No electrothermal water to unplug the plug? Then water?
May be the new hard, you point to the hot water to soften it, pay attention to avoid charging port. Then use the nail to pull open on the line.
The hot water bag is provided with a transparent small plug, which is a water injection hole and an exhaust hole. Hot water bag stores to buy should also send a small funnel, you find an empty bottle filled with tap water, the small funnel screw at the top, chuojin holes, slow water can be filled with water, 7 almost, and then plug the small plug. When heated, sometimes hot water bags will expand, pull out the plug on the line.
You can, but don't add too much, there are heated powder, lest more and pour out the influence of heating effect. By the way, add water to remember to exclude air, or heating is easy to expand
