Take apart the refurbished BlackBerry 83 when you buy it to see which ones are inside.

LS positive solution if the appearance! If you disassemble the machine, it depends on the motherboard. The punch can see a hole about the thickness of a pencil on the motherboard, so you can't buy it! Look again is to see if there are any traces of repair on the motherboard, such as solder joints and the like. There is also a look at whether there are water stains on the motherboard (if you look carefully, JS will definitely deal with it if you enter the water). In fact, if you have experience, you can see at a glance that the original motherboard is definitely different from the repaired one!