There are a few ways to disable auto backup on Android devices. One way is to go into the settings of your device and select “Backup and security.” Under “Backup,” you will see a list of options. You can choose to have your device back up automatically every day, weekly, or monthly. If you choose monthly, your device will back up on the first of the month. If you choose daily, your device will back up every day. If you choose weekly, your device will back up once a week. If you choose never, your device will not backup at all.