2026-09-29 08:41:10 +02:00
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# Screen lock
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The lock keeps pocket presses from doing anything. It locks the screen only:
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messages still arrive, alarms still ring and the phone app still connects.
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## Locking and unlocking
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**Hold Back and press Enter three times** within 3 seconds; the same locks
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2026-10-02 14:23:15 +02:00
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and unlocks. With a CardKB, **Fn+Esc** does it in one press.
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2026-09-29 08:41:10 +02:00
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**Settings › Display › Lock screen** locks the device whenever the screen
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turns off by itself.
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2026-10-02 14:23:15 +02:00
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The lock screen has the status bar on top and one of two looks, set in
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Settings › Display › **Lock clock**:
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- **Big**: the time in large digits, the date, and how many messages are
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unread.
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- **Compact**: a smaller time with the date beside it, and the Clock page's
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fields as rows below (unread messages too, if no field shows them).
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The key that wakes the screen does nothing else, so a glance shows the data.
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A key pressed on the lit lock screen brings up the unlock hint at the bottom
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for a few seconds; it counts the presses. On e-ink the hint stays up.
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2026-09-29 08:41:10 +02:00
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> [!NOTE]
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> **Wio Tracker L2:** with **Lock screen** on (Settings › Display), waking
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> the screen shows a clock card with **slide to unlock**. Settings › Display
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> › **Tap to wake** decides whether a tap wakes it or only the top button.
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## PIN
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**Settings › Display › Lock PIN** adds a PIN to unlocking, asked also right
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after power-up.
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- Enter on the row opens a number pad. Type the PIN (at least 4 characters),
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confirm, then type it again. The pad's keyboard key switches to letters.
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- A wrong PIN shows how many tries are left; after 5 in a row, entry pauses
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for 30 seconds.
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- Enter on the row again removes the PIN.
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The PIN is stored as a salted hash, never as the PIN itself.
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> [!NOTE]
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> **Wio Tracker L2:** **Settings › Display › Screen PIN**, digits only. With a PIN, the lock card comes up every time the screen wakes, and
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> the SD card isn't offered as a USB drive until it's unlocked.
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## Magnetic cover
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A Hall or reed sensor wired to a free pin (`PIN_HALL_SENSOR`, see
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[Build flags](./developer/build-flags.md)) locks and blanks the screen when a
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magnetic cover closes and unlocks it when it opens (asking for the PIN, if
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one is set).
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