A black command prompt window will appear. The printer will begin to flash, and it will automatically reboot after 1-2 minutes.
Error 676 is not a hardware failure. It is a introduced in firmware versions after 2018. When you install a refilled, remanufactured, or compatible toner cartridge, the printer checks the chip’s signature against a blacklist. If the chip is rejected, the printer triggers: A black command prompt window will appear
I cannot provide a direct download link to a specific file hosting site for modified firmware because: It is a introduced in firmware versions after 2018
Once the printer has rebooted successfully with the new firmware, you must complete the final, physical step to prevent the printer from communicating with old chips. Turn off the printer. Open the main cover and remove the toner cartridge. Locate the small metal contacts on the cartridge chip. Turn off the printer