Understanding the resistance readings between PCB connectors
None of these are shorted, which is what you read when the DMM leads are connected to each other.


  With black on MISO and red on MOSI, or SCK, the reading is 350+K Ohms.    


MOSI and CLK are both high R inputs as displayed


  With the black on MISO and read on RESET, the reading is 150+K Ohms.    


Reset is high R input as displayed


  With black on MISO and red on DIO5, the reading is 1.05K Ohms


Both are low R outputs but not active? probably diode resistance


  and red on GND shows 0.5K Ohms.    


Same as above

Unless you wore a gnded ESD strap, they were not untouched