Bricked Nubia X without enabled USB debugging

Dear Nubia X specialists,
i need some help with my bricked Nubia X. After reading all threads here, I didn't found the right solution for my problem. After updating the phone something happend with the Nubia X and now it hangs on FastBoot Mode after Power on. The Nubia goes always in the bootloop mode. It's not possible to "reboot to recovery mode", also not possible "to reboot to emergency recovery mode". The only mode which is possible is to boot in to "edload".
It's not possible to enable...

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