John_Admin

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 WF3720 - http://www.2manuals.com/product_info.php?cPath=107&products_id=1850 You can pay now difference in Firmware and Activation Key cost only - $50 - $20 = $30 Link for payment - https://store.payproglobal.com/checkout?products[1][id]=47590

How many characters has your key??

20k

Maybe you enter Activation Key with mistake

I just see what I see in your order You put that address. Not I did. http://prntscr.com/rpcn9l

use hardware chip resetter

https://chiplesssolutions.com/download.shtml download License here

Your order has been sent to email you have provided when placed the order Check your email - E-mail gio.rambo_87@hotmail.com

Use License.exe utility and Activation key

We havre no one order made with email - grambaldini@gmail.com give us your order number

Download this firmware - http://chiplesssolutions.com/download/XP240_FWF732TL_ZZ99Z9_2019.zip Upload firmware to printer in normal mode - dont put printer in Program Update mode. 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 now in your printer! Use License and Activation Key

What issue?

Upload firmware in normal mode dont put printer in Firmware mode then use your key

sent

sent but goldiliious375@gmail.com INVALID_ADDRESS, ERROR_CODE :550, ERROR_CODE : 5.1.1 The email account that you tried to reach does not exist.

VZ_customs, see private message

FA20I4 is right version So you have already uploaded to printer Now you have to run License utility and use your Activation Key. You can find all your orders and keys in your 2manuals account

no

estimated date of finishing chipless firmware developing is - march-april 2020

What is your current firmware version now?

Aftter updater stopd at 99% - please shut down updater and run License.exe utility and use your Activation Key

Different products - different prices

Yes Printer must be connected to PC You can't use License.exe utility if printer is not connected to PC

How can you upload firmware from PC to printer with your PC OFF?

Please follow Step by Step Guide - http://www.2manuals.com/product_info.php?cPath=107&products_id=1945