iPhone Techie

This didn’t work for me. I had a 3G phone prior to getting the iPhone, and when I upgraded they never changed me from the “MediaNet Unlimited” plan to the “iPhone Unlimited” plan. It’s always worked fine, except visual voicemail, which I really could care less about. After upgrading from 3.0.1 to 3.1.2 I started getting the “Could Not Activate Cellular Data Network: You Are Not Subscribed to a Cellular Data Service” error. After trying this and many other methods, unsuccessfully, I went through the steps to downgrade back to 3.0.1. I know I can just hop online and change my data plan, but I’m saving $20/month by staying on the MediaNet. It’s my way of getting back at AT&T for making me pay full price for the iPhone in the first place.

Resetting Network setttings did not work.

But creating a custom AT&T APN did.

Note: Am AT&T Customer. Jailbroken 2g on 3.1.2. Also have “medianet unlimited” not Iphone data plan

Worked like a treat on my iphone 3gs with 3.1.2 firmware. After doing the above o2 text me saying they’ll set up my picture messaging and a min later they did and my phone now works properly

Nice fix! worked on 2g (3.1.2) on AT&T with normal pda data plan (not iphone data)

2 words: THANK YOU!!!!

you are a legend!!! now my 3g is working

my 3g works but it is slower than it was before i jailbreaked. Is this normal for most people?

Didn’t work for me for some strange reason. Any alternatives to this method?

@NJS

I got it working now…..chose wrong carrier lol I suck, you rock!!!!
Thank you so much and keep up the good work!

Hi, I bought an i phone last week and was able to go to the internet just fine. Before two days, the my iphone was not able to connect to wifi on my home network. Why did that happen? NOTE: I do have an AT & T sim card but i do not pay for the extra $30 month plan…
Help please..

tryed this, but within the Custom APN window, the feilds did not populate automatically. They are still blank??
Iv rest networks settings, performed a hardware and software restart and restored it in itunes. Still nothing, I have the latest firmware, V3.1.3… and this problem only started to happen when i updated it.

Any ideas guys??

I’ve given my iPhone 3G to my girlfired, officially unlocked it with my provider, but now I want to DISABLE all 3G and EDGE communication (she has no data contract wit her provider).
I’ve found quite some ways to disable 3G and EDGE data on the iphone, but none of them seem to work with 3.1.3…
Does this solution work, and indeed disable all data communication (except wifi of course…)? Or are there any hardware requirements I should know of?

Thanks guys.

@rav
Problem solved, it works with 3.1.3! For those with the same question:
- iPhone 3G
- Firmware 3.1.3
- Modemfirmware: 05.12.01

@grebbo….thanks!!!

Works on iphone 2g with 3.13. Thanks.

God bless you mate

Great advice! Had the same problem that tech’s from the phone service I was using, could not figure out. Worked on my iphone 3GS with 3.1.2 FW.
Thank’s alot for your geniuses!

Best instructions there is!….i looked for about 2 hours straight trying to find a solution and this is the only thing that worked

I have a jailbroken Iphone 3.1.3 and I tough it wasn’t unlocked… (I don’t want it unlock)

But I have the option Cellular Data Network and in there I can write what APN and Username Password..

Does that mean Im unlock.

I have a 3years contract with bell and I hope I can do something to fix this

Thany you so much. jailbroke and unlocked my phone to avoid new 2 year contract on 2g 1.3.1. data was down the next morning. After searching for 30 min or so I tried your fix, and it worked perfectly. that doesn’t usually happen so easaly. you rock

This is brilliant! But not quite right… if you are on UK-Vodafone the profile should be internet, web, webs (with an s on the end). If you save it as is it doesn’t work. Add the extra s and it works perfectly.

It worked great for me !!! I have a 3gs with 4.0

I got caught in the 9.2 4.0 quagmire of unlocking. I can’t get the network changed no matter how many times I do it and the AON is changed. Not happy at all

should say APN

I’m having the same problem activing the cellular Data Network , so im trying your solution with custom APN , everything is going well untill I choose the carrier and when I click on “create Profile ” it pop a menssage saying: ” Cannot Install Profile, Safari could no install a profile due to an unknown error ” can you give a solution for that, or another option to fix my cellular Data “PLEASE” thanks

I have a 3G I-phone. I unlocked it and I am using T-Mobile. I have a data plan and Edge was working fine till I upgraded and unloced the phone to OS4. Any solutions to get Edge back working with OS4 I am in the U.S.

I am having the same problem as David above. I also have a 3G iPhone, T-mobile with a data plan, and OS4. I get the same message as Rafael when I click on “create profile.” Are there any solutions out there yet? Please help!

could you please add the German carrier O2?! That’ll be great! thanks

Hey will this work if my iphone is not unlocked? I updated to 4.0 on my 3gs and recieve the message..im on AT&T….thanksss

I have an Iphone 3g 5.13.04 on OS4. I continue to get an error as Rafael wheh I click on “Create Profile” Cannot Install Profile, Safari could no install a profile due to an unknown error” I also tried downloading the app via Cydia and that errors out as well. Please help! Is it because I am on OS4?

I have AT&T (on an employee rate plan) with a $10.00 unlimited data plan. I recently upgraded my iPhone 2g to 3.1.3 and unlocked/jailbroke with redsn0w. The phone worked fine for calls, but I got the dreaded “Could Not Activate Cellular Data Network: You Are Not Subscribed to a Cellular Data Service” when trying to use data. This solution worked like a charm. Thank you!

I can’t find the Carrier BASE (BE). Is it possible to go around this? Thanks for the feedback

thanks for ur support

I tried the APN settings, but in Vodafone India for UPE the proxy settings need to be changed to 9401,how do we do that?

I’m also having the same problem as Rafael. Please help!!

Rafael, Denise…….I have a solution!!!!

If you go to email profile instead of create profile and open up the email you receive via wi-fi, it will give you the option to install. Click install, reboot your iphone and hey presto!!

You have not been charged for the information! x

Works on my 3G with 4.0. I use Netcom which is not on the carrier list. I choosed NO Telenor and the option send profile be email, and this works fine. Keep up your good work!

Hi there, iPhone 3GS, 4.0.1 after jailbreaking (jailbreakme.com & unlocking with ultra snow 1.0.1, all works 100% fine, but i was using it in my Car as blue tooth hands free (Kenwood KCA-BT200 equiped with KVT614 DVD receiver) all was woking 100% i.e Phone Book sync, Redail Logs, Incoming call long, out going call logs, all display on the screen of my KVT 614 screen, but after jailbreaking most of the functioning works fine, but have problems like

1. Poor voice quality (the Person i call he hears me with poor audion but i can hear him fairly ok but not 100% as before).
2. Dailed number Log on the iphone itself is ok as normal ( can’t see on my KVT 614 receiver screen).
3. incoming & out going Call logs are also not displayed.

hi, i have an iphone 4 with IOS 4.0 and it didnt work. any advice for me??? i would really be glad for the help!!!! i did everything as told on this tutorial!

I just unlocked my phone and everything is working except the picture messages. I’m not sure that I need to create the custom APN because texting and internet works fine… It’s just the pictures that wont work. Can anyone help?

I can’t add new APN. When trying to follow above I get an error message “Only one APN configuration can be installed at a time.” My current profile does not allow me to delete that profile. PLEASE HELP!!!!!

I can’t add new APN. When trying to follow above I get an error message “Only one APN configuration can be installed at a time.” My current profile does not allow me to delete that profile. PLEASE HELP!!!!!

I am on Mobistar in Belgium w a jailbroken iphone 3g from the U.S. running on OS 4.0.1.

I have the same problem as DK did. Only on APN configuration can be installed at a time.

I had this problem and I did this procedure and it works perfect!! Great Document!!