Re: No way this is limited to just Samsung
The only thing they can avoid in code is registering a 'flat' print because the gel cover was your fingerprint. If you register your actual fingerprint without the cover then it will only unlock without the cover. And who knows how the various types/thicknesses of covers are affected?
It wouldn't be a problem for me if Apple had this since I don't use a case, let alone a cover, but many people do and all phone makers need to allow for that possibility. Having a fingerprint unlock that only works properly without a cover is not a good solution. How they didn't catch this in testing I have no idea, I suppose people don't buy cases/covers for phones when they are beta testing!