This summer, i won a competition held by microsoft & nokia... Winners from each uni. received an high-end smartphone...

Knowing that particular "high-end smartphone" had not much user to develop for, as soon as i receive it, i put an ad on a ebay-like site to sell it. Eventually i exchanged it with a tablet which had high developer demand & many many users to develop for , so i could make money by developing for it.

I also email microsoft asking, when something technical goes wrong with the device , can i get it fixed by warranty. Which i never received a respond.

Later on, after a while... I got some feedback from a connection i have from nokia, regarding sale of the device & asking for the warranty..

He says and i quote : " They say, they werent happy that you sold the device and got offended that you asked for warranty. You should not expect anything at all from microsoft or nokia in the future. "

I was like what the frak, they didnt gave it to me as a gift, i won it in a competition as an award , it is my right to do whatever i want.

1. How ethical is that , they dont respond to my email directly?
2. Is it unethical to sell a gadget you won in a competition?
3. Is it unethical to ask for warranty on award?