how to unjailbreak

[angrytroll74]

i recently did the jailbreak on my phone and seems that today i am having problem with my data connection. i still have time to exchange phone ,but need to know how to get back to stock. Can anyone help with this?

[veladem]

... Do a restore from iTunes... seeing as most people who JB usually make a backup... If not get the official ipsw for your iPhone...

[angrytroll74]

Thanks, I reset network settings and so far so good.I have a week or so to exchange so if something goes wrong i will restore.. Thanks again.