Any way to install app to iPhone 4 with Xcode 8 beta?

Question

When trying to run app on my iPhone 4, Xcode 8 beta shows me this message:

This iPhone 4 is running iOS 7.1.2 (11D257), which may not be supported by this version of Xcode.

My app must support iOS 7. I read many answers they say that app build with Xcode 8 beta still can run on iOS 7 devices. So is there a way to install app to iPhone 4 with Xcode 8 beta? Like building the app first, then use a command line to install .app file to the iPhone?

Answer 1

Actually, there is a way. You just need to copy DeviceSupport folder for iOS 7.1 from Xcode 7 to the new one. It's located in:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/7.1

I've tried it and it works.

EDIT: If you don't have the 7.1 files anymore, you can find them here.