I received an Apple Pencil a few days ago, paired it, and all was fine. About two days ago I got a battery warning but didn't bother charging the pencil because I wasn't using it. Yesterday I went to use it and of course it was dead. I plugged it into the bottom of the iPad and let it charge for a few minutes. After unplugging it, the damned thing would not keep a connection. The Bluetooth symbol would just go grey. I thought it was a pairing issue, so I told the iPad to forget the device. Now it won't pair at all. I even did a software restore on the iPad to see if that was the issue. Does anyone have any suggestions?