I have been dealing with the LOS issue, but due 2 tower issues in my area & Sprint lollygagging I'm beyond my 14 day return period. I started complaining way b4 the 14 days were up, but they said they needed to make sure the towers were fixed 1st. I asked 2 switch handsets, but they said I had 2 go 2 a Repair Center 2 have my handset 'diagnosed'. I went to the Repair Center & of course all they did was a factory reset. Needless 2 say I'm still having LOS issues. Now this a.m. while dwnloading a update from the Android Market by screen goes black and the my phone reboots on its own. I soo hope this isn't going 2 turn into another Photon-type hassle! Has anyone else had random reboots?