My mother in law broke her phone in a way that it now only works on speaker phone. And she loves LOUDLY arguing with her daughter. We took the phone to a specialist and they say it is not reparable. She refuses to use headphones (we bought her 2 pairs and she had some before that too). We bought her a NEW PHONE that she refuses to use cause of some bullshit excuse. We have a small two room apartment and no way of leaving for at least half a year. Please help.

So. I want to break her phone. It can be permament, software, hardware. Whatever. I have basic IT skills jsut tell me how. I prefer to break it so that she can still use it without calls or that maybe just the speaker is broken? Preferably in a way that she cant prove it was me (she's not good at tech so it will not be that hard unless I smash it with a hammer). I have access to her phone sometimes, she goes out to smoke a lot but not for very long times. (She leaves her phone behind, usually ringing loudly, thats also lovely).