The iPhone 5 comes with iOS 6 when it leaves the factory, and has gone through iOS 7 and iOS 8. I believe there are many iPhone 5 users who have not yet upgraded to the latest iOS 9. So how to upgrade iPhone5 to iOS9? The following will bring you a very detailed graphic tutorial on upgrading iPhone5 to iOS9.
1. Download the XY Flash Assistant ( click here to download the XY Flash Assistant ), then click "One-click Flash" after successfully connecting the device;
2. Enter the import or download firmware page, which can automatically match the flashable firmware version. Click "Start Flashing" to start downloading the firmware. After the firmware is downloaded, it will automatically enter the flashing process. If the firmware has been downloaded, you can directly "import firmware" to start flashing.
3. Flashing takes about 5 minutes. During the flashing process, please wait patiently and do not disconnect the device or perform other operations;
4. After flashing the phone, it will automatically enter the activation process. After activation, you can install the "essential applications";