How to remove car's key shell

After releasing the key blade, insert a smaller screwdriver into the side slot close to the key shell and carefully push the screwdriver towards the key shell (direction of arrow). The key blade is separated from the chip box.

(key shell)Insert a slotted screwdriver into the groove on the side of the chip housing and rotate to separate the housing buckle there(key shell). Then insert the slotted screwdriver into the groove at the top of the chip shell and rotate to separate the shell buckle there. Separate chip boxes, CR2032 battery on the left and chip circuit board on the right. A white rubber pad around the chip board should be waterproof.