iOS 8.4 Beta and T-Mobile Roaming

RainCityMacFan

macrumors 6502a
Original poster
Jun 10, 2007
922
3
NC
This is an extremely niche issue but I just landed in Japan, unable to connect to any network. I called T-Mobile using Wifi calling through the airport's wifi network and they had me send over diagnostics.

Well they informed me that my latest iOS check was failing and that was the cause for me not being able to roam internationally on an iPhone 6.

Has anyone else ever noticed this issue? If not, I suppose this is a PSA for those on a beta OS looking to travel abroad.
 

david91

macrumors regular
Apr 15, 2015
138
9
it happens when your new area does not have sufficient capacity for roaming function as compared to your original network provider.
 

RainCityMacFan

macrumors 6502a
Original poster
Jun 10, 2007
922
3
NC
it happens when your new area does not have sufficient capacity for roaming function as compared to your original network provider.
Not sure about that since T-Mobile states that I should have coverage everywhere in Japan and South Korea. It seems like other people using iPhones end up connecting to SoftBank/NTT the moment they land but I haven't got reception all day despite resetting network settings, manually selecting carriers, etc.
 

moloukhya

macrumors regular
Apr 6, 2007
101
22
This is an extremely niche issue but I just landed in Japan, unable to connect to any network. I called T-Mobile using Wifi calling through the airport's wifi network and they had me send over diagnostics.

Well they informed me that my latest iOS check was failing and that was the cause for me not being able to roam internationally on an iPhone 6.

Has anyone else ever noticed this issue? If not, I suppose this is a PSA for those on a beta OS looking to travel abroad.
I've been on iOS 8.4 beta and have been able to roam internationally on T-Mobile on 2 trips to Canada. The first of which on beta 2, after a few days my phone said it needed to be activated, and I had to connect to wifi to complete the activation process (several times throughout the day, an odd bug). The second trip was on beta 3, and performed as usual.
 

RainCityMacFan

macrumors 6502a
Original poster
Jun 10, 2007
922
3
NC
Yeah I doubled check with T-Mobile this morning and failed to update the thread.

It turns out that they disabled my international roaming for some reason and after turning that back on it worked fine.
 
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