PoE not working, Switch factory reset not working

[anjo2290]

I was able to get my R510 Access Point to work only by connecting to the 12 vdc as the PoE does not seem to work. I have the IP for my 7150 switch, but I can't seem to login. I tried the default user name and password already. So I tried to factory reset the switch following the protocol of unplugging the switch, pressing the reset button for 15 seconds, plugging the switch back in while still holding the reset button for 30 seconds, but the lights don't seem to flicker to indicate that the reset has begun. I was reading that I need to enter the command lines to enable the PoE, but i don't think i can do that unless i can access the switch via the IP. Please help.