Apple 12 message reminds you how to turn on the flash.

The message reminder flash of Apple 12 is turned on by the "LED flashing reminder" in the auxiliary function. The function of this function is to remind users of unread messages in some specific situations, such as when the mobile phone is silent or the environment is noisy. To turn on this feature, you need to follow the following steps:

1. Unlock your iPhone 12, and then open the settings application.

2. In Settings, locate and click Accessibility.

3. In the "Accessibility" menu, find the "Audio/Video" option, and then click "LED flashing reminder".

Here, you will see a switch button. Click this button to turn on the LED flashing reminder function.

Now, when you have missed calls or unread messages, the flash of your iPhone 12 will start flashing to remind you. It should be noted that this function may consume more battery power. If it is not needed, remember to turn it off in time. At the same time, if you find that the flash flashes too frequently or infrequently, you can also adjust it in the setting of "LED flashing reminder".