Apple has confirmed that an update for the iOS 7 is in the works, aimed at fixing a shut down bug could reported by many iPhone users.
Apple's support forum has been flooded with many complaints
about an iOS 7 bug
that shuts the device off, often when the phone's battery
dips below 30 percent, resulting in a black or white 'screen
The complaints about the bug go back to September so it seems
it persisted through out several iOS 7 updates.
Apple has acknowledged an issue and is promising a fix for it
although it did not clarify when that might occur.