text: <s>[INST] PowerFlex 753 with new Main Control board Summary: Having electronic keying issue Had a main board go out in a Powerflex 753. New board says it is v10.2. I can not find the database for this version and when I try to create one it never shows up? I have up to v6.11 on my laptop. Running off of a compactlogix if that makes a difference? Can set to highest and disable for the time being if it will communicate correctly, but would like to keep the keying on. Thanks, DR [/INST] You can use controlflash to downgrade the drive to match your application. Upgrading your application to match your drive can be be a bit time consuming. If you go to this website: http://www.ab.com/support/abdrives/webupdate/index.html You can download the latest AOP for the PF750 series. That must be installed into your version of Logix 5000. At that point, you can select the proper firmware to match the drive. However, the firmware in your application is not too troubled (unlike earlier ones) so it's ok to stay with 6.11. From the same page noted above, you can download the firmware for 6.11. Install that into the drive and you should be good to go. \\n </s>