By default, PSPs with custom firmware installed can already run PS1 games in EBOOT format. However, this built-in doesn’t work on all PSX games (since not all PS1 games are officially supported by the PSP) which is why we have the popsloader plugin.

What is the Popsloader plugin?

Popsloader is a PS1 (or PSX) emulator for PSP games that are in EBOOT format.  These games can  be bought from the PSN store or made from discs you legally own (but we know where you’re getting your PSX games right? )

How to install Popsloader on any PSP

Yep. Any PSP, and there’s even a Popsloader version for each of the supported firmware.
Download:

• Popsloader for 5.00 M33 : Download
• Popsloader for 5.03 GEN : Download
• Popsloader for 5.50 GEN : Download

Requirements:

• A PSP with custom firmware installed
  It could be any of the ff: 5.00 M33, 5.03 GEN-A, 5.03 GEN-A, 5.50 GEN-A, 5.50 GEN-B, 5.50 GEN-C, 5.50 GEN-D, 5.50 GEN-D2
• Popsloader files for your specific cfw version.

If you have an unhackable PSP (PSP-3000 or PSP-2000 with TA-088v3):

• You need to have 5.03 GEN-A or 5.03 GEN-B running
• Copy the seplugins folder on the root of your memory stick.
  If you already have an seplugins folder (meaning you already have another plugin installed):
  • Copy the popsloader folder and the popsloader.prx into the seplugins folder
  • Open up the pops.txt file and add the line:

    1.ms0:/seplugins/popsloader.prx 1

• That’s it, you’re ready to play PSX games

If you have an hackable PSP (PSP-1000 or PSP-2000 without TA-088v3):

• You need to have 5.00 M33 or any variant of 5.50 GEN running (5.50 GEN-A,5.50 GEN-B,5.50 GEN-C,5.50 GEN-D@)
• Copy the seplugins folder on the root of your memory stick.
  If you already have an seplugins folder (meaning you already have another plugin installed):
  • Copy the popsloader folder and the popsloader.prx into the seplugins folder
  • Open up the pops.txt file and add the line:

    1.ms0:/seplugins/popsloader.prx 1

• Turn off your PSP
• Turn it on again while holding the R button to enter the recovery menu
• Enable the popsloader plugin
• That’s it, you’re ready to play PSX games