Problem with the Moto G4 plus Startup Failed

[gael117]

Okay, i have a problem with the moto G4 plus, the device don't start the system
Starts in the fastboot mode and say "Startup failed"
"Failed to verify hub image boot
Failed to validate boot image
Failed to pass validation, backup to fastboot"
Please help
My oem is locked and i tried to flash the entire system with adb but it's impossible

 

[echo92]

What firmware did you have prior to your device failing? What results do you get from trying to flash the firmware (I'm guessing you're flashing via fastboot/the bootloader)?

 

[sanket_naik08]

did you update the phone to 8.1 after which this has occured