Will Asurion charge me for my replacement phone if I've rooted it I have an android phone with Sprint which I dropped and cracked the screen. I have insurance, and they've already sent me a new phone. However, my old phone is rooted and has CyanogenMod on it. Will they charge me for the full cost of the phone (instead of just the deductible) when they find that my phone is rooted/has CyanogenMod on it? I don't see why they would, because which ROM it had wouldn't prevent the screen from getting cracked, but I want to know if I'll have to flash it back to factory stuff before sending it back to Asurion.
In most (all?) cases, rooting voids your warranty.  I would assume that in jurisdictions with sane laws, physical damage clearly caused by the dropping would still be covered; they can't reasonably claim that the rooting caused the damage or would prevent them from fixing it.

That said, most jurisdictions don't have sane technology laws, and most carriers seem to jump at any chance to screw people over for money.  If they find out it's rooted, I would expect them to try to charge you the full cost.  So unroot / flash stock if you can.