We have attached our official charging guide video from YouTube.
Key points:
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Please fold the left temple first.
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When the glasses are placed correctly, the indicator light will display the battery level for about 3 seconds and then turn off.
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If the glasses are not placed correctly (e.g., if the right temple is folded first), the indicator light will flash orange.
See if this resolves your issue.
Case 2:
We solve the charging issue on version 1.2.9.