The Supernote Manta, with its vibrant 10.3-inch e-ink display and customizable firmware, represents a bold departure from the walled-garden ecosystem of Amazon’s Kindle. For readers who crave control over their devices—whether for privacy, aesthetic customization, or sheer technical curiosity—the question of how to quit Kindle on Supernote Manta isn’t just about functionality; it’s a statement. […]