No 3G connection since upgrading to 4.0

Mr.Crinklewood

I get the icon, but no data connection.

Thanks

j14

Same here. No 3G all day. I came home and reconnected my iPhone to my PC and my iphone was ready to be unlocked. I unlocked it and it has been working fine since about 7pm. Don't know if this was helpful in any way.

whiterebel

There were a good few people complaining about it, and apparently it can be caused by using the backup in iTunes after you restore. If you set it up as a new phone, its ok. It worked for me, but you will wipe the phone and lose your SMS messages.

keane2097

FWIW, o2 had a nationwide 3G problem not related to iOS4 for a lot of yesterday, so people might have been affected by that and forgot the golden rule that correllation != causation.

Another possible problem is that your APN, in Settings>General>Networ>Cellular Data Network, may have gotten wiped by the update. It should be set to "internet".

turnsoutIwas

keane2097 wrote: »

FWIW, o2 had a nationwide 3G problem not related to iOS4 for a lot of yesterday, so people might have been affected by that and forgot the golden rule that correllation != causation.

Another possible problem is that your APN, in Settings>General>Networ>Cellular Data Network, may have gotten wiped by the update. It should be set to "internet".

I had this same problem and fixed it with these settings from a mod post in the o2 forum:

Cellular Data
APN internet
Username iphone
Password password

Visual Voicemail
APN internet
Username iphone
Password password

MMS
APN internet
Username iphone
Password password
MMSC http://mmsc.mms.o2.ie:8002
MMS Proxy 62.40.32.40:8080
MMS Max Message Size 307200
MMS UA Prof URL (blank nothing inputted here)

BBMcQ

i just restarted my phone and it fixed itself....

Newport81

Anyone got the meteor settings fir this pls

whiterebel

smyths wrote: »

Anyone got the meteor settings fir this pls

Have a look at the stickys at the top of the page.

fox007

Lads up dared to ios4 also yesterday jailbroke with red sn0w. Now I can't access my celluar date settings there just not there! I cannot acces the net via edge or 3G. Here is what I mean.

Iv the same problem, 3G ios4, JB & Ultrasn0wed.

Settings are correct. My restore did fail even tho my iphone seemed to have all my things back.

fox007

Looks like were going back to 3.1.2. Ios4 is very buggy I think

fox007

Found a solution works great!! http://www.youtube.com/watch?v=AVbOfDygukI enjoy your 3g again:D

Drakar

Rebooting the phone sorted alot of problems for me. Though podcasts seemed out of sync etc but new ones work fine so hey.