Right-click the flashall.bat (or equivalent .bat flashing script) and select .

Find the specific Auto-Loader ( .exe file) for your model from a reputable source like the CrackBerry forums.

“My KEYone got stuck in the bootloader menu after a security update failed. I tried wiping cache and factory reset from recovery – nothing worked. Downloaded a repack autoloader from a CrackBerry thread. Ran it on my Windows 10 laptop. It took 12 minutes, and the phone rebooted like new. Lost all my data, but the hardware keyboard and battery life came back perfectly. Would not recommend for non-tech users, but saved me from buying a new phone.” – (CrackBerry forums)

Or manually hold for 15 seconds.

Before attempting to flash your device, you must gather the correct software tools and device drivers on a Windows PC.

BlackBerry devices feature strict write protection. If you are trying to flash a firmware version older than what was previously installed on the phone, the bootloader will reject it due to anti-rollback security protections. Always ensure your repack matches or exceeds the security patch level your phone last held. Post-Flash Execution

Type the following command and press Enter to verify the connection: fastboot devices Use code with caution.

This comprehensive technical guide outlines why this happens and provides a complete, step-by-step walkthrough to repair your device using the . Why the BlackBerry KEYone Gets Stuck in Bootloader Mode

Are you seeing any on the bootloader screen?

Blackberry KEYone Stuck in Bootloader Menu Repack: Troubleshooting and Fixes