If, like me, you were trying to install darkxst’s MultiPan (Thread + Zigbee) firmware, I had to do this manually. Here is how I did it…
You will need a terminal program that supports Xmodem file upload. Here we will use ExtraPutty
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Download the firmware .gbl file you want to flash (If lyou’re looking for MultiPan firmware, start here. Get the most recent ZBDongle rcp-uart build with 460800 baud rate)
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Remove your ZBDongle from the case by removing the 2 screws on the front (Side with USB connector) then plug the dongle in (suggest using a hub or extension cable as you will need to be able to access the dongle)
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Launch ExtraPutty and select Serial under Connection Type.
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Click ‘Serial’ under the Connection menu on the left
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Select the COM port of your ZBDongle, set Speed to 115200 (8,n,1) and Flow control None (DTR/RTS disabled) then click Open
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Hold the boot button (left button if you’re looking at the antenna connector) then click the reset button.
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You should see ‘Gecko Bootloader’ menu. Press option 1 to upload gbl. (should now say ‘begin upload’)
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Click File Transfers (Top menu) → Xmodem → Send File and select your gbl firmware file.
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Once the transfer completes wait a few seconds then you are done and it is safe to disconnect and reassemble the dongle.
