How to activate or deactivate emergency alerts on TCL devices

TCL 40 XL TCL 40 XL
TCL Tab 11 TCL Tab 11
TCL NxtPaper 11 TCL NxtPaper 11
TCL 406 TCL 406
TCL NxtPaper 12 Pro TCL NxtPaper 12 Pro
TCL 403 TCL 403
TCL 408 TCL 408
TCL 40 SE TCL 40 SE
TCL 405 TCL 405
TCL 40R TCL 40R
TCL 30 XL TCL 30 XL
TCL Tab10 Lite TCL Tab10 Lite
TCL Tab10 Neo TCL Tab10 Neo
TCL T PRO TCL T PRO
TCL L10 Lite TCL L10 Lite
TCL L10+ TCL L10+
TCL L7+ TCL L7+
TCL L7 TCL L7
TCL L9S TCL L9S
TCL A30 TCL A30