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DevilsBreathProtect

K42

LG · catalog updated 2026-10-21

All supported devices
Brand
LG
Kind
Android phone · released 2020-09 · last update Android 11
Model codes
LM-K420

Announced in September 2020; India from January 2021. Ships with Android 10; Android 11 followed in Q4 2021. In Brazil the K42 was sold as the K52 (Wikipedia). Google Play also lists LM-K420 as K35. No built-in gesture or key opens a chosen app.

Gestures on the K42

No gesture specific to this model is known. We only list what the manufacturer or reliable sources document.

Plus what the app offers on every Android phone: In-app button, Widget, Quick Settings tile, Shake, Volume keys, Voice phrase. How to set those up

Recommended presets

  • Shake ×3Sends a signal

    Three sharp shakes within 2.5 s: hard to do by accident, easy to do without looking.

    Shake ×3, 0.15–1 s apart · whole gesture within 2.5 s

  • Widget ×2Sends a signal

    Two taps on the home-screen widget within 3 s; a single accidental tap does nothing.

    Widget ×2, 0.1–3 s apart · whole gesture within 3 s

Gestures are set up in the phone settings as shown, then combined into a trigger recipe in the app, where practice mode shows step by step whether a gesture would trigger.