Using a previously owned Micro-Cell
As many here have noted -- buying a micro cell on eBay is risky. I did it and can't seem to get the original owner to deactivate it so I can use it. I've contacted him via eBay and he said he would do so. So, far, 24 hours later no success on my end. I called AT&T but the rep was not willing to help me. I'm not sure why -- since I have the unit in hand with the SN on the bottom of the unit. Clearly the original owner is not using it -- so, what's the hesitation?
I did as Otto recommended -- I did a reset of the unit -- but, of course that doesn't deactivate it. So, I now have a paper weight!