Wiping the Serial EEPROM on a smart meter reveals a handy test/config menu system!
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Fun to be had here… 😈

5:24 PM · Jul 25, 2021

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This menu is accessible via the IR port at 9600 8N1
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Replying to @BitBangingBytes
Peek/poke is a nice capability.
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Absolutely
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Replying to @BitBangingBytes
Ahh, okay. For a second I thought maybe there was another weird niche OS I'd never heard of. en.wikipedia.org/wiki/Teridi…
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Nah, just another device with an embedded 8051 ;)
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Replying to @BitBangingBytes
I’m curious what is / can be encrypted and why there’s a “Disable Encryption” in the menu but no “Enable Encryption”. And I am guessing you have to rest to factory defaults to Enable. It’s been very interesting to follow your discoveries. Thanks!
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Started playing last night early into the morning, lots to mess with here including how to enter this menu AFTER the meter has been configured… you get locked out after assigning a LAN ID.
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