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How to upgrade firmware of a device

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1 comment

  • Howard Lee

    I did this method, after my device gets the new firmware (SPF-B01 - 06.03.0094), it starts blinking 4 times, and I did every possible troubleshooting, the device wont go back to its original state. Plugging it will only blinks 4 times continuously, I am unable to go to pairing mode. The firmware that prompts from Ewelink app just bricked the device. Is there a way to return this?

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