If you want to install custom firmware on your PSP, read this guide on how to install custom firmware After installing custom firmware, you can update your PSP to the latest stable version, PSP 5.03 GEN-B Custom Firmware

How to Install Custom Firmware 5.03 GEN-B for ChickHEN

What do I get with PSP 5.03 GEN-B Custom firmware?

  • All features of 5.03 GEN-A are available.
  • Compatibility with games requiring firmware 5.51 with no additional handling (no more Decrpyting PSP games)
  • Compatible with the PSP-3000 and PSP-2000 v3 official firmware 5.03.
  • Play backups of games REQUIRE PSP firmware above 5.03, including 6.xx Play backups of games REQUIRE PSP firmware above 5.03, including 6.xx
  • Reading UMD that REQUIRE firmware above 5.03, including 6.xx Playing UMD REQUIRE firmware above 5.03, including 6.xx
  • Reading UMD / ISO games protected against the custom firmware. Playing UMD / ISO games protected against the custom firmware.
  • Play PS1 games
  • GEN VSH MENU available (SELECT)
  • Recovery in VSH Recovery available in VSH available
  • Reading Reading Homebrews

Fixes for Custom Firmware 5.03 GEN-B:

  • Evangelion Anti CFW patch Fix
  • Fix Wlan TKIP in game loop : pes 2009 , fifa , motorstorm , GTA cw ect….
  • Fix Video Output With 5.5X and 6.X Games like GTA Chinatowns War
  • Fixed recovery menu with make Pandora and make battery normal
  • removed splash screen http://www.pspgen.com but you have another spash screen in red color for let you know if the decrypter work .

So how do I install PSP 5.03 GEN-B Custom firmware?

Read this guide on how to install PSP 5.03 GEN-B Custom firmware on your PSP.

[via How to install Custom Firmware on your PSP]