Hello there, I’ve been trying to get my ROCK 3A to boot for the past week.
I’ve tried both the 16GB eMMC module and various microSD cards, (4-64GB), as well as various USB-PD/QC chargers, all supporting 9V/3A and 12V/2A, and different cables.
What I do is as follows:
- Format eMMC/SD with SD Format Tool
- Flash the eMMC/SD with one of the official images (list below) using balenaEtcher (on macOS)
- Plug in HDMI and eMMC/SD to ROCK 3A
- Plug in USB-C power to ROCK 3A
- Wait for up to 60 min
…and nothing happens. The green light works, but the blue one never lights up, and there’s no picture on my HDMI monitor either.
This is the list of images I tried:
I would love to hear any feedback on what I might be potentially doing wrong or what I could try differently.
Please let me know if I can provide more details to help diagnose this