It happens sometimes: You’re nowhere near a charger and your BlackBerry is getting low on juice. The low battery indicator, including the annoying flashing light, have been on for a while. Eventually, you’ll get a message that your battery is too low for radio use. No, this doesn’t mean Slacker Internet radio. It means the radio that connects your phone to the cellular network. One thing I’ve noticed, at least on my BlackBerry, is that when I charge up the phone, the radio doesn’t automatically turn back on once the battery has enough juice. Here’s how to turn it back on manually. Head to your applications menu and scroll around until you see the icon for Manage Connections. The icon will obviously depend on your theme, but it usually involves an antenna. When you click on it a menu will pop up. You’ll see an unchecked box next to Mobile Network. Check it. It might take a minute, but your mobile network connection will be restored. Pretty simple, eh? I haven’t seen much about it on forums, but I was wondering: Has anyone experienced their radio turning back on automatically when there is enough battery life to sustain it? If so, leave the device model and OS version.