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Chapter 8 OTA upgrade function
Preparation:
1. Download OTA upgrade package, which includes firmware upgrade APP and latest firmware.
2. Install EFR Connect
8.1 Connect the serial port and send AT+VERSION? Query the current firmware version number of the module and
send AT+ROLE=0 to configure the module in slave mode.
8.2 Open the EFR Connect software downloaded from the official website, click "Develop", and click "Browser".
8.3 Locate the Bluetooth module to be upgraded and click "Connect". The serial debugging assistant will print the
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E104-BT53C3 Manual User
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