The IPhone 7 system does not push messages, and there is no little red dot with icons. What to do?

There are several situations in which iphone7 does not push upgrade messages. One is that the mobile phone version is 1.0X system, and there are many upgraded versions across it, so the system ignores pushing. The other is that the mobile phone is equipped with feedback to prevent the upgrade description file from being deleted (most of these are third-party upgrade prevention software such as AISI or ITOOLS), and it is best not to connect with WIFI to upgrade.

If you want to upgrade the IOS 10.3.3 system, you can download itune on the computer, then connect the mobile phone to the computer, and at the same time, press and hold the power-on key and the volume down key of the mobile phone to restore the data line mode. After downloading the firmware of the computer 10.3.3 system, you can click Update, and the phone can be used normally after the firmware update is completed. -Apple Repair Expert-Quick Repair with Right Hand-Answer for you.