Dell's Engineering department has identified that looks like when updating AWCC from version 220.127.116.11 to a newer version, there is a small issue with the LEDs, caused due to the firmware upgrade not flashing correctly. (This is sometimes seen, only when the upgrade is run while the keyboard LEDs are off).
Please try the following steps:
Note: ALL AlienFX settings and themes will be lost after the following steps as everything is from the defaults.
Uninstall the version of AWCC that you've just installed (for a clean uninstall and reinstall make sure you follow ALL the steps in this article)
Clean install AWCC version 18.104.22.168 to force the firmware back to version 1.0.5
The Power LED will still be off at this point, Reenable the keyboard LEDs using the Fn + F12 keys together
Close AWCC and uninstall version 22.214.171.124
Clean install AWCC version 126.96.36.199 to upgrade the firmware to version 1.0.7
After successful installation you will have the power LED back and the default blue keyboard light
Note: Only by doing clean installs can we ensure the fix. An upgrade install will not suffice.
DELL is also working on a new AWCC that should fix the issue.
This is fantastic news! Glad to hear they are making progress on fixing these AWCC bugs.