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
It’s all about selling the solution to a problem they created.
No SD card slot? You are forced to upgrade since you cannot store anything more than what they allow.
No headphone jack? Hope you like buying our inferior first party wireless earbuds or the shitty dongle thing.
Next up on the chopping block will be the charging port in favor of wireless charging, I swear.
By that point, I think I would rather just buy a phone that has all of those features and replace the components as needed instead of upgrading while also having a burner phone I can transfer whatever “e-sim card” they force upon me.
You don’t have to buy phone brand headphones. There are other wireless ones.