It sounds like you're experiencing an issue with your BlackBerry KEYone, where it's stuck in the bootloader menu. The bootloader menu, also known as the fastboot menu, is a screen that appears when you try to access advanced boot options on your device. Being stuck in this menu can be frustrating, but there are several methods you can try to resolve the issue. Here are some steps to help you troubleshoot and potentially fix the problem:

: Some of these steps may result in data loss. Ensure you have backups of important data.

Stuck in Bootloader Mode - BlackBerry Forums at CrackBerry.com

: This PC-based tool can sometimes reflash the stock firmware to fix corruption.