diff --git a/src/config/supportedApps.js b/src/config/supportedApps.js
index 7815d5c..ce76d56 100644
--- a/src/config/supportedApps.js
+++ b/src/config/supportedApps.js
@@ -3,7 +3,7 @@
  */
 exports.pickParams = function (appId, systemParams) {
 //	if (appId === 'coc') {
-	const appParams = ['biosSerialNum', 'osId', 'diskSerialNum', 'nicMac'];
+	const appParams = ['biosSerialNum', 'osId', 'mainboardSerialNum', 'diskSerialNum', 'nicMac'];
 	const requiredParams = 2;
 //	}
 
diff --git a/src/lib/licenseUtil.js b/src/lib/licenseUtil.js
index 33ed26d..4247dc5 100644
--- a/src/lib/licenseUtil.js
+++ b/src/lib/licenseUtil.js
@@ -272,7 +272,9 @@ exports.check = async function (db, productId, systemParams, activationId, modul
 
 		let activatedParamObj = {}
 		for (elm of activatedParams) {
-			activatedParamObj[elm.paramId] = elm.paramValue;
+			if (elm.flag & 1) {
+				activatedParamObj[elm.paramId] = elm.paramValue;
+			}
 		}
 
 		return {