Hi I fixed my router after i bricked it, but now when i power it, it ask a file via TFTP but i can’t manage to do it.
i guess you do not have a tftp-server, right? You want to boot from emmc?
it seems your emmc-system is broken, try to reflash it
afaik tftp is taken when an error happens while loading, i hope the error-flag is not triggered by the led-error
R3-mini U-Boot expects the EN8811H firmware to be present in a special partition. Depending on which U-Boot version you have, you need to provide this exactly as it expects. For example, with the vanilla main eMMC OpenWRT you need to have it in /dev/mmcblk0boot1 (see instructions here but be careful that there is a typo with installation on NAND, the correct name of the production volume is fit)