Question for you - when you've loaded your firmware from USB (before you've done any modifications to it) do you see the "Install Packages" icons?
Reason i ask, i've editted one of the files on mine and i *think* it would enable these dev icons without the need for JB (following a one off JB in the first place to allow access to dev_flash)
To clarify this:-
Editted: dev_flash\vsh\resource\explore\xmb\category_game.x ml
combined the above with category_game_tool.xml (i.e. including the seg_gamedebug and seg_package_files keys/queries and views (it's all simple xml so easy to do)
The resulting (combined) category_game.xml should result in these icons being available. I've got them showing up & working on my custom firmware, but can't remember if they showed up before I started playing! - just wondering if they show up on a uneditted (stock) firmware run with Jaicrab's loader?
(I'll check myself later, just not got time at the moment)
I could attach the combined file here if allowed (not sure if I should be sharing this file though)
My thought would be to do the following (if/when we have RW access to dev_flash on nand):-
1. JB ps3
2. Install FTP server or equiv
3. Update category_game.xml with the combined one
4. Reboot to normal, non JB but retaining the ability to install packages
Suspect this wouldn't work fully anyway because of the issue with signing them - but maybe it's a step in the right direction?
Note - this may be (probably is) total BS as I've not been feeling great and i'm probably not thinking this through fully!