When a passcode is set, a lock icon appears on the chats page. Tap it to lock your Telegram app.
Note: if you forget your passcode, you'll need to reinstall the app. All secret cyour Secret Chats will be lost.
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When 👉 set ⬆ an additional passcode, a 🔒 icon will appear on the 💬 📄. Tap it to 🔒 and 🔓 the app.
Note: if 👉 forget the passcode, you'll need to delete and reinstall the app. All secret 💬 will be lost.
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Jannik,
Dec 19, 2018 at 19:24