The Android operating system has a built-in Data Saver mode to apply breaks on cellular data usage in the background. It's a handy trick to avoid excessive data charges on your carrier plan, but some may not find it useful. Several carriers offer unlimited monthly data plans, and Android's Data Saver mode may not be useful for their subscribers. Use the steps below to deactivate Data Saver mode on your top-budget Android phone if you are among them.