Do I need to back up the contacts, text messages and other information saved in my mobile phone before swiping my card?

Yes, because the user data and software data stored in the mobile phone will be deleted before the phone is swiped, it can be backed up by software, which can be restored after the phone is swiped, and can be backed up by 360 mobile assistants.

Download a 360 mobile assistant /index.html, and install it after downloading. Go to Settings-Developer Options-USB Debugging Hook on the mobile phone, connect the computer with the data cable, and the assistant will automatically install the driver for the mobile phone.

If the usb debugging button pops up on the phone at this time, check the box to select Allow. At this time, the computer will install an assistant mobile phone version for my mobile phone, and it can be backed up at this time.

Click Backup on the interface of 360 mobile assistant, select the file you want to back up, connect according to the above method after brushing, and then restore the backup file.