Originally Posted by FrustratedToo
I just got the upgrade and noticed the puzzle piece lock was gone. I called Verizon - they said it wasn't their fault, the upgrade was provided by Samsung. I called Samsung - they said it wasn't their fault, the upgrade was provided by Google. I called Google. They don't even have any sort of customer service available (who cares what customers think?). After much effort I was finally given some obscure weblink in which to post a comment. I doubt if I'll ever hear back from them.
Obviously, I want the puzzle piece lock back too. I sent an email to Samsung at the above link too. Hopefully we can get this feature back. It was unique and different. The new circle/swipe feature is dull.
This is actually a Samsung thing... it is a part of TouchWiz which is their UI for Android.
You won't get it back, it's gone. Either wait for a custom ROM like Tweaked to be updated to the new firmware, or use some like MagicLocker and the SamsungGS theme to get it back.