1, it is recommended to use the standard adapter for charging;
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2. Check whether the metal contacts of the watch body and the metal contacts of the charging line have stains, you can try to wipe with paper towels, etc. (If there is rust, use a cotton swab or cotton cloth to wipe with alcohol) to ensure that there is no bad contact between the watch body and the charging line;
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3. Remove the watch from the charging seat and put it back, re-plug it, and replace the socket.
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4, the above investigation is invalid, you can apply for after-sales testing.