How to untie everything you need from a broken iphone?

Question

iPhone

My iPhone 5 absolutely does not turn on after the fall, the repair cost in aStore was estimated at 5k and I decided that it was too expensive, I’d better buy a new one. Found a man who will buy it and killed in such a state. The question arose, what action should be taken? Previously, I had already sold an iPhone, but then it was in working condition and I calmly unlinked Apple ID, iCloud, and so on, but what should I do now?

Answer 1

Go to the site icloud.com and untie it there.