WF-C5790 stuck in black screen

[WF-C5790 stuck in black screen]

Thanks for reply, after i check printer detected in wic also detected in device manager, but usb connection not detected in firmware updater. what i should do next ???

[WF-C5790 stuck in black screen]

Hi John_Admin, please help me, after i install chipless firmware my printer restart itself in black screen "Program Update/Recovery Mode Main" , i turn it off and on again many times but still cannot get rid of it also tried to disconnect cable for hours but still same, try to flash with firmware chipless again but not detect any usb connection. How to return to normal mode??? please help me so i can activate my licence.

[WF-C579r - error - 10091]

what is the solution for second problem wrong use pattern ???

how to identify if chip changed , so we are not wasting money before purchased the key ??? cos i received email purchased key cannot refund

[WF-C579r - error - 10091]

Order #222897
key sent to me 2 times not working for epson wf c579r ,  error 10091 

i email support , online chat seems to ignored my problem , no reply at all.
please fix problem for me

[ChiplessSolutions - Chipless Firmware for Epson Printers - Chip Virtual]

Hi john i update c5290 in firmware update mode and complete 100% but printer wont restart just stuck, in normal mode complete 100% but it show update failed , here is the firmware version costumer support gave me : FWG241TL_ZZ99Z9

Also try to run no ink updater said key not register , costumer service gave 20digits ink key but i saw from no ink manual it should 12digits, which one is correct , now im confused with the system you guys offered, please give me solution.

[Epson c5290 update failed , key not register]

Hi john i update firmware c5290 in firmware mode update printer wont automatically restart just stuck and i try again in normal mode complete 100% but in the end show failed update, here is the firmware costumer service gave me : FWG241TL_ZZ9Z.

Also i tried to run no ink updater said key not register. 

What i saw from no ink picture key should 12 digit but why costumer service gave 20digits key , im so confused no with the system you guys offer.

Please give me solution.