When your ios crashes or the iphone behaves abnormally after updating to the latest ios (for example ios 11.3 which was just released), you might need to get the iphone firmware restored using itunes or even downgrade the ios by iphone firmware restore.. Restoring iphone firmware is a good way to get out of certain software issues that your device may be experiencing. it can fix almost all ios issues including iphone being stuck in recovery mode, being stuck on apple logo, simply displaying a black screen and so on.. Here’s a step-by-step guide on how to restore to an unsigned ios firmware like ios 11.1.2 which can be jailbroken. this guide has been written by albanus alain, one of our readers, who has successfully restored his iphone 5s to ios 11.1.2 and then back to ios 11.0.3..
An ipsw or iphone software file is a firmware update for the iphone. these files are typically never seen by the end user as apple delivers them automatically to the iphone using itunes.. Rarely, firmware files are required to restore a malfunctioning iphone, ipad, or ipod touch that is basically bricked, but still functional. this is somewhat rare, but if an ios update is interrupted it can happen, which usually requires a device be placed into dfu mode and restored manually with firmware. typically a normal itunes based restore is sufficient, which is why that is fairly rare.. On iphone 8 and later: press and quickly release the volume up button. press and quickly release the volume down button. then, press and hold the side button until you see the connect to itunes screen. on an iphone 7 or iphone 7 plus: press and hold the side and volume down buttons at the same time..
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