Return of faulty board

[fdx]

Board I got is faulty somehow.
I tried every single image, tried phynix, winimage, DD on linux every single way on multiple SD cards (2GB, 4GB, up to 16 and even 32GB - more than 10 different SD cards) 

No luck at all...

Sometimes I can see for bries second starting up logo (penguin with moving txt on screen) then dissapears and nothing else. Even red light goes down.

I have enough  of "fun" and I would like to replace board with the working one or return for full refund.

I've send email to support but no answer at all...

I understand guys are busy but if success of the board is too much for you to handle maybe its time to find someone that would do that for you.

[g_t_j]

Have you tried other PSUs and micro USB leads?
The fact that the red light turns off after a while leads me to believe you probably have an underpowering issue.

[fdx]

I'm working in a service center for a tablets, PC's etc.

I've tried many chargers and cables. (5V2A, 5V3A)

[g_t_j]

I'm working in a service center for a tablets, PC's etc.

I've tried many chargers and cables. (5V2A, 5V3A)

I see.
I guess support is the only ones they can help you with troubleshooting or returning the board. 

Good luck with that. It might take some time to get a response but they will contact you. At least they did in my case.

[fdx]

I'll give it to my tech to check the usb port on the board. maybe there is a really problem with power and the only think I did not test is the port on the board.

[Ghost]

I'll give it to my tech to check the usb port on the board. maybe there is a really problem with power and the only think I did not test is the port on the board.

You can also try powering via the Euler Bus or Pi-2 interface as well, if you like. 

Also, how did you burn the images? (PhoenixCard, Win32DiskImager, Rufus, dd)

And what microSD card are you using?

And what monitor/screen are you using?