Quick and easy fix..... go get a new one. I had every typical symptom: airplane mode, gps sometimes didnt want to work, battery life was 2-4 hours on IDLE. I've read on the sprint community forum that people were having better luck with a moment that came with cl14. I did try the upgrade but i didnt no much for my battery life but it did make the phone a bit more liveable. Anyway, best buy gave me a brand new moment out the box after having a battery replaced and because i was sill complaining. THIS IS A DIFFERENT PHONE. i get 13-14 hours with heavy use! the phone isnt boggy, no airplane mode issues so far and the proximity sensor is leaps and bounds above my last Moment. To say the least, im happy and i suggest that if you are able to, get your device replaced and stop struggling with these annoying issues. I was about to jump to the hero( best busy black tie service is the ish) but i didnt because the sales guy that owns a hero says he loved his phone but it does get boggy.... and i have to admit, as crappy as my last moment was this phone can multitask its azz off without flinching, so best of luck to you all.