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WF-7710 - Problem with Firmware FA25JA

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i have a Epson WF-7710 

1. I use Chipless keys and good Work

2. My clientes install WF-7710 and update to firmware FA25JA

3. Printer error cartidge

4. I reinstall last firnware FA27HC, but finished  with FA25JA, please view image

what  IS SOLUTION?

WhatsApp Image 2019-11-15 at 11.33.09.jpeg

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Download and extract this Firmware Version - FA99Z9 - http://chiplesssolutions.com/download/WF7710_FWG535TL_FA99Z9.zip
Upload firmware to  printer in normal mode  - dont put printer in Program Update mode -  the printer will restart , but the firmware won't get 100% - about  80%  -  just close it in task manager

After you get error message -  firmware wasn't installed properly - just use License.exe utility

Please reply about results.

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