iphone 4 won't connect to internet

I got my iphone4, it's jailbroken and unlocked. Cut down my O2 sim and it works fine except it won't connect to the internet via 3g. My o2 contract is a palm pre one with unlimited data. I have spoken to o2 and they said that it 's fine to use my iphone on the existing contract (as it's my choice which of my handsets to use) but having changed the network APN and MMS APN to those that they have given me still no joy. One other thing that I noticed when changing the settings was that under SETTTINGS-->GENERAL--->NETWORK---> the titles are MOBILE DATA and MOBILE DATA NETWORK and the O2 guy reffered to these as CELLULAR DATA and CELLULAR DATA NETWORK. Am I doing something wrong? (Wifi works fine by the way)

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Originally Posted by spookythang

I got my iphone4, it's jailbroken and unlocked. Cut down my O2 sim and it works fine except it won't connect to the internet via 3g. My o2 contract is a palm pre one with unlimited data. I have spoken to o2 and they said that it 's fine to use my iphone on the existing contract (as it's my choice which of my handsets to use) but having changed the network APN and MMS APN to those that they have given me still no joy. One other thing that I noticed when changing the settings was that under SETTTINGS-->GENERAL--->NETWORK---> the titles are MOBILE DATA and MOBILE DATA NETWORK and the O2 guy reffered to these as CELLULAR DATA and CELLULAR DATA NETWORK. Am I doing something wrong? (Wifi works fine by the way)

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when you plug in itunes, doesn't it update your provider settings. I bought an off the shelf phone, transfered my details to a micro sim and can connect fine via vodafone (they don't even know i'm using an iphone 4).

Have avoided connecting it to itunes as I'd have to jailbreak it again afterwards and I don't want it updating to 4.0.2 - I could have been given duff info on that score though.

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Originally Posted by spookythang

Have avoided connecting it to itunes as I'd have to jailbreak it again afterwards and I don't want it updating to 4.0.2 - I could have been given duff info on that score though.

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I think you can connect it to itunes but not update it (as its asks you if you want to). I still have mine on 4.0.1 (not jailbroken) and can use itunes fine.

You don't have to update if you connect to iTunes. It gives you the choice to update. Be careful tho. I would connect and let iTunes prompt you install carrier settings

go in to settings then mobile data setting . Where it says mobile data idata.02.co.uk change it to mobile.02.co.uk. Then turn your phone off and back on thats what i had to do with my old 3gs that wasnt on a iphone contract hope this helps

tommy:cool2:

Cheers guys, Tommy - that's the settings O2 gave me, tried connecting to itunes but no option for carrier update (phone shows carrier v.7.0) so still no luck.:(

Is there not some setting that you can have sent to your phone from the 02 website? I know t-mobile send you the settings via SMS. You could try ringing and ask them to send the settings rather than you manually inputting. That might do the trick.

i'm on O2 monthly contract and my iPhone4 settings are as below:

(Go into Settings/General/Network/Cellular Data Network)

APN - mobile.o2.co.uk

Visual Voicemail - idata.o2.co.uk

APN - wap.o2.co.uk

All of them above have a username & password of 'vertigo' and 'password' respectively.

Also, ensure you have Cellular Data switch set to ON (Settings/General/Network).

Once you've done the above you must REBOOT.

Thanks for all replies so far. Nothing has worked though.Tried o2 again and only suggestion they could come up with was a full reset and restore, which would mean a non JB phone and poss locked back to original carrier. Getting well narked now.:pissed:

If you got you SHSH backed up then I would give full restore a go. Also do you know someone else with an 02 simcard you could try? I guess youre a bit limited to your iphone 4 mates if you got any, cos of the feckin mini simcards.