Shawzy44 : The update may take a bit after the first restart. In the update process, the OS will download the upgrade package and apply it to the factory image upon reboot. That second step may take a while and you'd see the green light like you mentioned.
Try powering up the device and leaving it on for a bit. Let us know if the problem persist after 15 minutes. If it does, there's a couple of additional things we can do, including a simple factory reflash.