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DevilsBreathProtect

X400 / X401

LG · catalog updated 2026-10-21

All supported devices
Brand
LG
Kind
Android phone · released 2017-02 · last update Android 7
Model codes
LGM-K121K, LGM-K121L, LGM-K121S, LGM-X401L, LGM-X401S, LGM-X301K, LGM-X301L, LGM-X301S

Korean version of the K10 (2017): X400 from 13 February 2017, the cut-down X401 (LGM-X401L/S) from 7 November 2017. Google Play also lists LGM-X301K/L/S under X400. Ships with Android 7.0; no later update is reported. No built-in gesture or key opens a chosen app.

The app can't run on the X400 / X401

Its last official update is Android 7, and the app needs Android 10 or later.

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.