Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual - Manual (Page 213)

Rockwell Automation Publication 1766-UM001H-EN-P - May 2014 173
Using ControlFLASH to Upgrade Your Operating System Appendix D
9. Click the OK button.
10. Select the appropriate revision from the Firmware Revision dialog box and
click the Next button.