To update the bootloader of the Bqeel M9C Max box (S905x_2 / 16) (gxl_p212_2g.dtb) and be able to use bl301-injection; I flash atvX_p212_Oreo with aml-linux-usb-burn putting the box in amlogic mode by cutting pin # 30 of the Nand memory footprint.
Then I had problems when I wanted to use ceemmc -xv, it gave me an error for not finding the dtb partitions and there if I had to put atvXperience_v4_S905X_RT_BCM.
I also ran into the [usb_download] problem (Bqeel M9C Max - USB OTG port not working) but I was able to solve it without problems. Thanks to this great community.
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