Not using my new sim in a fone and im going to donegal and need to know how to set it up

RobertM_2740111 Assuming that you have activated it already, then you will need to get to the device settings and change the APN to mob.asm.net - details should be in the manual for the device.

You will be limited to 12Gb data while Roaming in the EU and also a maximum of 60 days.

Some research on Smarty website & forum will show you a lot of info on this as it has been covered many times before.