I don't reach to install a firmware after hard reset on my MUDI E750

Good morning,
I did a hard reset on my MUDI and I can’t install the firmware.
When I used the interface UBOOT and try to install the firmware, my MUDI restart and stop at 90%. No more progress. I cannot use LUCI because when I start my router, it stops automatically.

Please, if you have another method for helping, thank you.

What version of firmware do you use? Did you download it from our website?

I used this site : GL.iNet download center

You can try some older versions, such as 3.105.
There are many problems with this version, but we can use it to verify that the hardware is not damaged.