Similar to this thread:
that I posted yesterday I made a automated 3.01 Firmware Installer for Devhook
This will install 3.01 for Devhook, all you have to do is to install Devhook 0.51 and copy the 2 folders from the installer to the GAME directory.
To retrieve the 3.01 FW files you have to download the update and place it in ms0:/eboot.pbp.
The same as you would put the PSAR file when you install the files manually.
There's already the first advantage, to decrypt the FW files you no longer need to extract the PSAR file from the update, the Installer will take care of this :)
It also moves the FW files to the right directory, you no longer have to move them by hand :)
And to finish it off, it installs the F1 folders so you don't get the Blue Screen of Death :)
Then just run Devhook and make sure the selected FW is 3.01 and reboot.
How easy is that :P
In case you're asking this doesn't write to flash in any way.
Has been tested on 1.5 by whazilla and me and will most likely work on 2.71SE too (tested -HD)
This is specifically made for 3.01 Update, but I'm working on a version that will support all Updates ;)
e: forget to add credit where credit is due ;)
This is based on PSAR Dumper by PspPet, Dark_AleX and Team Noobz