Apple's mobile phone can't be turned on, and the reason why the Apple logo is always displayed is that the system crashed and needs to be restored.

1. Turn off the phone, press the volume up button, and then press the volume down button.

2. Then press and hold the power button. When the Apple logo appears, release the power button.

3. Continue to press and hold the power button until you enter the iphone recovery mode.

4. Open Niu Xuechang's Apple mobile phone maintenance tool on the computer side and connect the mobile phone with the computer with a data cable. When the computer detects the phone, select Restore.

Apple system repair operation steps are as follows:

1. Connect the iOS device with the Apple mobile phone maintenance tool on the computer side through the data cable.

Start downloading

2. Choose "standard repair" or "deep repair" according to the specific situation.

Note: standard repair will not cause data loss, and deep repair will cause data loss, so it is necessary to make data backup in advance.

Select maintenance type

3. Download the repair firmware. After selecting the repair mode, you need to download the repair firmware according to the prompt.

Download firmware

4. Click Start Repair. After the firmware download is completed, enter the repair process according to the prompt.

Note: The repair process takes about 10 minutes. Please don't disconnect the computer from the mobile phone during this process. After the repair is completed, the repair success interface will pop up according to the prompt.