Subject pretty much sums it up, got two used Avaya 9620L phones and one of them will not connect to the call server or even take a firmware upgrade. Everytime it connects to the file server it says "File Obtained Please Wait" then reboots. At first I do remember it actually downloading and attempting to install it but would reboot and do the same thing again but now it won't even do that much. Any suggestions? Is it bricked?