this post was submitted on 03 Mar 2026
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What's the common way for updating these? I have some similar devices that use Wi-Fi but local stores seem to use some sort of nearby transmitter pointex towards the shelves, maybe infrared/optical
They seem to use infrared and or NFC for data exchange. I tried to read the NFC data with a phone app, however the data seems to be either encrypted, or it was some sort of image blob file that is shown on the display. You can read something, but it's not as trivial as reading other NFC tags.