iphone does not on reboot

[dtmejia]

hi,
updated my jailbroken 3gs phone from 3.1.2 to 4.1 using i tunes and now it does not reboot , it just has the apple logo and does not go beyond that . so I try irecovery but every time i try to type the commands i get the following error


Last login: Wed Nov 10 15:06:09 on ttys000
dms:~ davidmejia$ cd desktop
dms:desktop davidmejia$ ./iRecovery -s
dyld: Library not loaded: /usr/local/lib/libusb-0.1.4.dylib
Referenced from: /Users/davidmejia/Desktop/./iRecovery
Reason: image not found
Trace/BPT trap
dms:desktop davidmejia$



Please help me !!!!!!!!!!

 

[Applejuiced]

Is it also unlocked or just JB?
You can just plug it to itunes and restore it if you dont care about an unlock.
Then JB it again.