Appendix
4 Remove the circuit board by lifting it out of the case using an opening tool, then put the case aside and place the circuit board face down on a flat work surface.
5 Disconnect the battery connector as shown in the image below.
6 Push the back of the battery with your fingers and remove the battery.
Make sure not to press or puncture the battery with your fingernails or other objects when removing it. This may cause explosion or fire.
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