i got a bad feeling my nexus is screwed. ive flashed backups, changed radios,everything can think of. my girl friends bolt work great, i get strong 4g for about 30secs. tests 12meg down, -90something db which is great for me. then bam, nothing at all for as long as i leave it along. cycle power and its back for a bit. i really dont wanna deal with a replacement phone. i even called to renew the prl. nothing.