[boredandtattooed]

so he's just gonna use it as an organizer sort of thing?

you can put it in airplane mode, but that easily undone..

Dont think you can flash it to have no radio, though i dunno...

why cant he activate it? its not like itd be in your name.... unless you did something sketchy and the ESN is bad and therefore cant be told to a CS agent because theyll see the block... hmmmm.. if this is the case theres nothing you can do from him calling in and still trying, thus giving up the ESN to the carrier, maybe getting you caught.. radio disabled or not...

if your worried because you did soemthing wrong? dont give him the phone..
if your only worried about him activating it, i find it hard to belive he'll pass a credit check and such to get it activated

you can also try varying levels of bricking the radio, but certainly risk bricking the device entirely