Originally Posted by
linglingfool
It will come pre-activated (a follow-up email asking for your passport info will likely be forthcoming), so there's no need to visit Spain to start using it. If you have a GSM phone (so non-Sprint/Verizon), you can turn data roaming off and try the SIM at home to make sure it works before you even get on the plane. Dial *111# <send> to check the balance.
One thing to note is that you'll want to make sure that the APN settings are being properly read by your phone, otherwise you'll have to enter them manually to ensure you have internet access upon arrival.
Great thank you. Yes. I received the email asking for passport info. I'm so glad to have found this option.
Thanks for the info about APN. I tried google, but it's still not clear to me. I have the iPhone 6, and I don't see the APN settings anywhere. I understand that there's an app available at unlockit.co.nz, but I'm reluctant to download. My iPhone 6 is unlocked. I was hoping to pop in the SIM and it will work seamlessly.