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- HP Community
- Printers
- Printer Setup, Software & Drivers
- I would like to downgrade my firmware: Officejet Pro 7740

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12-23-2021 04:07 AM
@DionD, Welcome to the HP Support Community! I’m here to help.
I understand the HP ink cartridge is not working. To assist you better, what is the error? Kindly elaborate.
Which of the ink cartridges is not working?
Keep me posted for further assistance.
KUMAR0307
I am an HP Employee
02-01-2022 12:45 PM
Same problem here. After firmware upgrade came the surprise:
"Older Generation Cartridge. This cartridge is an older generation cartridge that does not work in your printer. It can still be used with some older printer models. If you do not own an older printer model and your cartridge is a genuine HP cartridge, contact HP Support for more information."
Cartridge is an original HP 954XL Magenta Officejet Cartridge (L0S65A) that was working fine before firmware upgrade !!
Mauricio
03-11-2022 04:49 AM
@NathanDeck wrote:Having the same issue. Did you get a solution?
You need to downgrade the firmware and disable auto upgrade until you have used all the old cartridges. I found the old version on the Internet.