diff --git a/README.md b/README.md
index 422e795..4df8564 100644
--- a/README.md
+++ b/README.md
@@ -168,6 +168,7 @@ Command Examples:
 * [XDA [GUIDE] Build / Mod AVD Kernel Android 10 / 11 rootAVD [Magisk] [USB passthrough Linux] [Google Play Store API]](https://forum.xda-developers.com/t/guide-build-mod-avd-kernel-android10-x86_64-29-root-magisk-usb-passthrough-linux.4212719)
 * [Inject Android Hardware USB HOST Permissions](https://github.com/newbit1/usbhostpermissons)
 * [XDA [SCRIPT] rootAVD - root your Android Studio Virtual Device emulator with Magisk [Android 11][Linux][Darwin/MacOS][WIN][Google Play Store APIs]](https://forum.xda-developers.com/t/script-rootavd-root-your-android-studio-virtual-device-emulator-with-magisk-android-11-linux-darwin-macos-win-google-play-store-apis.4218123)
+* [rootCROS - A Script to root your Google Chrome OS installed on a non Chromebook Device](https://github.com/newbit1/rootCROS)
 
 ### XDA [GUIDE] How to [Build|Mod|Update] a custom AVD Kernel and its Modules
 * [[GUIDE][Build|Mod|Update][kernel-ranchu][goldfish][5.4][5.10][GKI][ramdisk.img][modules][rootAVD][Android 11(R) 12(S)][AVD][Google Play Store API]](https://forum.xda-developers.com/t/guide-build-mod-update-kernel-ranchu-goldfish-5-4-5-10-gki-ramdisk-img-modules-rootavd-android-11-r-12-s-avd-google-play-store-api.4220697)
@@ -192,13 +193,16 @@ Command Examples:
 * [[Mar. 2021] - Android 10 (Q) API 29 Google Apis Play Store x86_64 r08 Windows Production Build](https://dl.google.com/android/repository/sys-img/google_apis_playstore/x86_64-29_r08-windows.zip)
 
 ### Change Logs
-#### [June 2021]
-* [General] - Android 12 (S) r05
+#### [July 2021]
+* [rootAVD.bat] - Changed TestADB
+* [General] - Added rootCROS Project to Links
 
 <details>
 <summary>Archive</summary>
 
 ### Change Logs
+#### [June 2021]
+* [General] - Android 12 (S) r05
 #### [May 2021]
 * [General] - Updated to Magisk App v23.0
 * [rootAVD.sh] - Added "AddRCscripts" Argument that **install all custom *.rc scripts, placed in the rootAVD folder, into ramdisk.img/overlay.d/sbin**
diff --git a/rootAVD.bat b/rootAVD.bat
index 1baa908..733afae 100644
--- a/rootAVD.bat
+++ b/rootAVD.bat
@@ -227,39 +227,50 @@ exit /B 0
 	set ADB_EX=""
 
 	echo [-] Test if ADB SHELL is working
-	if exist %HOME%%ADB_DIR_W% (
-        set ADB_DIR=%ADB_DIR_W%
-    ) else (
-    	echo [^^!] ADB not found, please install platform-tools and add it to your %%PATH%%
-        call :_Exit 2> nul
-    )
-
-	for /f "delims=" %%i in ('dir %HOME%%ADB_DIR%adb.exe /s /b /a-d') do (
-		set ADB_EX=%%i
-	)
-
-	IF %ADB_EX% == "" (
-		echo [^^!] ADB binary not found in %%LOCALAPPDATA%%\%ADB_DIR%
-		call :_Exit 2> nul
-	)
-
+	
 	set ADBWORKS=
 	adb shell -n echo true > tmpFile 2>&1
 	set /P ADBWORKS=<tmpFile
 	del tmpFile
 
-	echo.%ADBWORKS%| FIND /I "recognized">Nul && (
-  		echo [^^!] ADB is not in your Path, try to
-  		echo set PATH=%%LOCALAPPDATA%%\Android\Sdk\platform-tools;%%PATH%%
-  		call :_Exit 2> nul
-	)
-
 	if "%ADBWORKS%" == "true" (
 		echo [-] ADB connectoin possible
 	) else (
-		echo [*] no ADB connection possible
-		call :_Exit 2> nul
-	)
+		
+		echo.%ADBWORKS%| FIND /I "offline">Nul && (
+  			echo [^^!] ADB device is offline
+  			echo [*] no ADB connection possible
+  			call :_Exit 2> nul
+		)
+		
+		echo.%ADBWORKS%| FIND /I "unauthorized">Nul && (
+  			echo [^^!] ADB device is unauthorized
+  			echo [*] no ADB connection possible
+  			call :_Exit 2> nul
+		)
+		
+		echo.%ADBWORKS%| FIND /I "recognized">Nul && (
+			if exist %HOME%%ADB_DIR_W% (
+				set ADB_DIR=%ADB_DIR_W%
+			) else (
+				echo [^^!] ADB not found, please install platform-tools and add it to your %%PATH%%
+				call :_Exit 2> nul
+			)
+			
+			for /f "delims=" %%i in ('dir %HOME%%ADB_DIR%adb.exe /s /b /a-d') do (
+				set ADB_EX=%%i
+			)
+
+			if %ADB_EX% == "" (
+				echo [^^!] ADB binary not found in %%LOCALAPPDATA%%\%ADB_DIR%
+				call :_Exit 2> nul
+			)
+
+  			echo [^^!] ADB is not in your Path, try to
+  			echo set PATH=%%LOCALAPPDATA%%\Android\Sdk\platform-tools;%%PATH%%
+  			call :_Exit 2> nul
+		)	
+	)	
 	ENDLOCAL
 exit /B 0