My wife has two specific problems with her iPhone 5S.
1. She never, ever gets 4G, only 3G.
2. Data roaming abroad does not work at all.
I have an iPhone 6S and it works fine, 4G in most of the UK, and data roaming abroad. When we went to France recently my wife got the text to say roaming will only cost her £1.99, and she switched on roaming, but she never got a byte of data even with a decent 3G signal.
I have owned virtually all the iPhones and generally know my way around the settings. I cannot find any reason why the 5S would not switch to 4G. The settings are exactly the same as on my 6S. We have tried "Reset Network Settings".
The 5S did originally connect to 4G when purchased but since switching to a simplicity account at the end of 2 years it has only ever got 3G. Also for some reason I cannot set up the "shared data service", I wanted to share my 20G allowance but the 5S comes up as "not available for data sharing".
Could it be a problem with her account or her SIM??
