Determine the status of your phone and its price. Do not pay to dealers for the evaluation - an adequate price to you there will not be called. Buy a newspaper with a private ads and search ads from your phone. If your phone is in good condition, do not mark more than twenty percent, compared to the market of second-hand phones. In case, if your phone has a shabby condition, make markdown minus twenty or thirty percent.
Place an ad in the newspaper, the social network, the forums. Publish ads anywhere you can publish. If you are running out time and you urgently need money, putting up ads on the approaches. Update your ads every two or three days to read the maximum number of people.
If you can not sell the phone, refer to the dealers. Be prepared for the fact that they will bid up to fifty percent of what you are requesting. That is why if you are not pressed for time, it is necessary to hold the phone and wait until the last customer. Publish ads in social networks, offer the phone in discussion groups devoted to the service provider. Take as much activity and eventually you will find a buyer.