crwdns2935425:010crwdne2935425:0
crwdns2931653:010crwdne2931653:0
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Turn the PCB to the other side. Find the soldering point of the battery as in the picture.
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0