Turn on Bluetooth on an iMac without a keyboard or mouse? I have a 2015 iMac, that I use with a Magic Keyboard and a Magic Trackpad. Today I was changing some settings and accidentally turned off Bluetooth, disconnecting my peripherals.

Is there any way to get Bluetooth re-enabled without a USB keyboard/mouse? I don't have either a wired mouse or keyboard. Could I remote in from my iPhone somehow?

If I have to get them, will a wired keyboard be sufficient to enable Bluetooth without a mouse?
You can use the Magic Keyboard/Trackpad as wired devices by using a Lightning-to-USB cable (like the one from your iPhone).