Edward 0 Posted October 5, 2020 After installing firmware c5790 v4 I encountered read failed -1 when activating online Quote Share this post Link to post Share on other sites
Admin 14 Posted October 6, 2020 Good afternoon! Please try this new file for you. https://inkchip.net/download/INKCHIP.net_Firmware_99_WF5790_v1.rar 1) Upload firmware which I sent 2) Switch on in normal mode(!!!!) just turn on button . - dont put printer in Program Update mode. (no need to press few buttons while turn on the printer) 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 - then will power OFF. Now power on the printer - chipless firmware is installed in your printer! Quote Share this post Link to post Share on other sites
GhostMaster 0 Posted December 13, 2020 After doing that? proceed now to activation? Quote Share this post Link to post Share on other sites
Admin 14 Posted December 16, 2020 Yes, everything else according to the instructions! Quote Share this post Link to post Share on other sites
