Use APKPure App
Get SideloadVR DeviceID old version APK for Android
Affiche votre appareil id Note4 (nécessaire pour le développement GearVR)
Handy tool for GearVR developers
SideloadVR DeviceID displays your device id, which is required for signature file creation.
You can create a signature file and learn more about how to use it here:
https://developer.oculus.com/tools/debug/
It does _not_ need root. This is not an official app.