PIN number on printer not registering through HP Smart

[merlowe33]

My printer is flashing E messages but when I go to HP Smart to finish setup and enter the PIN, it's not accepting my PIN as a valid number.

[A_Gayathri]

Hi @merlowe33,

Welcome to The HP Support Community.  

Thank you for posting your query, I will be glad to help you.

I understand you are encountering an error message (flashing "E" messages) on your HP DeskJet 4155e printer and you're unable to complete the setup via HP Smart because the PIN is not registering, there are a few steps you can take to troubleshoot this:

• Verify the PIN: Ensure that you are entering the correct PIN provided by HP Smart. Double-check for any typos or mistakes in entering the PIN.
• Restart Printer and Device: Turn off your printer and the device you're using to access HP Smart. Wait for a few minutes, then turn them back on and try again.
• Update HP Smart: Make sure that your HP Smart app is updated to the latest version. Sometimes, outdated versions can cause compatibility issues.
• Connectivity: Ensure that your printer is connected to the same Wi-Fi network as the device running HP Smart. Inconsistent or poor network connections can lead to issues in communication.
• Reset Printer: If the issue persists, try resetting your printer to its factory settings. Refer to your printer's manual for instructions on how to perform a factory reset.

Refer to this document: HP DeskJet 4155e All-in-One Printer User manual

HP DeskJet 2700, 4100, 4800 printers - Blinking lights and error codes

I hope this helps. 

Take care and have a good day.

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