now I need some people of the tester team at 13:00 CET to make a final test at the new server. And I will not manually exchange the php installation for a running server (takes medium time, if it works, takes much more time if not).

*Nowwe are messing with the 3.40 Official Sony Update folder. Extract it toyour desktop. Inside, there is a file called ‘340.PBP’. NOTE: If youdownloaded the Sony Official 3.40 Update from somewhere else, insidethe folder, the ‘340.PBP’ file may be named ‘EBOOT.PBP’. So you willhave to rename it to ‘340.PBP’.

*Nowwe are messing with the 1.50 EBOOT folder. Extract it to your desktop.Inside, there is a file called ‘1.50 EBOOT.PBP’, so rename it to‘150.PBP’.

*Onceyou both have the ‘340.PBP’ and the ‘150.PBP’ files ready, copy/pastethem into the ‘2’ folder under MS/PSP/GAME/oeupdmaker if you are at1.50 firmware. If you are at 2.xx or 3.xx, then you put them into theGAME150/oeupdmaker folder. As shown in my picture.

Step 2: (Beginning Process)

*Nowexit out of USB Mode and you are now ready to begin the process. Go tothe Game tab and then Memory Stick. Click on the ‘3.40 OE-A UpdateMaker’, This will create the ‘DATA.DXAR’ file in the ‘2’ folder.

*Enterback into USB Mode once you are redirected to the XMB. Then copy/pastethe ‘3’ and ‘4’ folders into the same folder you put the ‘1’ and ‘2’folders.

*Nowopen the ‘2’ folder and you will see the ‘DATA.DXAR’ file, cut/pastethat file and put it in the ‘4’ folder’. Now exit out of USB Mode.

Step 3: (Upgrading Process)

*Youare now ready to Upgrade to 3.40 OE-A. However, make sure your batteryis charged over 75% and have your AC Adapter Plugged in.

*Nowgo to the game tab in the XMB and then click on Memory Stick. the ‘3.40OE-A Firmware Install’ option should appear. Accept that and follow thedirections on-screen. It will tell you to restart the PSP so hold thepower button thing up until the green light turns off; make a completeshutdown of the PSP system.

Congratulations,you now have a 3.40 OE-A PSP! You can now play NES, GBA, SNES, N64 andSEGA emulators. You can use your PSP as a universal remote, or watchYoutube Videos directly off your PSP, and play backup iso files on yourPSP. 3.40 OE-A has a built in PS1 Emulator, so use my tutorial to makean Eboot file out of your PS1 disc to play it on your PSP.