Android phone can't install any software

If you have tried all the methods and will not work again, you can try it.Restore your phone to factory settings. The first thing we want to make clear is that the factory reset is not often used, because if the consequences of misoperation is very serious, the factory reset is literally understandable, all settings in the phone will be restored to the factory state, including the software installed on the phone, stored contacts, The information received and Gmail, the bound Gmail account will disappear, after the completion of the boot will be as soon as the first boot to the same need to initialize the settings, binding Gmail account. So this is the function that the phone uses when it encounters an unrecoverable error, so how do I do it?

Android phone can't install any software