Pokit Pro problems

Hi,

I got the shipment of the Pokit Pro yesterday.  Installed the app into my Samsung Note 10 - and upgraded the firmware on the Pokit Pro as well.  

I tested DC voltage - it is okay.  But, when I tried testing resistance - not shorting the leads is correct (OC).  But when I shorted the two leads - I expected to see 0 ohms - but it is giving me anything but zero.  It goes from 0.8 to 14 ohms (up and down).  Compared with my Fluke 77 - shorting two leads gives 0 ohms all the time.  

Ting Sern