How change/repair firmware in Apple iPhone WITHOUT LOSING DATA
When you should use this flash tutorial:
iPhone, iPad, or iPod stuck in Recovery mode or DFU mode.
Device stuck in a bootloop.
RSOD (Red Screen of Death).
This tutorial will present you the method of repairing / updating APPLE iPhone 5S WITHOUT LOOSING DATA. So follow our steps when your phone stuck on the APPLE logo and the device is not responding anymore or when APPLE iPhone 5S stuck in recovery mode. All software problem can be solved by our instructions and you may perform this operation for almost all newest APPLE devices from iPhone 5 to even iPhone X.