IPhone: deactivate find my iPhone without Apple ID?

I've just got a new iPhone 6 and I'm giving my old iPhone 4s to my brother. I can't remember the Apple ID I used to set up my 4s and I have a feeling I used a burner. Now, two years on, I regret it. I tried to guess the id so that my brother could use the 4s and activate the phone but to no avail. I was wondering if Apple could do something about it, as the phone is now useless, or if they can't, then a 'dodgy' repairs shop. In short, is it possbile to get around this activation screen?

Nope

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