Apple’s iOS 6.1 operating system  has been confirmed to be affecting 3G performance on the iPhone 4S.

Vodafone pointed out the issue on its website and in texts to  customers, recommending that those who have not already upgraded should avoid  doing so for now.


“We’re aware of an issue caused by Apple iPhone 4S handsets that have been  upgraded to iOS 6.1 which impacts performance on 3G,” reads a statement on the Vodafone  website.

“Some customers may occasionally experience difficulty in  connecting to the network to make or receive calls or texts or to connect to the  internet. Apple is working on a solution to their software issue. These  connection problems are intermittent.

“While Apple’s investigations  continue, we would recommend that anyone who has not yet installed iOS 6.1 on  their iPhone 4S should delay doing so until Apple has confirmed that their  problem has been fixed.”