Humberto 0 Report post Posted December 26, 2018 Today i bought chipless solution for Epson WF 3720 but does not work upgrade firmware send an error - ROM IS NOT WRITABLE What can i do? Share this post Link to post Share on other sites
John_Admin 382 Report post Posted December 27, 2018 If You can't make firmware downgrade by WIC utility - it means Your printer has newest Main board version. Epson made some changed in new main board. The solution in this case is here: Use Activation Keys and License.exe application for 3720 - http://www.2manuals.com/product_info.php?cPath=107&products_id=1837 Share this post Link to post Share on other sites
Humberto 0 Report post Posted December 28, 2018 Hi tried but send me this error Wrong ID readed from the printer Share this post Link to post Share on other sites
Humberto 0 Report post Posted December 31, 2018 It is posible key sended for use in a Epson WF 7710? Share this post Link to post Share on other sites
John_Admin 382 Report post Posted January 1, 2019 Give us screenshot please Share this post Link to post Share on other sites
Humberto 0 Report post Posted January 5, 2019 Attach error Share this post Link to post Share on other sites
kipngok 0 Report post Posted January 7, 2019 Today i bought chipless solution for Epson WF 3720 but does not work upgrade firmware send an error ROM IS NOT WRITABLE What can i do? workforce 3720 pro enters program update mode but ROM is not writable using chipless firmware Share this post Link to post Share on other sites
John_Admin 382 Report post Posted January 9, 2019 Humberto, I think you have NOT uploaded WF3720 firmware to printer yet See how You can do it - https://www.2manuals.com/product_info.php?cPath=107&products_id=1837 kipngok, We have updated firmware for WF3720 I think you have uploaded old firmware. Please download WF3720 firmware from this link - https://www.2manuals.com/product_info.php?cPath=107&products_id=1837 Share this post Link to post Share on other sites