BM786 Firmware Update Test

Testing if the factory/dealer firmware updating on the Brymen BM786 multimeter works.
The firrware is NOT user upgradable.
https://www.eevblog.com/product/eevblog-bm786-multimeter/
https://www.amazon.com/EEVblog-BM786-Multimeter/dp/B08N61LF4Z/

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