A teardown of the SOLUM Smart Tag, a BLE Tracker #ReverseEngineering @atc1441
atc1441 on Twitter performs a teardown and look into the SOLUM Smart Tag, a BLE Tracker. It functions similar to the Apple Airtag for Samsung Galaxy phones.
Opening is quite easy, not glued and with the right fingernails unclipped in a few seconds Main SoC is a Nordic nRF52833 ARM 512K Flash 128K RAM the small version of the nRF52840 We can also see an CR2032 Battery, and a Piezo buzzer.
Since we also want to know what the nRF SoC Firmware does lets try to connect the SWD Debugger to the nicely named pins on the PCB As expected that chip is locked! So let’s get out my good old All in One ESP32 nRF glitcher and hook it up.
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