
I have jailbroken iPhone 4 on iOS 4.1, I got it from carrier called Mobinil (Egyptian carrier) and then I changed to Vodafone Eg, so I was trying to find a way to change APN (i.e. Access Point Name), and finally i caught it, so that I will share this with you, I will show you a step by step guide to do this on your jailbroken iPhone 4 running iOS 4.1STEP 1: Go to Cydia and search for "Supreme Preferences 3.0" and then download it.STEP 2: Now press on "WinterBoard".STEP 3: Press on "Select...