If you want to downgrade, you need to enter KDFU mode. Please download: For iOS 10+: Futurerestore.zip For iOS versions lower than iOS 10: 9-futurerestore.zip Official iOS firmware: http://www.3u.com/firmwares Step 1 Before you operate on Futurerestore, you need to customize firmware to help you enter Kdfu mode. (1) After you download then unzip the tool , launch wndGui.exe. Note: Not all iOS can be customized, you should check FirmwareBundles in the unzipped file to see if there is iOS you want to cutomized.For example, iOS 6.1.2, 6.1.3, 7.0.4, 7.0.6 and 7.1.2 firmwares for product type iPhone 3,1 can be customized. As follow, click the third button “生成自制固件” to customize firmware. You will need custom firmware to enter KDFU mode, please remember where you save it. Then click "继续" to start the process.On the second box, you are recommended to create a new folder, then just select the folder to save custom firmware. (2) The command window will sta
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