after updating the operating system of a bunch of TC57, one of them is now stuck in a boot loop, it starts and shows the Zebra logo then reboot infinitely.
I also don't have access to recovery mode anymore, it doesn't boot until recovery mode but reboot before reaching this stage.
I only have access to the fastboot mode, but I'm in the impossibility to flash or erase anything since the device is in a lock state, if I had the code to unlock it I could easily fix the problem.
What is the fastboot command to unlock fastboot commands (flashing, erasing, ...) on the device ?
Is there another way to unlock the situation on my own ?