Adding to the woes of Apple's already-troubled software update, a security flaw in iOS 6.1 allows anyone to bypass an iPhone's lock screen and access anyone's iDevice.

With this iOS 6.1 trick, anyone can bypass your iPhone's lock screen, access your data, check your voicemail, view or modify contacts and look through your photos and more, The Verge reports. The method was explained in a You Tube video posted by a user by the name videosdebarraquito. The method involves "making (and immediately cancelling) an emergency call and holding down the power button twice. We followed the steps and managed to access the phone app on two UK iPhone 5s running iOS 6.1," the report says.

A similar bug was noted with iOS 4.1 and was fixed by the iOS 4.2 update.

This is the latest in the series of bugs that came along with the iOS 6.1 software update. iPhone users have been battling bad 3G connectivity and fast battery drain ever since the software upgrade. As iOS users, especially iPhone 4S owners, were unable to receive or make calls, send or get texts or connect to the Internet after the upgrade, a couple of mobile carriers, including Vodafone UK and 3 Austria warned its members not to upgrade to iOS 6.1.

These issues were followed by another bug that apparently affects the Microsoft Exchange E-mail Servers. The software update has been causing iOS devices to continuously loop when synchronizing a recurring calendar meeting invitation on Microsoft Exchange. Many enterprises came out with warning notes for its customers against an iOS 6.1 update.

Although Apple successfully fixed some issues related to iPhone 4s with its iOS 6.1.1 update, the Exchange bug remained unsolved. Later Microsoft published an official support document detailing the workarounds for the issue that involved blocking and throttling iOS users. It was also reported that iPhone 5 users were affected with performance issues including 3G connectivity; however, the Apple update did not include any solutions for iPhone 5 owners.

Meanwhile, an Apple statement says the company has identified a fix and will make it available in an upcoming software update. "In the meantime, you can avoid this bug by not responding to an exception to a recurring event on your iOS device," the statement says.

Check out the iOS 6.1 trick in the video below.