I have just had my phone unlocked which was on 3, now I'm on o2. The calls and the texts are working okay but the internet doesn't seem to be working? It's a Samsung S5600. Any help would be much appreciated, thank you.
I forgot to say, I've already tried the text ACTIVE to 2020 but thanks anyway, and it's also a 3G phone & it's a 3G sim, but next to the signal thing it's a blue square and only says G where it used to be red and said 3G.
Doesn't matter i figured it out now, had to go on my browser first, then "Settings" then "o2 WAP", it was still on the 3 one, thankyou anyways!