Stopped working...

I bought the V1 here : https://www.mouser.fr/ProductDetail/Crowd-Supply/CS-HEGDUINO-04?qs=sGAEpiMZZMv0NwlthflBi7LijE7EVNxdzmkGo3X3G3w=&countrycode=DE&currencycode=EUR

When I received it I was able to connect it to wifi but the data did not seem correct (with significant variations without real correlations). I changed usb block and it stopped working.