![]() Step8.: Click OK to complete the firmware version downgrade process for Epson WF-2540 printer. Step7.: Wait for the software to automatically downgrade the firmware version for Epson WF-2540 printer. Step6.: Enter the Epson WF-2540 Firmware Key, then click OK. Step4.: Select Epson WF-2540 printer then click Update. Step3.: Select Epson WF-2540 printer to Downgrade Firmware. Step2.: Connect the Epson WF-2540 printer to the computer with a USB cable, then click Change Firmware to see how to enter Service Mode. ![]() – If supported, we see how to enter Service Mode (Update Mode) for Epson WF-2540 color printer Step1.: Install the Wicreset software, then check if the Epson WF-2540 printer is supported with the firmware change feature: – Free Download Software Downgrade Firmware Epson WF-2540 for MAC OS: – Free Download Software Downgrade Firmware Epson WF-2540 for Windows: – Download Downgrade Firmware Epson WF-2540: – Unplug all USB connections to the computer except keyboard, mouse, and Epson WF-2540 printer need to downgrade firmware version. – Epson WF-2540 firmware key can fix data recovery mode errors, freezes, and cannot boot into normal mode. – After Downgrade Firmware for Epson WF-2540 printer, the printer can recognize the ink cartridge or we can install a compatible ink cartridge for Epson WF-2540 printer. Fix Epson WF-2540 printer error not recognizing external ink cartridges: Epson WF-2540 Incompatible Ink Cartridge, ink cartridges are not recognized, the ink cartridge is not recognized. – This article shows how to downgrade the firmware version for Epson WF-2540. If we try to insert a compatible ink cartridge into the WF-2540 printer, the printer will warn not to recognize the cartridge and give error messages: Epson WF-2540 Incompatible Ink Cartridge, ink cartridges are not recognized, the ink cartridge is not recognized. – When the Epson WF-2540 printer is updated to the new firmware, only genuine ink cartridges are received but not compatible ink cartridges. – Driver of Epson WF-2540 printer automatically updates firmware to the latest version, causing the printer to no longer detect ink cartridges, red light, and error light with Epson WF-2540 Incompatible Ink Cartridge error message and can not print. ![]()
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