Hello.
I'm belgian with iPhone 5s and Proximus as carrier.
It is true that Apple is blocking the 4G in Belgium for 2 of the providers (Proximus and Base).
It is strictly software.
- All smartphones with technology to connect with 4G are able to in Belgium, except iPhone ... have been told that iPad was able to connect with 4G whatever the provider...
- With the previous IOS, on iPhone 5, it was possible to add 4G support on all network with some simple hack. The open door has been removed with the next software update from Apple
The fact is that in Belgium it is forbidden to lock a device to a provider. Apple wanted to force providers in Belgium with very expensives contracts and only Mobistar went for it. Today, Apple is using his only weapon to punish Belgacom and Base by using their clients (using iPhone) as ostage.
We buy unblocked device with declared technical specification. And we can't use it as promised. This is not right.
But a belgian law is coming in the coming weeks and it will force Apple to respect his client.