The iphone 5s (gsm) device was released on 09/14/2013. it has 62 firmwares released for it.. If you want to restore or upgrade your iphone 5s, you will need download iphone 5s firmware, ipsw files which are actually the firmware. From the iphone wiki. jump to: navigation, search. a firmware is an ipsw file that contains everything needed to run the core operating system, ios..
Find out which ios firmware file to download based on your iphone 5s: a1433: appropriate ios firmware file or ios software update for your iphone from. Firmware keys/9.x. from the iphone wiki. jump to: navigation, search. iphone 5s iphone 6 iphone 6 plus iphone 6s iphone 6s plus iphone se; iphone5,1 iphone5,2. Where to find the direct links to the iphone firmware files for every released firmware version..