Ios system cannot download software at night.

That's the problem of network and version.

1, ios system can't download software, which is often caused by network connection problems, so you need to check the network connection problems. First, call out the control center of iPhone, switch between WiFi and data network in the control center, or try to open a webpage to ensure the smooth network. On the premise, try downloading the App again.

2.ios system can't download the software, or the system version doesn't support it. With the update of iOS system, most software will be upgraded. Of course, the requirements for the system version of the equipment will be improved, so we can see if it is an updated version.