The reason people go it buy second hand phones is that if they cannot afford to buy expensive phones they preffer buying second hand mobile for less expensive price. What should you look for when you want to buy a second hand phone? 1) check the outer look of the phone, see if there is any physical damages, any cracks or too many skreches on the phone. 2) open the back cover and check for batter if it has any liquid which is coroding the phone, basically check for the sticker under the battery if its turned red or pink. 3) check the camera quality by clicks some shots. 4) do ask for the least price possible and check for the date when the phone was bought.