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HP OfficeJet Pro 8720 indicates that it's locked by whoever set it up. I've read similar post and the apparent solution but that did not work.
1. I've tried uplugging holding the power button down solution
2. I've tried the BL x4 but there is no support menu
3. I've tried the ? but there are no BL buttons after touching the ?
Welcome to the HP support community.
As you have tried all the steps and issue still persists,
This seems to be a hardware issue.
I request you to talk to HP support.
They might have multiple options to help you with this.
To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.
Sandytechy20 I am an HP Employee
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