For me its the ‘Knock Code’ that LG had on their phones (I really wish LG still made at least the V series phones)

Basically there was a four-square area and you set up a sequence of where you would tap to unlock the phone. That set of squares was only shown when you set up the code

Then, to unlock your phone, you would tap those areas in the sequence you set up (even with the screen off).

Fingerprint readers are nice, but I really do miss the knock code

Edit: did find this article with a way to do the knock code, but if done wrong, could brick your phone I guess.

Plus, article is from 2014. When I looked at XDA’s info on it (they also being the developers) it looks like development on it is over, but individual modules may or may not still be supported by their devs

  • MrScottyTay@sh.itjust.worksEnglish
    2·
    1 year ago

    Small sizes

    Multicolour notification LEDS - customisable for each app

    Smaller camera bumps and less cameras in general - not everyone wants or needs to be a professional photographer.

    Plastic bodies, with removable batteries via covers.

    I don’t know how many current phones support it but mine doesn’t… Extendable storage via micro sd

    Customisable vibration patterns for different contacts and apps - I remember how super old early Android Xperia phones being able to do this (alongside the LED mentioned above). I used to think this was stock android, I guess not. But if it was, why did they remove it, same guess for LED