Help! Cannot get out of safe mode

[lovetypething]

I'm helping a friend out trying to get his phone out of safe mode. I had the same problem and uninstall the last app and it worked for me. For him I did the same, but it is not working and it says:

MobileSubstrate/did not/cause this problem: it has protected you from it.

Quite don't understand this, if someone could help explain that or help to get out of safe mode that would be great!

[Will01]

MobileSubstrate forces you phone into safe mode when the springboard crashs by disabling all apps which support extensions. Hence it prevents unresponsiveness and such.

Anyways, if he's on 4.0+ take a look through his apps and delete anything that is not compatible. Check the compatibility list on here for help with supported/unsupported.