Hi, I recently got a DB410c with Android pre-installed, and I am following the steps listed here in order to install debian using an SD card: Windows Host Installation for DragonBoard-410c - 96Boards
But I am stuck in the step 7. When someone plugs the power adaptor into DB410c, it seems like the board needs to boot up and a screen needs to be displayed in the monitor to continue with the installation. But when I plug the power adaptor, I wait some time but nothing appears on the screen (I am using a TV actually instead of a PC monitor). The user LED 1 is blinking like a heartbeat, and the BT LED is permanent on.
If someone could help me, I would appreciate that. Thank you.