InkLockout

HP firmware updates that blocked third-party cartridges

Known firmware versions that stopped non-HP-chip ink or toner from working, with dates and sources. "User-reported" means one or more owners say so but no press or maker source confirms it. "Unknown" means we list the version for reference but have no evidence it blocks anything.

HP calls this "dynamic security". HP's own wording: cartridges with a non-HP chip "may function for a period of time, but then cease to function", and changes arrive through online firmware updates (HP PDF).

HP firmware 2602A/B

Date
Jan 29, 2026
Status
Confirmed blocking

Cartridges with non-HP chips, including refilled cartridges and continuous ink systems, show a non-HP chip error after the update. The previous firmware for this family was 2530 (August 2025), per a Russian ink seller's notice.

Int'l ITC says HP released 2602A/B on January 29, 2026. Ars Technica notes some of these updates, including the OfficeJet Pro 7720's, appear to have come out in February 2026. Int'l ITC says eleven printer models.

Affected cartridge families

Printer pages: HP OfficeJet Pro 7720

Sources

HP firmware 2606 and 2607

Date
March 2026
Status
Confirmed blocking

Remanufactured and third-party cartridges with non-HP chips stopped working after the update, per the Int'l ITC (a remanufacturers' trade group) and The Recycler.

Exact release days are not published in our sources. Int'l ITC reported both on March 31, 2026, calling it the second lockout 'in less than a month'. Our sources do not say which number went to which printer family. Int'l ITC lists the models above.

Affected cartridge families

Printer pages: HP OfficeJet Pro 9015e, HP OfficeJet Pro 8025, HP LaserJet Pro 4001

Sources

OfficeJet Pro 9010e firmware 1N005.2450B.00 (user report)

Date
December 2024
Status
User-reported

After the automatic update, third-party cartridges were rejected with 'blocked by the printer's firmware because they contain a non-HP chip'. The owner says HP+ was never activated.

One owner reports this version installed automatically in December 2024. Not confirmed by HP or the press. Single user report.

Affected cartridge families

Printer pages: HP OfficeJet Pro 9015e

Sources

HP firmware 2623A (OfficeJet Pro 8020e family)

Date
Jun 26, 2026
Status
Unknown

We have not found a report that 2623A blocked new cartridges. Listed so you can match the version on your printer's status report.

Date as listed by YRTS, a cartridge maker, which says its 910 cartridges work with it on printers not registered to HP+. Seller listing only.

Affected cartridge families

Printer pages: HP OfficeJet Pro 8025

Sources

List last checked Oct 21, 2026.