I just received my NanoVNA yesterday and it was shipped without the battery. I noticed there are unused pads directly below the coil, one of which connects to VCC batt. There is also a spot for a TF card slot.
I would appreciate if other NanoVNA owners could post photos of their boards for a comparison to see if there are different versions being sold.
Also, does anyone know if there is a touchscreen calibration routine available?
Mine is way off.
Thanks
Larry