I flashed my nexus 5x following the instructions from the official android website https://developers.google.com/android/images . I installed
fastboot on my
Ubuntu 16.04 and started flashing. After executing the script
flash-all.sh, it indicates that the phone was properly flashed in terminal, and even my phone shows commands that the firmware is getting installed. But after the end of the flash, my phone reboot and get stuck on a the message :
Firmware Update Do not unplug the USB connection until the process is complete
with a progress bar stuck at 0%.
I've tried flashing with the firmwares : 6.0.0 (MDA89E), 7.0.0 (NRD90M), 7.1.1 (NMF26F, Dec 2016). And with every firmware I get stuck after the flashing ends.
When I visited a link given by sancho.s , I noticed that I can't get into
recovery mode, my phone get stuck into the same
Firmware Update screen unstead.