How long can the device records (such as alarm records, door history of unlocking operations, power statistics, etc.) be kept?
How do I restore a faulty device to factory settings?
How to export the data recorded by the device?
What should I do when a firmware upgrade fails?
Notification reminds me there is a firmware update but I cannot update it?
How to clear device history data?
In addition to restoring factory settings, is there any other interface to clear historical data?
How to upgrade device firmware? Why is the device offline during the upgrade?
Why is my device not added to the "Energy Saving" feature?
Why is it that one device has received a firmware upgrade notification while another device of the same product has not?
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