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Note from moderators: this message was originally posted in another topic, but it was moved to a new one to give more visibility for volunteers that help customers in the Community.

Original topic URL: https://h30434.www3.hp.com/t5/Printer-Setup-Software-Drivers/HP-Smart-login-issue-Error-Code-UA-400-...


Reply:

I have the same issue trying to scan from a Win10 64bit machine connected to an Envy 4520. I can print just fine, but scanning requires a login. I entered my email/account name (that works just fine logging in to the website), and I get an error before it asks for my password.

I have uninstalled the Smart driver from my computer, and reinstalled the current Smart driver from the HP support site. Same problem.

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