I'm trying to create a lightning component that updates a boolean field on the case object, I've been playing around with it for a few days and can't work it out. I'm getting an error : Uncaught Action failed: c:UnEscalate$controller$unescalate [FALSE is not defined]
Using the following to trying and achieve the desired outcome. 

Component

<aura:component controller="UnescalateController" implements="flexipage:availableForAllPageTypes,flexipage:availableForRecordHome,flexipage:availableForRecordHome,force:hasRecordId" access="global" >
	  <aura:at>tribute name="CaseObj" type="Case" default="{ 'sobjectType' : 'case'}"/>
      <lightning:button label="Unescalate" onclick="{! c.unescalate}"/>
</aura:component

JS Controller

({
  unescalate : function(component, event, helper) {
      
      var caseObject = component.get("v.CaseObj");
        caseObject.Admin_Escalation__c = FALSE;
       
       
      var action = component.get("c.updateAdmin_Escalation__c");
          action.setParams({
            obj: caseObject,
            oId : component.get("v.recordId")  
        });
      // set call back 
        action.setCallback(this, function(response) {
            
            var state = response.getState();
            if (state === "SUCCESS") {
                alert('This case has been unescalated!');
                $A.get('e.force:refreshView').fire();
            }
             else if (state === "INCOMPLETE") {
                alert("From server: " + response.getReturnValue());
            } else if (state === "ERROR") {
                var errors = response.getError();
                if (errors) {
                    if (errors[0] && errors[0].message) {
                        console.log("Error message: " + errors[0].message);
                    }
                } else {
                    console.log("Unknown error");
                }
            }
        });
        // enqueue the action
        $A.enqueueAction(action);
   }
})

Apex Controller
 

public class UnescalateController {
 @AuraEnabled 
    public static void updateStatus(case obj,String oId){
        system.debug('obj' + obj);
        case cc = obj;
        cc.Id = oId;
        update cc;
    }
}