• No worries. Just a few minutes after I took the above photo, I started it in the boot-loader mode and then I could see the device as DfuTarg. I flashed it with latest firmware espruino_1v99_puckjs.zip using nRF Toolbox. After that, it is now working properly.

    I suppose its fine now. I'll continue working on it. I'll let you know if anything happens again. And thank you for offering a replacement.

    Thanks.

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