In a recent post on the Vodafone forum, the network has warned against people updating to iOS 6.1 due to an issue “which impacts the performance of 3G”.

Customers have been receiving a text which reads:

If you’ve not already downloaded iOS 6.1 for your iPhone 4S, please hold off for the next version while Apple fixes 3G performance issues. Thanks.

So far, no other networks have reported such issues, but credit to Vodafone for advising their customers in advance.

One of the features of iOS 6.1, is the ability to buy cinema tickets using SIRI (provided you live in the US). If you haven’t updated yet, don’t worry you can still buy tickets in the good old conventional way.

Have you experienced any 3G issues with Vodafone (or any other networks) since updating to iOS 6.1? Please let me know in the comments below.