Turn on your Kindle 3
Press ‘Home’
Press ‘Menu’
Scroll Down to ‘Settings’ and click the 5-Way selector

At this point we are now going to press 311 to get access to the menu. If like me you can’t get the text/numeric entry field to appear to get access to the numbers, then you must do the following exactly:

Press ALT+E
Press ALT+Q
Press ALT+Q

A dialog box, see below, will appear telling you that you are about to ‘Switch Wireless Providers’ and that you may lose connection through the process.

Click OK.

It will then scan for the available networks in your area.
Now bear in mind if there is no 3G network in your area it won’t show one!

This takes a minute or two, don’t panic and don’t turn the device off.
The ‘Automatically Switch’ option did not work for me – clearly, as this was what it was set to.

You will see a list of 3G and 2G (GPRS/EDGE) networks listed, Cell C, MTN and Vodacom are the ones I see. The shot below was not exactly what I saw, but you will see something like this:

Choose a 3G network that you want, I chose Vodacom 3G as I think they have the best coverage. Once selected, navigate down to ‘Close’ and then Press Menu and Select Restart.

The Restart will take about 2 minutes, when it comes back up you should be connected to a 3G network. If not try the process again and select another.

Bear in mind that if you now go abroad, you will need to change this to Automatic again for it to roam.