Hello, Since today I do not get my UDOO booted anymore. Did not use it for 4-5 months (sorry). Put the power plug in and nothing. The PWL led is blinking in a certain fashion like: low, medium, high and fade or so When I put in the serial micro-USB the PWL blinks on-off but fast. Re-imaged the SD card and still nothing. Serial monitoring does not reveal anything. SO what to do. How can I check that it's really done and over with and then what to do?