Chipless Printers
Why Use Epson SC-PX3V Firmware Key
– Epson SC-PX3V 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.
– When the Epson SC-PX3V 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 SC-PX3V printer, the printer will warn not to recognize the cartridge and give error messages: Epson SC-PX3V 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 SC-PX3V. Fix Epson SC-PX3V printer error not recognizing external ink cartridges: Epson SC-PX3V Incompatible Ink Cartridge, ink cartridges are not recognized, the ink cartridge is not recognized.
– After Downgrade Firmware for Epson SC-PX3V printer, the printer can recognize the ink cartridge or we can install a compatible ink cartridge for Epson SC-PX3V printer.
– Epson SC-PX3V firmware key can fix data recovery mode errors, freezes, and cannot boot into normal mode.
How to downgrade firmware Epson SC-PX3V
– Unplug all USB connections to the computer except keyboard, mouse, and Epson SC-PX3V printer need to downgrade firmware version.
– Download Downgrade Firmware Epson SC-PX3V:
– Free Download Software Downgrade Firmware Epson SC-PX3V for Windows: 
– Free Download Software Downgrade Firmware Epson SC-PX3V for MAC OS:
Step1.: Install the Wicreset software, then check if the Epson SC-PX3V printer is supported with the firmware change feature:
– If supported, we see how to enter Service Mode (Update Mode) for Epson SC-PX3V color printer
Step2.: Connect the Epson SC-PX3V 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 SC-PX3V printer to Downgrade Firmware.
Step4.: Select Epson SC-PX3V printer then click Update.
Step5.: select Yes to continue.
Step6.: Enter the Epson SC-PX3V Firmware Key, then click OK.
Step7.: Wait for the software to automatically downgrade the firmware version for Epson SC-PX3V printer.
Step8.: Click OK to complete the firmware version downgrade process for Epson SC-PX3V printer.
Step9.: Check the SC-PX3V printer firmware after downgrading the version.
Video tutorial to downgrade Epson SC-PX3V printer version:
#Epson SC-PX3V Firmware Key
#Epson SC-PX3V ink cartridge is not recognized
#Epson SC-PX3V ink cartridges are not recognized
#Epson SC-PX3V red light
#Epson SC-PX3V can’t print
#Epson SC-PX3V does not receive ink cartridges
#Epson SC-PX3V firmware error
