If you're using a phone that we don't have in our device support, we may still be able to help you set it up. Your phone will need to be unlocked so you can use it with a Three SIM. Find out more about unlocking your phone.
If you're having issues connecting to the internet, you might just need to update your phone's settings. The way that you check your settings may be different depending on your phone's software version and manufacturer.
If you're using a phone with an Android operating system, choose your manufacturer from the list below to check your internet settings:
If you're using a BlackBerry that you didn't get from us, you can find out about using the internet on your BlackBerry here.
If you still can't find what you need, you can find support from your manufacturer here: