jailbreak iPhone 4 on 5.0.1 firmware.

Steps to tethered jailbreak your iPhone running on iOS 5.0.1 on iPhone 4, iPad and all A4 devices.

Those who already have tethered jailbreak,

they can apply this patch.

which is corona 5.0.1 untether patch and is available on cydia

or you could straight away using redsn0w_mac_0.9.10b3 for mac

for Windows

first update your iOS device using iTunes for those who don’t depend on software unlock or using Custom made IPSW to preserve the baseband.

1- UPDATE to 5.0.1 

2-run redsn0w, and hit jailbreak

3-folow the steps to jailbreak

4-install cydia

5-Done

hurray