thanks james on replying. it worked!
to sum, the issue was that the batteries got depleted and the chemicals runied the contacts and the micro sd card underneath it. thus i replaced it and got stucked with the pinout. and now the meter is working.
i’m sharing this to the form just in case someone runs into the same problem
[url=https://top4top.io/][img]https://d.top4top.io/p_18565flyb1.jpg[/img][/url]
