How to brush ipcc

First press the win key R key to enter run, enter cmd and press Enter.

In the dialog box, first enter your iTunes software installation path (right-click the desktop iTunes icon and properties to directly copy the path)

Then copy -setPrefInt carrier-testing 1

This parameter goes to the end of the path just copied (what should be noted here is -setPrefInt carrier-testing 1. Add a space in front of this parameter)

Then press Enter and the computer will automatically open the iTunes software.

Related recommendations: "FAQ"

Step 2: Connect the phone to the computer and open the iTunes software.

Then: click shift update at the same time.

In the file extension on the lower right side of the dialog box, select the iphone/ipad operator configuration file ipcc and then select the operator file you downloaded to flash it.

Select the corresponding IPCC file to flash. Note: To flash IPCC, you must have a higher version and a lower version, otherwise you cannot flash.

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