You've probably heard of the B450, the hottest new flip phone from LG. It supports voice calls, text messaging, and it can take pictures with up to 1.3 million pixels. The marketing literature prominently features stock photos of elderly people smiling at each other.
F needed a new dumbphone so we brought one of these bad boys home today. I was disappointed to find that you can't sync files to it over USB. It only shows up as a USB device if the SIM card is removed, but then you're locked out of the phone. That's crazy. (Hey, it's 2015, isn't it?)
Copying contacts off the old dumbphone was easy with Wammu, which can quickly save them in any of a half-dozen file formats. But getting them onto the new one was going to be problematic. The manual says nothing about contact syncing, nor are there any menu options for it. LG offers no desktop software for it. There is even an official T-Mobile forum post claiming that contact sync is just not possible.
Wrong they are! In an act of desperation, I found that you can send it a vCard (VCF) file over Bluetooth. The phone responds by asking if you want to restore contacts from the file. What! Since this is an undocumented feature, I hereby commit it to the Interwebs.