PSP Emulation upto Firmware 2.71 !
DevHook v0.44 now emulates v2.71 FirmWare allowing 2.71 image support. Some NOTES on this release are as follows:

- If you can't get 2.71 working with 0.44 (your PSP won't reboot into 2.71, it only switches off) then on the DevHook menu go to OTHER and change the PRELOAD ADDR to 89000000 and it should work then.

- If you boot DevHook with 222 MHz and then in the XMB using select + mode change "overclock" to 333 MHz (but not in the DevHook menu) then booting at 333 MHz shouldn't freeze anymore allowing you to run iSOs overclocked.

- If you are NOT getting the 0.44 FULL version, then don't forget to replace dh/271/flash1/registry/system.dreg and system.ireg with the ones from a lower FW install. You'll need the following decrypted Flash1 files: reboot.bin, system.ireg, and system.dreg. Place reboot.bin in ms0:\dh\271\reboot.bin

Note: Make SURE to delete dh/271/flash1/registry/init.dat if there is one... if not, then you can simply ignore this note.

Download DevHook 0.44 with 2.71 Firmware Support