Yet again I'm abroad and I can't access networks. Yes roaming is enabled. Yes the APN settings are correct. My phone is dual SIM. It occasionally works overseas. Manual search, all networks forbidden. I'm currently in Guernsey. What is going on? Expect me to be requesting my PAC Code next week. Had enough.
Found this on another thread don't know if this helps there is a app/icon on your app screen for virgin sim, select it and then roaming, it will give you auto manual, select manual then you will get international national select international. Return to your settings, mobile networks, select auto and hopefully it will connect to network.