After-Sales - ONE MK-E18 User Manual

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AMAZING BOOSTER FOR STAGE

6. After-sales

Warranty1 Year (Subject to the date of manufacture)
Each machine is affixed with the factory code. The factory code
shall be provided when enjoying the warranty service. It is invalid
if torn
It's may need provide some videos or pictures to confirm the
problems.
Fault light (yellow) display and processing method