Trouble: XT925 Unlocked, Rooted, CyanogenMod ==> Stock 4.1.1 ==> Upgrade 4.4.2

[retalger]

Awhile back, I unlocked and rooted my Motorola Droid Razr HD running 4.1.1. Then I installed a custom ROM (Cyanogen). Time has passed and to upgrade Cyanogen, I understand I have to upgrade to 4.4.2. I'm finally ready to do this. So I did a restore back to 4.1.1. All seems good there. But when I try to upgrade to 4.4.2, it fails and the phone keeps power cycling on and off (running 4.1.1). That's from an OTA update. USB update says no update available, so that does not seem to be an option. I'm at a loss as to where to go from here. I did a restore back to 4.1.1, so now the phone is not power cycling. Anyone know what I'm doing wrong please (to update to 4.4.2)? This is my first phone doing all this advanced stuff, so it could be something simple this newbie is missing. TIA.