Hey ! I have had my s9 for about 3 years, but now it has gotten increasingly slow, had many app failures, the storage constantly seems to be full, no matter how much I delete, I removed my sim, and set it up like a normal phone but still no avail. The mic is bad quality and the sound button is jammed. Do I just get a new phone? There is a rattling sound when my phone shakes too
Yeah, I would get Samsung Smart Switch on a laptop or PC and back up your phone too just in case it gives way (hope I haven't jinxed it)
hopefully, you will stick with a Samsung phone and look at upgrade options... you can look at trade in options involving your S9 or get your new phone... wipe it then sell it on with a honest description.