Thanks in advance to anyone who will answer me! I bought this HANMATEK DOS1102 DSO on Amazon in 2020, but I didn't use it much. I only recently realized (I hadn't really noticed, mea culpa!) that the measures are indicated incorrectly, A (Ampere?) instead of V (Volts) and furthermore channel 2 reads everything 10 times higher, apart from the frequency: does anyone know how to fix it? I have not found anywhere a firmware update, or the possibility of solving the problem (perhaps with the USB port), technical assistance does not even seem to exist...
Thanks