Hi I have just returned from a holiday in Ireland. S4 worked fine until I crossed into Republic.I was then prompted to buy a European data pass which I did but despite this my phone would not connect. I phoned customer services who checked all roaming was switched on, but the only data I could connect to was within hotels while linking to their WIFI. This was a major inconvenience while driving and unable to use Google Maps etc. I did have O2 IRL and METEOR displaying on top left corner and could make calls. Not sure whether the problem could be with the phone itself- tried usual fixes such as battery and sim removal etc. Unfortunately won't be able to check status until abroad again and don't want to replace phone if not the problem?