How to replace the barrel
1.Wait until there is no heat in the barrel. Ensure that the temperature of the replaced barrel is safe.
2. Check the position of the needle and the hole and press until you hear a "click" sound.
3. At this time, the prompt on the barrel, "Beware of high temperature" and the temperature LCD screen are on the same side.
4. If you need to release the barrel, find the lock button and push it upwards.