No
Y
es
Is this the teknic
Hub?
No
Might ha
ve to replace
the cable
No
No
Y
es
Is the USB cable
making good connection?
Check the USB: it might need to
be replaced
Y
es
Is this for a ZMAIN131?
Is there a jumper between V
- and the
grounding terminal
on the power
supplies?
Add a jumper to
power supplies: mak
e
sure there is a
jumper on all of the power supplies to av
oid future problems
Does it reconnect when y
ou restart
the softw
are?
Y
es
Install new softw
are
version
Board Disconnects