Downgrade Firmware not working on WF-C5390.

[Downgrade Firmware not working on WF-C5390.]

I'm trying to load the chipless firmware on this new model and there is no success.
The procedure occurs without problem, but when entering the chipless code, it throws an error -1. 
And when checking the firmware, it is seen that it has not changed.

The current firmware is 07.54.DE02MB.

I appreciate help.

[WF-C5790 - Abort Inicialization]

It´s new. I fixed it by loading the firmware as soon as the printer is turned on. The firmware can`t be loaded when it asks for the cartridges to be initialized.

Thanks.

[WF-C5790 - Abort Inicialization]

Greetings again. I can't load the chipless firmware because the printer didn't complete the inicialization. 

Is there a way to load it? 

Thanks

[WF-C5790 - Abort Inicialization]

Hi from Argentina. I need to know if there is any possibility to abort the printer initialization. I had a problem, the initialization was interrupted, and when I start the printer again, it tells me that there is an empty cartridge.

I will appreciate your help. Thanks!

 

[License.exe does not recognize my printer.]

Hi. Buy a key to activate the chipless firmware on my printer. But I'm having problems with the License.exe program.

I can not select the model of my printer, the space appears in white.

I appreciated the help. Thank you!