HP Firmware Update Bricking Laser Printers (Even with HP Toner)
2025-03-10
HP's firmware update 20250209 for LaserJet MFP M232-M237 printers has caused widespread printing failures, even when using genuine HP toner. Users report Error Code 11 and a flashing toner light, despite cleaning contacts and reinstalling toner cartridges. The update, released March 4th, claimed security and general improvements, but users suspect it intentionally restricts functionality, causing significant frustration and financial losses for small businesses relying on these printers.