HP Release New Firmware It has just been confirmed that HP have released another new Firmware (September 2017) for any printers recently affected by non working compatible 950/951 cartridges.

The new firmware file removes outdated supplies authentication measures as deployed in firmware version 1640AR or 1640CR that may prevent the printer from working with certain ink supplies that contain non-HP security chips. Please note that even with this change HP cannot guarantee the quality or reliability of non-HP supplies.

If you have one of the affected printers listed, then we recommend visiting the correct link for your printer below:

HP Officejet 8610/8615/8616

HP Officejet 8620/8625

HP Officejet 8630

HP Officejet 8640

HP Officejet 8660


1) Simply download the correct firmware file from the HP website by clicking the 'Download' button above that is relevant to your printer model.

2) The downloaded file can usually be found in your 'Downloads' folder in Windows. Double click the file, it will run and update your printers' firmware.

*Inkredible.co.uk do not take any responsibility for failed Firmware updates and as such, they are only to be undertaken at the customers own risk.


Let us know if this re-enables compatible cartridges for you!


Which Printers Are Affected:

  • HP Officejet Pro 8610
  • HP Officejet Pro 8615
  • HP Officejet Pro 8620
  • HP Officejet Pro 8625
  • HP Officejet Pro 8630
  • HP Officejet Pro 8640
  • HP Officejet Pro 8660