If you thought to buy second hand Mobile phone then you in then you will loosing your money because to buy second hand Mobile phone is totally waste of your money and you not satisfied with those product. Once I also bought second hand Mobile then Some time after it has many problems like as hanging, heating and not good battery backup etc.
The second hand Mobile phone have not a good processor. In the second hand Mobile phones is not a good network and performance. In the second hand Mobile phones there is very slow Internet speed and communication. I bought 4G handset but there was a problem that the mobile did not get the 4G speed. If you bought the second hand Mobile from shop they charges very high without any warranty.