3g connectivity Xperia tab z

[Chrism1976]

Can anyone tell me what the settings should be to get my Xperia Tablet z working on 3g?

I've got the 4g Tab z. and have bought a 3g-sim from Ovivo. Followed the instructions on the Ovivo website (link below) but still no joy. I can send and receive text-messages though, so I have 2g services. 

http://ovivomobile.com/wp-content/uploads/2013/04/OVIVO-Mobile-Android-Tablets-Setup-Guide.pdf

(wifi's working fine btw)

there are a number of preconfigured fields on the Tab, and on the Ovivo instructions it says 'leave as is', or use 'not set' so that's what I've done so far!

If anyone can help me with a complete set of instructions for getting going, that would be great.

[warsklar]

I have the same model and put a 3G and 4G card in, both worked fine.  There is a way to download the carrier settings when you first put in the card.  Did it ask you to do that?