How To Downgrade Firmware Epson PX820FWD

Why Use Epson PX820FWD Firmware Key

– Epson PX820FWD downgrade firmware key: this is required when NON-ORIGINAL ink cartridges are NOT recognized by the printer. This is because printers’ firmware has been updated from the Epson server to the newest firmware where not original ink cartridges are forbidden to be used. In this case, You have to Downgrade firmware back to old.

– Driver of Epson PX820FWD printer automatically updates firmware to the latest version, causing the printer to no longer detect ink cartridges, red light, and error light with Epson PX820FWD Incompatible Ink Cartridge error message and can not print.

– When the Epson PX820FWD printer is updated to the new firmware, only genuine ink cartridges are received but not compatible ink cartridges. If we try to insert a compatible ink cartridge into the PX820FWD printer, the printer will warn not to recognize the cartridge and give error messages: Epson PX820FWD 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 PX820FWD. Fix Epson PX820FWD printer error not recognizing external ink cartridges: Epson PX820FWD Incompatible Ink Cartridge, ink cartridges are not recognized, the ink cartridge is not recognized.
– After Downgrade Firmware for Epson PX820FWD printer, the printer can recognize the ink cartridge or we can install a compatible ink cartridge for Epson PX820FWD printer.
– Epson PX820FWD firmware key can fix data recovery mode errors, freezes, and cannot boot into normal mode.

How to downgrade firmware Epson PX820FWD

– Unplug all USB connections to the computer except keyboard, mouse, and Epson PX820FWD printer need to downgrade firmware version.
– Download Downgrade Firmware Epson PX820FWD:
– Free Download Software Downgrade Firmware Epson PX820FWD for Windows:
– Free Download Software Downgrade Firmware Epson PX820FWD for MAC OS:
Step1.: Install the Wicreset software, then check if the Epson PX820FWD printer is supported with the firmware change feature:

– If supported, we see how to enter Service Mode (Update Mode) for Epson PX820FWD color printer
Step2.: Connect the Epson PX820FWD printer to the computer with a USB cable, then click Change Firmware to see how to enter Service Mode.

– How to enter Service Mode:

Step3.: Select Epson PX820FWD printer to Downgrade Firmware.


Step4.: Select Epson PX820FWD printer then click Update.

Step5.: select Yes to continue.

Step6.: Enter the Epson PX820FWD Firmware Key, then click OK.

Step7.: Wait for the software to automatically downgrade the firmware version for Epson PX820FWD printer.

Step8.: Click OK to complete the firmware version downgrade process for Epson PX820FWD printer.

Step9.: Check the PX820FWD printer firmware after downgrading the version.

Video tutorial to downgrade Epson PX820FWD printer version:

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