DSO2D10 - issues with GND coupling and FFT cursor, firmware question

e_admin678

Customer consultation
Hello,
I have three questions concerning my recently procured Hantek DSO2D10:

• The device is reporting a small voltage on CH1/CH2 when GND coupling is enabled. I have run the calibration after waiting approx. 20 minutes for the device to warm up and I still get this error. It's around 40 for CH1 and around 20mV for CH2 at 1V/div setting. Is this normal for this scope?
• The curson tracking of FFT is not accurate. It seems to be a bit off to the right, reporting incorrect X/Y values Please see the video (1MHz signal from built-in AWG)
• My device has been  updated recently with the update file dso3kb_20221028.upk downloaded from your site. The reported software is correct - 1.0.2.0.0(221028.00), but the firmware remained the same - 3202. My hardware version is 003.002.001.000.000.000.000.001. Will you provide an official update to the firmware version as well?
  

e_admin678

1 This is a normal phenomenon, so don't worry
2 Adjust the display type and change the type to * point* in * display *（The MATH waveform is not composed of points, so the cursor cannot find the position）
3This is the firmware upgrade package. Upgrade the firmware to 3205