Apple has released a revised version of its new iOS operating system to fix the bugs that have had some iPhone 6 users unable to use their phones properly.

iOS 8.0.2 came on Friday after Apple withdrew a software update following widely reported issues that left some unable to use their phone.

After the first update, some phones were unable to connect to cellular networks and the fingerprint reader, a security feature, didn't work.

The iOS 8 operating system was released just last week, a few days before the release of the iPhone 6.

Apple has sold 10 million iPhone 6's since last Friday when the phone was officially released to the public.