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 390 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 390 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 390 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
justin222 0 Report post Posted October 12, 2019 I am receiving this error when trying to activate on a WF-3720. The firmware was updated successfully but this error appears, have tried on two different computers and have the same problem. I did buy an activation code, order 17956338. Share this post Link to post Share on other sites
wic.support 31 Report post Posted October 12, 2019 Good day. What is current printer version? At what point did you receive this message? Also, please, download firmware again from the site: https://chiplesssolutions.com/download/chipless/WF3720_FWF469TL_CL30J5_CL99Z9.zip flush it and try to activate second time. Share this post Link to post Share on other sites
justin222 0 Report post Posted October 12, 2019 The error happens right after I click the activate online button. I downloaded and flashed the firmware again and had the same problem. This printer received an epson firmware update yesterday that disabled my non genuine ink cartridges so the printer only goes into a screen saying it cannot recognize the cartridges when I power it on, so I am not sure what the current version is. Does it need to have genuine cartridges in it for this to work? Share this post Link to post Share on other sites
wic.support 31 Report post Posted October 13, 2019 Good day. As you can see on the screen, firmware that has been used for update is CL27J9, but firmware for the link I provided is CL21I2, somehow wrong version has been used. Please, delete all existing firmware archives from the PC first, then download firmware directly from my link, make sure that archive name contains CL21I2, then unpack it and execute. Share this post Link to post Share on other sites
FJP 0 Report post Posted October 13, 2019 The link you provided for CL2112 is a download for CL27J9. It may be named CL2112 but its not! Share this post Link to post Share on other sites
wic.support 31 Report post Posted October 13, 2019 Good day. I think it will be faster if you contact me directly via messenger, I will send my contacts in PM. Share this post Link to post Share on other sites
twwalkers 0 Report post Posted October 13, 2019 I have the same issue as Justin, above. The download you provided for CL2112 contains CL27J9 which results in a "wrong ID readed from the printer" when trying to activate. do you have a link to the correct firmware file. Using a WF-3720 printer. Share this post Link to post Share on other sites
justin222 0 Report post Posted October 13, 2019 I think the link that was provided is the right firmware as it shows the correct version when transferring but then the printer says finished and shows the wrong version, it appears the printer is not actually accepting the firmware. I've tried flashing it like 10 times. Share this post Link to post Share on other sites
wic.support 31 Report post Posted October 13, 2019 We will investigate this problem, I will write back when the solution will be available. Share this post Link to post Share on other sites
wic.support 31 Report post Posted October 14, 2019 Please, try to use new version of the license application from the link below: http://www.chiplesssolutions.com/download/updates/license.zip Password is "3720". Share this post Link to post Share on other sites
justin222 0 Report post Posted October 14, 2019 Tried that file and same result. Share this post Link to post Share on other sites
twwalkers 0 Report post Posted October 15, 2019 Just tried three times.... still gives same error. Share this post Link to post Share on other sites
MLG 0 Report post Posted October 15, 2019 I am having the exact same problem as Justin. My WF-3720 is the same firmware version, CL27J9 and displays the same behavior when trying to update to CL21I2. I have not purchased the chipless key yet, I wanted to make sure it would work first and looks like it doesn't at the moment. I will purchase if it can be fixed. Share this post Link to post Share on other sites
MLG 0 Report post Posted October 15, 2019 I found a way to update the firmware successfully... Before: 1. Attempt the firmware update as previously described with CL21I2. 2. Once the update utility says it has successfully sent the firmware to the printer and has the finish button, look at the printer. 3. While the blue led is blinking on the printer, it is attempting the firmware update, unplug the power to the printer. This will effectively brick it. This idea from Nougart's post here: 4. Plug the printer back in and power it on. 5. The printer should now show it is in recovery mode. 6. Attempt the firmware update once again with CL21I2 and this time it should work. It worked successfully for me and I can now get the Printer's ID successfully from the license.exe. I performed this with no ink in the printer. When I put my 3rd party ink in the printer I got this error: I bought the key and used the activate online and it updated the printer successfully. I turned it off as stated in the instructions and then powered it back on. It took quite a while to come back online but once it did all is good, the error is gone and it recognizes my 3rd party ink cartridges once again! Disclaimer: I take no responsibility for what happens to your printer, attempt this at your own risk. Share this post Link to post Share on other sites
twwalkers 0 Report post Posted October 15, 2019 I tried this again but included the steps for "bricking" and it was sucessfull. Acitvation worked and it is now chipless. Thanks for the help. Share this post Link to post Share on other sites
FJP 0 Report post Posted October 15, 2019 No go on the USA model. Share this post Link to post Share on other sites
