Install/Update your dashlaunch to v3.11
do this by moving the "Installer" folder to your choice drive and running the default.xex and update as it prompts.
reboot console and launch the program again.
Open the options section "Configurator" and scroll down to "updserv" and enable it, this is all we need to do on the console. ..Leave dashlaunch running right there (don't save config)
Or if you prefer,, you can use the standalone server I have attached below, do this by running the xex file.
Now we move to the PC and extract the file pack from the download above, open the folder and find the file "UpdateMyConsole.bat" and click it, your updater will open , and less than a minute later your update will be done.
Note: This is 100% working. All you have to do is to check wether you see xbox 360 under networks in my computer
Thief on xbox jtag needs mandatory update dashboard 16547