How does Apple 6s WeChat set a white message box?

The white message box is because iOS 10 and above systems have been upgraded.

Update iOS on iPhone, iPad or iPod touch.

Learn how to update your iPhone, iPad or iPod touch to the latest iOS version wirelessly or using iTunes.

You can update your iPhone, iPad or iPod touch to the latest iOS version wirelessly. If you don't see the update on your device, you can update it manually using iTunes.

Before updating?

Please use iCloud or iTunes? Back up your device.

Wireless update equipment.

If a message shows that an update is available, tap Install Now. You can also follow these steps:

Plug the device into the power supply and then connect to the Internet via Wi-Fi.

Tap settings > general > software update.

Click Download and Install. If iOS needs more space to complete the update and a message appears asking you to temporarily remove the application, tap Continue or Cancel. Later, iOS will reinstall the removed app. If you click Cancel, please know what to do next.

To update now, click Install. Alternatively, you can click "Later" and choose "Install Tonight" or "Remind me later". If you click "Install Tonight", just plug in your iOS device before going to bed. Your device will automatically update at night.

If you are asked to enter a password, please enter it. If you don't know your password, please know what to do.

If you see an error message or need more space when updating wirelessly

If you see an error message when trying to update the device wirelessly, please know what to do. If you need more space for wireless updates, you can use iTunes to update or manually delete the content on your device. Whether you use iTunes or wireless update, the available space on the updated device is the same.

Some iOS software updates are not available wirelessly. A VPN or proxy connection may prevent the device from communicating with the iOS update server.

Update your device with iTunes

If you can't update your iOS device wirelessly, you can update it manually using iTunes on a computer you trust. If your computer is updating using personal hotspots on iOS devices, please connect your computer to another Wi-Fi or Ethernet network before updating.

Install the latest version of iTunes on your computer.

Connect the device to the computer.

Open iTunes and select your device.

Click Summary, and then click Check for Updates. ?

Click Download and Update.