Issues in Apple iPhone 6S, 6S Plus
Apple's latest handsets are randomly switching themselves off owners are complainingGetty Images

Another day, another complaint about an iPhone. This time users are complaining of their handsets turning off for no apparent reason. The random shut downs have been reported by a number of owners on forums and social media and there doesn't seem to be a specific reason why.

The problem appears to be mostly affecting the new iPhone 6s and 6s Plus, with a few iPhone 5 complaints arising too whereby handsets are either freezing on a blank screen or turning off altogether even with full battery.

From reports of affected individuals it seems this isn't a hardware issue, rather a software bug from iOS 9.0.1. The shut downs are completely arbitrary with no specific function to blame at this stage. Several users have complained of being late for work because the fault prevented the alarm from going off.

How to fix iPhones that keep turning off

If your iPhone is suffering from the above symptoms and you're stuck on a blank screen, many claim doing a hard reset (holding down the power and home buttons together) is the only way to get the iPhone back to life. Once you're up and running, go into Settings and reset factory settings. Then it is advisable to update your iOS to the latest 9.0.2 that was released last week to fix a number of bugs and glitches.

Since the release of the iPhone 6s and 6s Plus on 25 September and its new iOS 9 operating system there have been numerous software issues reported by users. Teething problems include overheating issues, problems with its Touch ID and a security flaw where anybody could access your photos and contacts even if your phone was locked.

Are you having problems with your new iPhone6s or 6s Plus? Let us know by tweeting us @IBTimesUKTech