Why didn't I flash the message when he came?

If you use a vivo phone, you can see the solution to the flash failure:

1, confirm whether the flash is off or automatic;

2. Confirm whether the battery of the mobile phone is low;

PS: If the flash automatic mode is turned on, the flash will not be turned on in a good light state, and it will not be turned on if the battery of the mobile phone is low.

3. Restart the phone;

4. Enter Settings-Applications and Permissions/More Settings-Application Management-Find the camera-Store and clear the cache and data;

5. Handling by the customer service center. Address of customer service center: Go to the official website/vivo Mall APP-My-Service Network or the official website Webpage of vivo-Slide the bottom-Service Support-Service Network Inquiry-Select provinces and cities to inquire the address of customer service center. It is recommended to call in advance before going to avoid empty running, plan your trip reasonably and travel safely.