The iphone 5s (gsm) device was released on 09/14/2013. it has 62 firmwares released for it. download current and previous versions of apple's ios firmware and receive push notifications when new firmwares are released. Below you can find the direct links to the iphone firmware files for every released firmware version. please note that if you use safari you must disable the auto unzip feature. it may be easier. The software update will then be applied to your iphone. when new versions are available, you can update the software on your apple iphone 5s for extra features and better performance. here, we show you how to update your phone using itunes v12.5.1.21..
