Use APKPure App
Get BOOT old version APK for Android
BOOT application is used with Rooted Devices
Your device need to be Rooted to make use of this application. It is designed to work within smaller screen sizes. This means you will be able to use it even in a smartwatch. You will be able to:
Fast Restart your device,
Shutdown,
Start in Download Mode and
Start device in Recovery mode.
**This application will also check for Root access.