gyro 0 Report post Posted November 26, 2019 Hello, I have the same image as EEFRAINN and downloaded the latest firmware proposed by John_Admin. And this : Share this post Link to post Share on other sites
John_Admin 390 Report post Posted November 26, 2019 1. What firmware version have you uploaded to 7715 prinetr? 2. Did you do that in Program Update mode? 3. Did it show 100% comlete? Share this post Link to post Share on other sites
gyro 0 Report post Posted November 26, 2019 I had one of the latest firmware uploaded to the epson website. He was up to date. I just installed a CISS. The printer indicates error message : *** I proceed then as indicated in your tutorial to downgrade : Printer in firmware update mode : Launch EPFWUPD.exe ( http://chiplesssolutions.com/download/WF7710_FWG535TL_FA24I5.zip) After use EPFWUPD.exe, i have the same image as EEFRAINN and downloaded the latest firmware proposed by John_Admin. (my first post) Share this post Link to post Share on other sites
gyro 0 Report post Posted November 26, 2019 Manual_WF7710_chipless_en.pdf, step 6. Click Activate Online button (1) I have the message : Share this post Link to post Share on other sites
gyro 0 Report post Posted November 26, 2019 if i try to use EPFWUPD.exe with the printer stopped or running (not in firmware update mode), i get this: downgrade impossible Share this post Link to post Share on other sites
John_Admin 390 Report post Posted November 27, 2019 Download and extract this Firmware Version - FA24I5 - https://chiplesssolutions.com/download/chipless/WF7710_FWG535TL_FA24I5_FA99Z9.zip Upload firmware to printer in normal mode - dont put printer in Program Update mode. The uploading process will stuck at 70-80% - it is ok! Open task manager and stop updater process. Printer will blink for about 5-15 minutes accepting firmware - then will power OFF. Run License utility and use your ACtivation Key Please reply about results. Share this post Link to post Share on other sites
gyro 0 Report post Posted November 27, 2019 The printer now works with the ciss thanks to your latest solution. It was also necessary to do a manual cleaning of the nozzles. Thank you for your promptness. Regards, Share this post Link to post Share on other sites