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Help Improve Face Unlock

idic

Well-Known Member
Is there a limit to how many times Improve Face Unlock will keep improving? I've taken several improved pictures through the day today, and now that I'm back on my couch where I took the very first photo I find the phone didn't recognise me! Do the oldest photos get deleted, so is there a limit to how many photos it's best to take?
 
more importantly, is there any way to save your old face unlock profile so you don't have to redo it everytime you wipe your phone/flash a new ROM
 
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