I recently bought an unlocked i phone 3G. When I put in my BT Mobile SIM I get a message "Could not activate cellular data network".
However I also have a Tesco SIM, and when I put that SIm in the iphone then 3G works perfectly.
Please help, I would love to use 3G with BT Mobile on my iphone.
Solved! Go to Solution.
Because BT use Vodafone's network, the Vodafone data network settings get loaded from the SIM. You need to manually enter BT's setup:
Settings->General->Network->Cellular Data Network:
MMS Proxy: 212.182.137.012:8799
brilliant, that seems to have solved it.
The 3G signal seems to alternate between "3g" and "o". Do u know what the difference is please ?
"o" means GPRS
"E" means EDGE
When the 3G signal is marginal, it will switch from "3G" to either "E" or "o" to keep a data connection alive.
I've tried entering all these details, yet my iphone is still showing that it's connected to vodafone and not bt. The iphone was previously on a contract with vodafone but has now been unlocked but i can't seem to get it to work with my bt sim......step by step help of setting up from scratch would very much appreciated please.....
thanks for that advice on bt sim in an i phone unlocked from vodaphone, amazing i came here for advice having been given the run around by bt's tech team, who really did not have a clue, answers ranged from "you need a device driver" to i phone is not compatible with the bt mobile network???
Hi Malcolm This worked wonderful on iPhone 4 now I have just got iPad 1 3G and would like to set up for data download using btmobile if possible
I did get the VPN info field but did npt find field for MMS input
I am sure you will have answer to this one
so I set all the settings as you rightly instruct below and works perfectly until I step out the front door (away from my wi-fi) when it all immediately reverts to wap.voafone.co.uk etc and no matter how I overtype the correct btmobile settings, it simply reverts it back to vodafone. I was away from home an hour ago and tried to no avail. Now im home again, the settings have automatically reverted to btmobile without the need for me to do anything!!!
What am I doing wrong?