C.S.I. said:
You should remove StartPatch, and install Priiloader 0.4. (And enable the update hacks)
Priiloader gives you the option to press 'reset' at boot time, go in to the priiloader menu, and then launch bootmii ios directly, or launch the HBC, or even launch another .dol, or launch the System Menu.
Priiloader is pretty much mandatory if you dont have bootmii as boot2.
Note: HBC does not lauch Priiloader, Priiloader launches the HBC (if configured that way).
PS: If you screw up and DELETE the System Menu IOS (IOS70 for 4.2), then you are up shit creek with no paddle.
Priiloader will allow you to get you out of most any other problem though.