[abctoz]

Probably I won't be able to do it thought because I trade-in this iPhone

Is It still In your possession and under warranty?

Yes it's still in warranty until 2021 and still in my possession

[mothered]

Probably I won't be able to do it thought because I trade-in this iPhone

Is It still In your possession and under warranty?

Yes it's still in warranty until 2021 and still in my possession

Then why not SE them for a warranty replacement?

I'm simply providing my view. Ultimately, It's your call.