Envy pro 6400 all in one printer all lights flashing, had to unplug

[DR1952]

Envy pro 6400 all in one printer all lights flashing, had to unplug

[Jay_G24]

Hi @DR1952,

Welcome to the HP Support Community. 

I'd like to help!

I understand all the lights on the printer are flashing

Try the below suggestions -

 Reset the product

• With the printer turned on, disconnect the power cord from the rear of the printer.
• Unplug the power cord from the wall outlet.
• Wait at least 60 seconds.
• Plug the power cord back into the wall outlet.
• Reconnect the power cord to the printer.
• Turn the printer on. HP recommends plugging the printer directly into a wall outlet.

  Try updating the printer's firmware -HP Printers - Updating or Upgrading Printer Firmware

Also, try the steps in the documents -https://support.hp.com/in-en/product/hp-envy-pro-6400-all-in-one-printer-series/29256678/document/c0...

• If the issue persists, I've sent you a private message with further instructions to get this issue sorted.
• In order to access your private messages, click the private message icon on the upper right corner of your HP community profile, next to your profile Name or simply click on this link:  https://h30434.www3.hp.com/t5/notes/privatenotespag

Hope this helps! Keep me posted

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