GL-X3000 U-Boot download?

Hi there,
I have flashed the standard u-Boot from openwrt and now, the flash-UI is gone.
Unfortunately, you provide the u-Boot downloads only for a few devices.
Like here for older devices.

And there is a git repo here with an how to build something.

1.) Do you provide the original u-boot binary for GL X3000 ? Or:
2.) If I follow the git repo build, last step is "flash build/mt7981/release/fip.bin"

Do I understand this correctly that I can dd the fip.bin to /dev/mmcblk0p4 ?

Thanks and best regards,
Frood

@bruce You might assist here.

Attched it

Edit:
If you need X3000 uboot.fip file, please reply to me here, I will update the uboot file sharing link. Thank you!

Thank you very much.
I there also an official download page for this item?

We will not provide relevant files in the firmware download center.

Since for the common users, updating uboot itself is a relatively dangerous operation.
If there is an error in the process, the device cannot start uboot and firmware, it becomes bricked and needs to be re-write the Flash chip to recover.

Only users need, we may targeted to provide.