Did you stop the boot process at 75-85 percent through the task manager? You can't let the boot process get to 99 or 100 percent and fail.
If you did everything correctly, then went to the activation program and inserted the key, and you failed to activate the chipless firmware, then I will send you instructions on how to flash the printer in recovery mode.
i have this exact same issue, tried to contact Kev but no replies on how too
Problem in activation
in Error with activation program and technical issues with the printer
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i have this exact same issue, tried to contact Kev but no replies on how too