Your reply does not help me to close my project.
for your information, they decided to replace by new ones, but I am sure, same issues will come again and again.
I do not know how do you keep selling non-tested products.
and to be honest with you, your products has great options, but indeed they are not reliable at all. especially hardware wise.
another issues I am facing, but I do not expect that you have a solution for those : such as :
Your product when working as modbus server - serial , it stops transmitting and keep receiving after some hours of goodTx and Rx.
your relays outputs stays on even power is off, from time to time.
for my comments on youtube, people should know what they are going to face, if they decided to go with Unipi.
simply , endless project.........................