Apple released iOS 6.1 on January 28 without seeing a gold master (GM) version to developers prior to its launch, which is very unlike Apple if you follow their iOS release schedule. Sure – iOS 6 was downloaded by an alleged record number of iOS users, but Apple’s haste may have worked against them this time as a major mobile carrier is advising its users against updating to iOS 6.1.

Vodafone, which is a U.K.-based mobile carrier, is warning its customers who have an iPhone 4S from upgrading their device to iOS 6.1 saying in a statement, “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.”

U.S.-based carriers have yet to speak out against iOS 6.1, but a number of users have taken to the Apple’s forumsin order to sound off on the latest OS’ battery drain problem that seem to affect all version of the iPhone, not just the iPhone 4S as Vodafone warned.

Filed in Apple >Cellphones. Read more about , , and .