Search results: how to downgrade ios 10

the filter upgrade on mail ios 10 application has brought users a lot more convenience in finding the email they need.

like previous ios devices, if your iphone or ipad is running ios 10, it can also turn it into a free wi-fi transmitter for other devices.

some devices when leveling up the ios 10 version have a case of abruptly exiting the application, though not pressing any key. this error may be due to the internal memory being