1. Custom Coldboot
2. Kiosk/Shop XMB restrictions have been removed so PlayStation Home/PlayStation Store work fine.
3. Modified to allow installation of retail signed packages
Notes: DO NOT install this unless you have an E3 flasher or Progskeet type device to downgrade your PS3 to 3.55. Unfortunately 3.55 signed PS3 homebrew does not install/run. Also be aware it doesn't load any PlayStation 3 game backups so you will need to have the game disc to play them.
To Unlock the XMB: Hold L1+R1+Select+Square simultaneously. When the security settings icon is selected. It will ask for you to input a code (four digit code). Enter 2464.
PS: PS3Hen if you would like to add XMB Manager that would be great
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just found out that platstation home requires the latest update data to run which doesn't seem to download on kiosk firmware you can download it here and install it via USB: http://b0.ww.np.dl.playstation.net/tppkg/np/NPIA00005/NPIA00005_T29/48743c461087a185/EP9000-NPIA00005_00-HOME000000000001-A0161-V0100-PE.pkg?product=0087
I have my own plans for the kiosk using VSH.self, which I may (depending on whether it works or not) reveal in my 4.10HFW. But I'll can patch your CFW with the XMBM+. Do you want it loaded from USB (which allows for updates), or loaded from the category_game.xml (updating requires re-installation of firmware)?