Originally Posted by BUFF 
it's where you can open a discussion with them re. RMA - you can't just send it in without prior authorisation & expect to get anything back.
Ok, good to know.
Originally Posted by TheWolf Use something make shift to touch the pins to find correct ones & do as stated. Then you can use the normal onboard jumper when you need to clear.
Yes, I thought that way too. But the thing is that after 3 previous defect ones (#1 loud buzzing, #2 DoA and #3 S3 resume problem), when probably all of few AB9 Qs (except one owned by my friend) ever delivered to Czech Republic passed my hands I would like once for all to be in possesion of 100% condition unit. For me this is a matter of sentiment
Anyway, thank you for answer.