User jAm-0 has issues getting into and out of his phone’s bootloader. He attributes this to the bootloader being corrupt and wants to replace it.

jAm-0 posts "Is it possible to re-flash the stock bootloader? I believe mine is corrupt somehow. It's a bit hard to explain how it's acting without actually seeing it, but it acts sporadic and barely works half the time. For example I can't reboot into the bootloader via adb, trying to power off the phone via bootloader doesn't work, and 9/10 times I try to turn my phone on it goes right to the bootloader."

User return.of.octobot provides instructions to allow reflashing the bootloader. One of the steps is to run fastboot flashing unlock_critical, which allows the bootloader to be overwritten.

Overwriting the bootloader is the only way to hard brick most devices, and fastboot flashing unlock_critical tells Android you don’t care and are willing to take the risk. Hard bricking makes a device unfixable on the software level.

return.of.octobot provides instructions, including the step of running , without any disclaimer

jAm-0 has another question and receives responses from return.of.octobot and another user, nrage23. Again, no disclaimers are given and the word “brick” isn’t even brought up.

nrage23 responds to another question with "You have to do the flashing unlock critical if you have not to flash things like bootloader, boot, and modem."

jAm-0 hard bricks their phone.

after nrage23 responds to the same question, jAm-0 responds with "Great to know, thanks for the info. Too bad my phone is hardbricked now. Wont power on. Wont connect to pc. No fastboot. No recovery. Beautiful paper weight"