After investigating Host OS, I observed resin-init-flasher service was down. with the help of this post Failed to start Resin flasher service , I realized my µsom don’t have internal memory and the os can’t be flashed.
After changing µsom, I am able to flash ResinOS on Humming board and the image is correctly downloaded. When I try it on my custom board, I have this error :
** Unable to read file imx6dl-cubox-i-emmc-som-v15.dtb **
Like indicated in my initial post, my board is recognised like Cubox-i board. Do you know how bootloader get back board informations ? I think if I were able to force board type to Humming Board, I would boot correctly.
U-Boot 2018.01 (Sep 03 2018 - 10:58:19 +0000)
CPU: Freescale i.MX6DL rev1.3 996 MHz (running at 792 MHz)
CPU: Commercial temperature grade (0C to 95C) at 37C
Reset cause: POR
Board: **MX6 Cubox-i (som rev 1.5)**
Watchdog enabled
DRAM: 1 GiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
MMC partition switch failed
*** Warning - MMC partition switch failed, using default environment
No panel detected: default to HDMI
Display: HDMI (1024x768)
In: serial
Out: serial
Err: serial