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<< Solved >> BCM943602CS Bluetooth strange behavior at Monterey 12.1

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Hi there,

Having upgraded to 12.1, my bluetooth cannot be pair some devices, such as my Sony BT headset or my iphone. However, for bluetooth keyboard or mouse, it can be pair without problem. Can anyone advise how to solve this issue?

My config is below:
1. BCM943602CS PCI card
2. BrcmPatchRAM3, BcrmFiremwareData, and BlueToolFixup @ 2.61

At Big Sur, I can be pair any devices without any issue.

Is it better to change to Finvi T919 BCM94360CD for Monterey better compatibility?

Thanks,
Louie
 

Edhawk

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Apple changed the Bluetooth stack in MacOS Monterey. This is causing issues for a number of BT cards. However, most natively supported cards, such as your BCM943602CS work without any issues.

Why when you have a natively supported WiFi/BT card are you using those third party kexts?

I have a couple of systems using the same Broadcom WiFi/BT card and all I use is AirportBrcmFixup.kext. I only use that kext so I can set the country code as GB, otherwise my WiFi is set as DE (Germany)! I don't need to use any Bluetooth kexts, as it is a natively supported Apple Card.
 
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Now, I am only using AirportBrcmFixup.kext for my wifi/bt card.
For the wifi part, I do not have any issue.
For the BT part, it can be connected to a BT keyboard and mouse. However, if I try to pair my iphone or BT headphone, it always prompt out the failing error on pairing.
 

Edhawk

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I refer you to my previous post.

Apple changed the Bluetooth stack in MacOS Monterey. This is causing issues for a number of BT cards.

Your bluetooth is working, if as you said the keyboard and mouse are connecting. The iPhone and headphones not working may be a bug Apple is currently working on, or not.

You shouldn't need any additional kexts or patches to get your BT devices working. So adding any will only cause you more issues.
 
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Thanks for your advice.

Since, some people had mentioned at other forum that Monterey only support on BCM04360CD.
Thus, I would like to know whether my BCM943602CS is also supported on Monterey.

** Airdrop is also ok, only has the problem on connecting to other BT headset as well as my iphone

Btw, from Hackintool, I cannot see any BT info, but, I can get the info. at system info.

Is it normal? I forgot it has the same result at Big Sur before.

1643080466586.png


1643080485350.png
 
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airdrop is only working one way for me? with the fenvi t910, wats all that about :D:D::D
 
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If you have the BCM943602CS, you don't need any kext. It is supported natively. I would start by removing all the kext unless you really need it. (e.g. Country Code).

The BCM943602CS requires 3 antennas. I believe the middle/center one is for Bluetooth. Make sure the antenna is plugged in. Check the bluetooth stats from the dropdown menu (Hold Option while clicking the bluetooth icon). The the RSSI level should be less than ~60-70.

To me it sounds like a signal issue.
 
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it states in mac os as fenvi t919 bcm 20702bo
 
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BCM94360CD on the box, mac os must be missreporting​


also if it matters, I still have ax210 intel card in there somewhere, but ive removed the kexts for it becuase it was not working, and it works just one way, so i can get files from my actual macbook but cant send back! cheers!!
 
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If you have the BCM943602CS, you don't need any kext. It is supported natively. I would start by removing all the kext unless you really need it. (e.g. Country Code).

The BCM943602CS requires 3 antennas. I believe the middle/center one is for Bluetooth. Make sure the antenna is plugged in. Check the bluetooth stats from the dropdown menu (Hold Option while clicking the bluetooth icon). The the RSSI level should be less than ~60-70.

To me it sounds like a signal issue.
RSSI is -46
 
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