The screen is not bright when the mobile phone sends text messages. What's going on here?

The screen lights up automatically when the mobile phone sends a text message, and there are no relevant settings to control on the mobile phone. If your mobile phone doesn't work, I suggest you:

1. Settings-Application Manager-All Information-Attempt to clear data

2. Restart the phone

3. Update the mobile phone system software.

4. Back up important data (contacts, photos, memos, etc.). ) and restore the factory settings.

If the problem still exists, it is recommended that you send your mobile phone to the nearest after-sales service center for testing.