Disable data and data roaming cannot stop data transfer

[LUI]

I was traveling cross border last month for 3 days with my xperia LT28h (Android 4.04, Build number 6.1.E.3.7). Before crossing the border, I have uncheck both "Data enabled" and "Data roaming" under "Mobile networks". During the whole trip, I was using GPS and offline map.

The phone bill arrived today. There are a few dozens of roaming data in the size of 1kb to 6kb scattered through the 3 days.

Does anybody have the same experience? And how to really stop the data trainsfer?

[Sam]

Did you send or receive and MMS' during this period of time?

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[LUI]

No, I did not send or receive an MMS.

During the period, I only use the phone to take photos and GPS with pre-loaded offline map.

[KenNg]

I experience the same too.  I am using Z1.

have around 2-6kb usage per day.

data roaming disabled.

[BokeRocky]

The same problem here, a lot of connecitons with all roaming options disabled... any idea? Z1 4.4.2 from Spain, roaming in Brussels