Hey guys, I have a weird problem... I bought an iPhone 3GS off a guy on craigslist and it works great, no complaints. But every few minutes or so I get the alert saying that I "Cannot activate cellular data network - You are not subscribed to a cellular data service", and it's really annoying because it lights up my iPhone all the time and kills my battery. It's also really annoying - it comes up whenever I'm typing a message or playing a game; literally when I do ANYTHING on my phone. I do not have a data plan, but I have used 'unlockit.co.nz' to install a Fake APN to my iPhone to block data. Rogers has also given me a data block. This has been going on ever since I bought the phone, I thought installing a Fake APN would stop it but I guess not. I can't really restore since I have a lot of stuff on this iPhone already.. but if that's the only option then I will be forced to. I used to have an unlocked Fido 3G (about 2 months ago) without data and it never gave me this alert, do you think it has something to do with my 3GS being locked to Rogers? This phone is a jailbroken iPhone 3GS (model MC143C) running version 3.1.3 (7E18) and locked to the "Rogers 5.0" network. If it helps the modem firmware is 05.12.01. **If there are no real solutions, I still have 2 months left on my warranty. Would Apple fix it or give me a new one if I un-jailbreak it? Thanks in advance for your help!