Tone board Warranty?

My tone board is dead. How long is the warranty , and who do I contact for an RMA? I’ve emailed the help section on the website with no response . Any help would be greatly appreciated.

Hello, The Khadas Team are just now returning from Spring break. I’m sure they are working hard to catch up, you should hear from the help request soon.

Hi, how did you realize that your board is dead?