The clear screen to my Motorola Krave broke off

Try with a similar phone to confirm if its the headphone that is faulty of the port where it goes into your phone.

go to recent calls (call center)/ option/delete all

It sounds like your phone has a internal problem, take your phone to a Verizon Store or call Tech Support and see if they have a update or fix for it.

oh,ok. take it to your nearest cellphone repair shop. there are high chances, it can already be damaged. i would advise you to first open up the phone and let it dry. take it to the repair shop and let the repair guy check what's spoil in the phone's hardware. keep me updated.

seems like your phone needs an update.take it to your nearest hone repair shop and have them update the phone.

no you cant calibrate it

To unlock Motorola Krave ZN4, go through the site http://www.mobile-unlocker.com/unlock-your-phone/rs2wp2/
it has the best unlocking solutions.

well take your battery out and hold the power button down for about 30 seconds
thats called a hard reset

sometimes you need a memory card to sync or download music to phones... hope this helped

Not correct you can master reset the phone. As if your making a call type in ##7762726 then hit call. Screen will blink then type in 6 zeros. Then goto master reset. Anymore help just ask