Hello! I'm sorry to hear about the issue you are facing with your printer after upgrading the firmware. It seems like the upgraded firmware may have caused the printer not to recognize the ink cartridges.
To address this issue, you can try to revert the printer back to its previous firmware version. However, please note that downgrading firmware can be a bit tricky and may not always be recommended by manufacturers as it can lead to other issues or void the warranty.
Here are some steps you can follow to try to revert the printer back to its previous firmware:
1. Contact Epson Support: The best course of action would be to contact Epson customer support for guidance on how to revert the printer's firmware. They may provide you with specific instructions or tools to help you with the process.
2. Check for Firmware Downgrade Tools: Sometimes, there are third-party tools available online that can help you downgrade the printer's firmware. However, be cautious when using such tools as they may not be official and could potentially harm your printer.
3. Reset the Printer: You can also try resetting the printer to its factory settings, which may revert the firmware to the previous version. Refer to the printer's manual or Epson's website for instructions on how to perform a factory reset.
Remember to proceed with caution when attempting to downgrade firmware, and if you are unsure or uncomfortable doing it yourself, it's best to seek help from Epson customer support or a professional technician to avoid causing further damage to the printer.