How to disassemble the Changan CS35 key?
2 Answers
Take a flat-head screwdriver and place it in the notch at the bottom of the key. Pry open the key shell, which is a bit tight, so slowly twist the screwdriver left and right to open it. After prying open the notch, separate the upper and lower shells along the edge. You can use a card or simply slide your fingernail slowly forward to separate the upper and lower shells.
Last time I disassembled the key fob of my Changan CS35 myself, and it was a pretty straightforward process, mainly for battery replacement. First, use a small plastic pry tool or a tiny screwdriver to locate the seam on the side or back of the key fob, then gently pry open the clips. Be careful not to apply too much force, as the plastic casing can crack easily. Once opened, you'll see the circuit board and the battery inside—typically a CR2032 coin cell. Gently remove the old battery and replace it with a new one. Remember to bring the old battery with you to ensure you purchase the correct model. Before reassembling, check that all small components are properly aligned, then press the casing firmly back together. By the way, the battery life is usually one to two years. Failing to replace it in time can affect the unlocking function, but avoid touching the circuit with your hands during disassembly to prevent static damage. I always do it myself to save money and time. If you're worried about making mistakes, just look up a video tutorial online—it’ll make everything clear. I recommend checking the key fob’s functionality regularly to avoid any unexpected issues that might cause delays.
