Now HP printers are being bricked following firmware update

• Some HP laser printers are being blocked following a firmware update
• Affected models include LaserJet MFP M232-M237
• HP says it is aware of a “limited” issue

Already in trouble for blocking or reducing the performance of third-party ink cartridges, HP has now been accused of blocking legitimate HP-branded toner in some laser printer models.

Firmware version 20250209, released on March 4, now looks to be causing issues for owners of the LaserJet MFP M232-M237 models.

According to Ars Technica, the update was only meant to address “security updates,” a “regulatory requirement update,” “general improvements and bug fixes.”

HP is blocking its own ink?

Users on HP’s support forum have been reporting seeing error code 11 and flashing toner lights after the update, preventing them from being able to print.

One wrote: “I installed this toner cartridge about a month ago, with no issues. But today suddenly ...