Hey, my phone automatically downloaded a system update the other day. Since then, the alert tones for texts and email won't sound, my USB connection doesn't last more than a few seconds on my computer, all my saved texts have been wiped out and a few other choice annoyances. Is there anything I can do to fix this? I'm a very casual smartphone user and I'd rather not do anything that could potentially harm my phone further. Thanks for any and all help.