Transistor tester won't start self test mode

Is this what you are talking about?

This is the manual in question that the OP is referring to:
https://www.google.ca/url?sa=t&rct=...ttach=236653&usg=AOvVaw2U-3bZQdmynb3vuMuf5s0D

I've got this type:

**broken link removed**

https://www.google.co.uk/search?rlz...0k1j0i24k1.0.YVIY8nk8fro#imgrc=TSN0NuDTBXXdsM:

Even I press the button when it says "Selftest mode...?" nothing happens, just the screen blinks and tests my jumpers and gives a result with 00 ohms or close to that. But doesn't go into self test mode and still not calibrated.