HP 8600 Pro Firmware update not applicable

[carrchri]

My printer is HP 8600 Pro - N911a

My firmware is actually CKP5CN1829AR and I try to upgrade to the last (and single) firmware from HP support page which is CLP5CN2011AR without success. 

I  checked with HP support, but the answer given is : Printer unsupported, buy a new...

Why there is no more link for the firmware CKP5CN1829AR if the last is not applicable for my printer ?

Why I cannot upgrade to CLP5CN2011AR ?

I would like to update because I cannot access anymore to HTTPS embedded webserver part due to expired certificate (without HTTPS I cannot change administrator parameters) .Or is there a solution to replace the certificate with a own certificate ?

Thanks for Help.

[Anand_Andy]

Hi @carrchri,

Welcome to the HP Support Community

I understand you are facing an issue with your HP OfficeJet 8600 Pro - N911a printer. Not to worry I will help you to get a resolution to resolve the issue.

To assist you better:

• Have you tried with a different browser?
• Could you please elaborate more on the issue?

While you respond, I see that the last firmware update was released for this unit on Oct 31 2020, click here to download it.

Hope this helps! Keep me posted. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[carrchri]

Hello,

Thanks if you can assist me.

Yes, I think the last firmware will correct the certificate, but the problem is that is not possible to install this firmware.

I try :

- from printer -> no update detected

- from OJP8600_N911a_2011A.exe (on pc trough ethernet) -> the exe finds my printer but I can not launch the update, the select box is grayed and it displays firmware not applicable

- from sending directly the firmware (coulomb_base_pendiag_pp_CLP5CN2011AR_nbx_signed.ful) to the printer via the shared printer mechanism -> the file is sended but nothing happens

- from EnterpriseDU.exe (from unzipped OJP8600_N911a_2011A.exe) and changing the ini to force update -> I can launch the update but I have quickly an error of the update and the process stops without updating

What I think is, the firmware package is not do for all kind of hardware of HP8600 (I think it is only for the last model of HP8600) or there is an intermediate update to do and it is no more provided.

[Anand_Andy]

@carrchri,

Thank you for your response, I appreciate your efforts in trying to troubleshoot. I'm sending out a private message to assist you with the next course of action. Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link.

Hope this helps! Keep me posted for further assistance.

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!