diff --git a/b2g/installer/flash.bat b/b2g/installer/flash.bat
new file mode 100755
index 000000000000..9b5093677de8
--- /dev/null
+++ b/b2g/installer/flash.bat
@@ -0,0 +1,73 @@
+@ECHO OFF
+
+REM read config file
+setlocal ENABLEDELAYEDEXPANSION
+set loop=0
+for /F "tokens=*" %%A in (.config) do (
+    SET /A loop=!loop! + 1
+    set %%A
+)
+
+set DEVICE_FOUND=0
+
+REM nexus has device instead of product name
+IF [%PRODUCT_NAME%]==[] (
+ set PRODUCT_NAME=%DEVICE%
+)
+
+REM if nexus 4 assume you are in fastboot mode, can't seem to find drivers 
+IF [%DEVICE%]==[mako] (
+call :flash
+)
+
+REM push device from adb to fastboot mode
+win_adb kill-server
+win_adb devices
+win_adb get-state > devicestate.txt
+set /p DEVICE_STATE= < devicestate.txt
+
+IF NOT "%DEVICE_STATE%"=="device" (
+   ECHO Please check :
+   ECHO 1. to make sure that only one device is connected to the computer
+   ECHO 2. the device is turned on with the screen showing
+   ECHO 3. the device is set to debugging via USB : ADB Only or ADB and Devtools
+   ECHO 4. the device drivers are installed on the computer.
+   Del devicestate.txt
+   PAUSE
+   EXIT /b
+)
+
+Del devicestate.txt
+win_adb reboot bootloader
+
+TIMEOUT 5
+
+:flash
+win_fastboot devices 2> fastboot_state.txt
+set /p FASTBOOT_STATE= < fastboot_state.txt
+
+IF NOT [%FASTBOOT_STATE%]==[] (
+   ECHO Please check :
+   ECHO 1. to make sure that only one device is connected to the computer
+   ECHO 2. the device is turned on with an indication that the device is in fastboot mode
+   ECHO 3. the fastboot drivers are installed on the computer.
+   Del fastboot_state.txt
+   PAUSE
+   EXIT /b
+)
+
+Del fastboot_state.txt
+
+ECHO "Flashing build. If nothing mentions that it flashed anything and it looks stuck, make sure you have the drivers installed."
+win_fastboot flash boot out/target/product/%PRODUCT_NAME%/boot.img
+win_fastboot flash system out/target/product/%PRODUCT_NAME%/system.img
+win_fastboot flash persist out/target/product/%PRODUCT_NAME%/persist.img
+win_fastboot flash recovery out/target/product/%PRODUCT_NAME%/recovery.img
+win_fastboot flash cache out/target/product/%PRODUCT_NAME%/cache.img
+win_fastboot flash userdata out/target/product/%PRODUCT_NAME%/userdata.img
+
+ECHO "Done..."
+
+win_fastboot reboot
+echo "Just close the windows as you wish."
+TIMEOUT 5