Bluetooth Can't Be Turned Off.

Not really, nobody has told me why can't I turn off the bluetooth, they're just keep repeating the same thing "if you have any bluetooth mouse or keyboard"

I have told you several times. You cannot turn off Bluetooth unless your Mac detects that you have a keyboard and mouse connected. However you have your keyboard and mouse connected is not being detected by your Mac as having a keyboard and mouse connected. A surefire way to make sure it knows they are connected is to physically connect your keyboard and mouse to your Mac with their USB cables. Once done and you have turned off Bluetooth, you can connect them how you have it set up, now.

You can’t pair an iPhone over Bluetooth. Various things will use Bluetooth automatically between macOS and iOS, but you cannot manually connect them.

The prompt is because you have a Bluetooth keyboard, mouse, or Trackpad, and not wired by USB.

What does usb receiver has to do with Bluetooth not turning off? and I've also tried removing the receiver and connect a wired mouse, It still didn't let me turn off the bluetooth.

You must have a wired usb keyboard and a wired USB mouse directly connected to the Mac in order for it to allow you to disable Bluetooth. As it stated, you would not be able to control your Mac without having Bluetooth on unless you actually have a keyboard AND mouse directly connected to the Mac.

If you connect both a Mouse and Keyboard to the USB ports on your Mac, you should be able to disable Bluetooth. If not, I don't know what other requirements there are.

Sam2s wrote:

it shows there that Discoverable Mode is Off, does anybody have any idea how do I turn it on? also, It says Discoverable is Off.

To turn on "Discoverable", enable Bluetooth Sharing in the Sharing settings.

Sam2s wrote:

But my Mac at least should detect my iPhone, it doesn't.

I also can't turn it off, I don't even have any devices connected to bluetooth, so

"Detect" how, exactly? What are you trying to do with your iPhone and your Mac? If you can clarify that, we may be able to give you the right answers.

There are many things you can do from your Mac - e.g. annotate a Mac screenshot using your iPhone, scan a document into Notes, take a photo and insert it directly into a Pages document, and so much more.

All that is required for this to work:

your mac and iPhone should both be connected to the same Wifi network, and both have Bluetooth turned on;

they should both be logged in to iCloud with the same Apple id.

No Bluetooth pairing required, or even possible, as others have said.

FWIW, since you have a USB Keyboard and Mouse connected, just click the OK button in your screen shot. The other option is, just leave Bluetooth on and disable Discoverable if you like. It doesn't hurt anything to leave Bluetooth on.

Sam2s wrote:

Are you trolling or what? It's a wireless mouse that comes with a USB connector, and I said, I tried removing it and connected a wired mouse, it still didn't let me turn off the Bluetooth.

If you have a USB keyboard connected directly to a port on your Mac, and you have a USB mouse connected directly to a port on your Mac, at the same time, no hubs, no dongles, then there is some other restriction that won't allow you to turn off Bluetooth or your Mac doesn't recognize them as being sufficient to control your Mac.

Sam2s wrote:

Are you XXXXX ? Redacted by me " It's a wireless mouse that comes with a USB connector, and I said, I tried removing it and connected a wired mouse, it still didn't let me turn off the Bluetooth.

User wrote " they're just keep repeating the same thing "if you have any bluetooth mouse or keyboard" and I've said it in the first post that I don't have any bluetooth devices connected

Which of the two above statements are true and accurate

Ok but how do I turn it off?

You physically connect a keyboard and mouse to the Mac. I already told you that your usb receiver is not recognized as either a mouse or a keyboard.

A Mac Mini does come with a builtin Trackpad, Keyboard or Mouse not does it have a Display ( Monitor )

How are you connecting a Keyboard, Mouse or External Trackpad to control this Computer ?

Do you use Only all USB Keyboard, Mouse

In regards to Pairing you iPhone to Computer

Suggest reading from this article from Apple as it should provide information on use Handoff between different devices

Use Handoff to continue tasks on your other devices

IMHO - There has been sufficient advise offered, from at least 4 -5 different Contributors, for the User ( you ) to make an informed and educated choice what remedial actions are  required for this computer.

The suggestions have been put forth on a volunteer basis, in good faith and in the best interests of the computer.

If the a previous link was overlooked and that does happen here it is again Use Handoff to continue tasks on your other devices - Apple Support (CA)

OMG, I've said it hundred times already, I don't have any bluetooth keyboard or mouse, they're all connected with usb ports..

You said you connected them through some USB receiver. You must physically connect both directly to the Mac USB port, not through some other dongle.