Guys when you goes to purchase an second hand phone always remember following things. I was going to share that think because I have experiance of such kinds of phone, I had purchased near about 7 Feature phone and 4 Smart phone.
When you purchase second hand phone, check the phones specifications like phone’s battery, processor, display, camera, microphone, reciever, all keys, all sims ans memory slots on the following points.
Check phones battery. Put it on plane surface and revolve it, if you notice that it can revolve smoothly then it is damaged slightly otherwise it’s ok. Some another method to check battery os so technical thats why we cannot goes to their.
Check phone’s processor. If phone is more than one year old and phone’s processor is mediatek based then it mey problamatic. Because max to max mediatek based phones can gives very sattisfactory processing speed at starting, but it as old ad it may slow so thats why check the processor properly. If the precessor is Intel Atom or Qualcomm’s Snapdragon then it’s ok.
Check display and touch if any of phone. Check it carefully, if any point is present internally then the display is damaged. If no points or any spot found on display then no problem at all on display. Check touch, touch panel are may be capacative or any of four types. If it is capacative then chek how many touch point are present, single touch or multi touch i.e 2 point, 5 point, 10 point.
Check phone’s camera. Check mrgapixel of camera then found out aparture size which is shown in f/xyz the zyx is may be 2.2, 2.0, 1.8 the minimum the number of xyz has maximum aparture size. Smaller number is best. Then check sensors like leser autofocus, PDAF, CDAF, OIS, EIS, Colour spectrum analizer, led flash it may single led, dual led, dual tone dual led etc.
Finaly check all the slots and another hardware like earephone jack, charging slot, memory slot, Sim slot, speackers, microphone by out common method.
If all things are good then Congratulations.! You will gets an awesome phone. -Bhavesh Gujwar.