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I can not set screen lock on my m5 xperia.
When i select the screen lock option the setting app stops.
I need help.
Hi @Jano21, sorry to hear about this.
Have you had the chance to try the suggestion that @uliwooly gave you about trying to restart your device in safe mode?
If that does not help, you can try resetting the Settings application in your device and to do that, go to Settings > Apps > 3 dots > Show system > Settings > Storage > Clear data and set a new screen lock again.
Keep us posted!