Android 21 is a mobile operating system that has been in development by Google for some time now. It is a major update to the Android platform that brings many new features and improvements. One of the main challenges that Android 21 will face is defeating it. There are many ways to defeat Android 21, but the most effective way may be through security measures and proper use of your device. To defeat Android 21, you will need to take several steps:

  1. Use a security solution to protect your device from unauthorized access. This can include using a password or two-factor authentication, installing software such as antivirus and firewalls, and using a secure browser such as Chrome or Firefox.
  2. Use an appropriate app for your needs. If you are not comfortable using an app from the Google Play Store, consider finding an app that meets your specific needs and interests. Some good options include weather apps, mapping apps, and social media apps.
  3. Use common sense when using the phone. Do not try to do too much at once - focus on one task at a time and let the phone do its job properly - rather than trying to do too much at once and causing problems down the road.