Call a Toshiba authorized service provider. They will either generate the code remotely (via Toshiba’s cloud portal) or send a technician with the official tool.
If you are a certified Toshiba technician, an IT manager responsible for a fleet of Toshiba e-STUDIO multifunction printers (MFPs), or an independent repair professional, you have likely encountered the dreaded "Challenge Code" screen. This security feature locks down critical service modes, preventing unauthorized access to system settings, firmware updates, and HDD initialization. Toshiba Challenge Response Code Generator Download
When the screen displays Password = , execute the following key sequence precisely: Press [CTRL] , then [TAB] , then [CTRL] , and finally [ENTER] . Call a Toshiba authorized service provider
Toshiba challenge/response got cracked · Issue #49 - GitHub or an independent repair professional