CHENNAI SHOPPERS on Instagram: "🔥 Most iPhone users don’t even know this exists 😳 There’s a hidden button on the back of your iPhone — and it’s not for looks 👀 Just double tap or triple tap on the backside of your phone, and you can make it: ✅ Take a screenshot instantly ✅ Open your favorite app in 1 tap ✅ Turn on flashlight when it’s dark ✅ Lock the phone or even control music 🎵 All you have to do: 🛠 Go to Settings → Accessibility → Touch → Back Tap Then choose your custom shortcut 💡 💬 C