iphone brush Tip "failed to restore iphone, unknown error" How to do

1, please update the latest version of itunes, and then redo the recovery operation. This may be due to a corrupted or low version of the itunes file. This situation is directly to the official website to download the latest itunes reinstall can be.

2, choose to enter the DFU recovery mode to restore. Brief operation Essentials: Will the iphone shuts down, then simultaneously presses the switch machine key and the home key, sees the white Apple logo to release the shutdown key, note that the home key must hold down. When you open itunes, you will be prompted for recovery mode, hold down the SHIFT key on the keyboard, click the "Restore" button, and select the firmware you want to use to recover. Please refer to the resources in this article for specific instructions.

3, please clean the USB interface of the computer, including USB keyboard and mouse, and then restart the system, and then use the main USB port to connect your iphone to restore operation.

4, replace a computer to restore. This situation is mainly due to the system may be a non-genuine or compact version of the system, causing the system a necessary component missing, but the program failed to run. Try another one.