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DevilsBreathProtect

K10 (2017) / Harmony

LG · catalog updated 2026-10-21

All supported devices
Brand
LG
Kind
Android phone · released 2017-02 · last update Android 8
Model codes
LG-M250…, LG-M257…

Ships with Android 7.0; the Indian models got Android 8.1 in 2018. LG-M257 is the Snapdragon version sold by Cricket as the Harmony; LG-M250 covers the regional MediaTek versions (K10 Novo in Brazil). The Korean version is the X400. No built-in gesture or key opens a chosen app.

The app can't run on the K10 (2017) / Harmony

Its last official update is Android 8, 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.