Open the Gemini app or go to gemini.google.com
Sign in with your Google account
Make sure your device is connected to the internet
If prompted, accept the terms and permissions
Select or enable Gemini from the app or website
On Android, open the Google app or Gemini app and follow the setup prompt
On iPhone, use the Gemini app if available in your region
If Gemini is not available, check your region and account eligibility
Update the app if you do not see Gemini options
Restart the app or device if Gemini does not turn on