I've been given an iPhone6 and am having trouble connecting it
to my Pi4. Using the USB cable seems to disrupt the USB boot drive,
BlueTooth on the Pi4 seems to be disabled or not working right.

Bluetooth does appear in dmesg output:
bob@raspberrypi:~ $ dmesg | grep -i bluetooth
[ 29.981129] Bluetooth: Core ver 2.22
[ 29.981216] Bluetooth: HCI device and connection manager initialized
[ 29.981572] Bluetooth: HCI socket layer initialized
[ 29.981589] Bluetooth: L2CAP socket layer initialized
[ 29.981609] Bluetooth: SCO socket layer initialized
[ 30.239344] Bluetooth: HCI UART driver ver 2.3
[ 30.239355] Bluetooth: HCI UART protocol H4 registered
[ 30.239423] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 30.239560] Bluetooth: HCI UART protocol Broadcom registered
[ 30.889215] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 30.889224] Bluetooth: BNEP filters: protocol multicast
[ 30.889238] Bluetooth: BNEP socket layer initialized
[ 31.098314] Bluetooth: RFCOMM TTY layer initialized
[ 31.098336] Bluetooth: RFCOMM socket layer initialized
[ 31.098356] Bluetooth: RFCOMM ver 1.11

But, there's no bluetooth connection icon in the main menu bar
and attempts to use command line tools like hciconfig don't see
the iphone even when the iphone says it's discoverable.

Earlier versions of RaspiOS did IIRC work with bluetooth,
has something changed?

Thanks for reading,

bob prohaska
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