How to restore Apple 6Plus mobile phone after deleting its own application?

Press and hold the power button of the iPhone6SPlus phone, and the shutdown slider appears on the screen.

Slide it down first, then connect the phone to the computer and open the iTunes software. If iTunes software is not installed, please go to Apple official website to download and install it.

Please press and hold the power button to turn it on, and then the Apple logo will appear on the screen. Do not release the power button.

Then press and hold the home button on the home screen until the screen turns black.

When the screen is black, please release the power button, and don't release the Home button of the home screen until iTunes on the computer side detects that an iPhone is in recovery mode.

Next, in the iTunes window, you can see a button to restore the iPhone. If you click this button directly, it will connect to Apple's update server and check the latest system firmware.

If you manually downloaded the firmware on the Internet to restore it, you can also choose to restore it. If it is a Mac computer, please press the Option key first; If it is a Windows system, please hold down the Shift key, and then click the Restore iPhone button to select the firmware to be restored.

If you want to exit the recovery mode of the current iPhone, press and hold the power +Home key at the same time until the white Apple logo icon appears on the screen, and then release it.