BrcmPatchRAM2 for 10.15 Catalina (Broadcom bluetooth firmware upload)

xXiGeniusXx · November 15, 2019

On 11/11/2019 at 8:48 PM, headkaze said:

The name is not so important (it's just the same rebranded hardware) it's the VID:PID that counts. Your hardware is already supported and BrcmPatchRAM3 has a newer version of the firmware you link to above anyway.

Okay but I'm getting random disconnections and reboots with this combo (BrcmBluetoothInjector.kext, BrcmFirmwareData.kext, BrcmPatchRAM3.kext) any advice?

Thank you.

headkaze · November 16, 2019

On 11/15/2019 at 3:35 AM, xXiGeniusXx said:

Okay but I'm getting random disconnections and reboots with this combo (BrcmBluetoothInjector.kext, BrcmFirmwareData.kext, BrcmPatchRAM3.kext) any advice?

Thank you.

My advice would be to check your USB port configuration.

headkaze · November 16, 2019

On 11/11/2019 at 4:06 AM, xXiGeniusXx said:

I also don't know how to get a log from the console for this! any pointers appreciated.

log show --predicate 'process == "kernel" AND (eventMessage CONTAINS[c] "brcm")' --style syslog --source --last boot

Edited November 16, 2019 by headkaze

hh3003it · November 18, 2019

Hi everyone,

T_T

Could you please help me?

I spend 3 days on this problem.

I can not active usb bluetooth (Broadcom 0a5c_21e8). My hackintosh always use internal bluetooth (Intel). I attached some screenshots, you can see for detail.

My hackintosh:

Catalina 10.15.1

Asus VivoBook S510U

I tried:

1. Combo1:

+ Copy [BrcmBluetoothInjector.kext, BrcmFirmwareData.kext, BrcmPatchRAM3.kext] to EFI/CLOVER/kexts/Other

+ Repair permissions and caches

2. Combo2 - option1:

+ Install [BrcmBluetoothInjector.kext, BrcmFirmwareRepo.kext] to L/E (by Hackintool) & copy [BrcmPatchRAM3.kext] to EFI/CLOVER/kexts/Other

+ Repair permissions and caches

3. Combo2 - option2

+ Install [BrcmBluetoothInjector.kext, BrcmFirmwareRepo.kext, BrcmPatchRAM3.kext] to L/E (by Hackintool)

+ Repair permissions and caches

Also, I tried:

sudo nvram bluetoothHostControllerSwitchBehavior=never -> bluetooth: not available

sudo nvram bluetoothHostControllerSwitchBehavior=always -> internal bluetooth (intel)

Could you please tell me some other suggestions? T_T

Thank you so much.

P/S: Sorry for my English.

Edited November 18, 2019 by hh3003it

arnolix · November 18, 2019

OpenCore 0.5.2 bootloader can't working, help me. My Machine: Amd 3700X + Rx 5700 + Msi b450m martor max

anonymousnbs · November 18, 2019

On 11/12/2019 at 1:43 AM, Michelinu said:

Hi, I'm currently running macOS Catalina 10.15.1. I'm using an Asus ROG Strix Z390-I with DW1820A (model 0VW3T3).

Wi-Fi was working OOB, BT didn't.

By installing BrcmFirmwareData+BrcmBluetoothInjector+BrcmPatchRAM3 kexts, now BT works but only for Continuity/Handoff. Other BT devices are detected but it doesn't connect.

I also noticed that if I boot Windows and then I reboot in macOS, firmware is upgraded to 5799 and BT works.

Can you help me?
Thank you

Make sure usb port patch is correctly.

I used DW1820A without problem.

Michelinu · November 18, 2019

1 hour ago, anonymousnbs said:

Make sure usb port patch is correctly.

I used DW1820A without problem.

Yes, I made a custom SSDT for USBInjectAll but I also tried a kext built by another person for this motherboard.

Now I'm on macOS Catalina 10.15.2 Public Beta 1 and it seems more stable. For now it's working, I don't know if it will continue to work in the next days..

Edited November 18, 2019 by Michelinu

anonymousnbs · November 19, 2019

When patched usb port is correctly, Bluetooth is working forever.

nhimanninh · November 19, 2019

52 minutes ago, anonymousnbs said:

When patched usb port is correctly, Bluetooth is working forever.

Can you guide me fix usb port. I couldn't find any solution for my bluetooth in DW1560. Thanks.

Michelinu · November 19, 2019

6 hours ago, anonymousnbs said:

When patched usb port is correctly, Bluetooth is working forever.

Now it's not anymore working. USB is patched correctly.

The problem is that also Wi-Fi sometimes stop working. I have to turn off the power supply for some seconds in order to boot macOS/Windows.

keliang · November 22, 2019

I compile the driver from https://github.com/acidanthera/BrcmPatchRAM. the kexts is:BrcmBluetoothInjector.kext,BrcmFirmwareData.kext, BrcmPatchRAM3.kext. put in Clover/Kexts/Other. My OS version is 10.15.1 the Wifi is worked and BT can be Identified; But can not search any device.

here is the DW1830 info that cp from :

BCM920703 Bluetooth 4.1：

产品ID： 0x6410

厂商ID： 0x0a5c (Broadcom Corp.)

版本： 1.12

序列号： 40490FFEDDB4

速度：最高可达12 Mb/秒

生产企业： Broadcom Corp

位置ID： 0x14600000 / 1

可用电流(mA)： 500

所需电流(mA)： 0

额外的操作电流(mA)： 0

内建：是

Apple蓝牙软件版本： 7.0.1f1

硬件、功能和设置：

名称： keliang的iMac

地址： 40-49-0F-FE-DD-B4

支持低功耗蓝牙：是

支持“接力”：是

支持智能热点：是

生产企业： Broadcom

传输： USB

芯片组： 20703A1

固件版本： v5 c4518

蓝牙电源：打开

可被发现：打开

可连接：是

自动寻找点：打开

远程唤醒：打开

供应商ID： 0x0A5C

产品ID： 0x6410

蓝牙核心规范： 4.1 (0x7)

HCI修正版： 0x11A6

LMP版本： 4.1 (0x7)

LMP子版本： 0x2105

设备类型（主要）： Computer

设备类型（完整）： Mac Desktop

复合类设备： 0x380104

设备类（主要）： 0x01

设备类（次要）： 0x01

服务类： 0x1C0

自动寻找键盘：打开

服务：

蓝牙文件传输：

其他设备可以浏览的文件夹： ~/Public

当接收项目时：接受所有文件而不发出警告

状态：已停用

蓝牙文件交换：

存放已接受项目的文件夹： ~/Downloads

当接受其他项目时：存储到位置

当接收项目时：接受所有文件而不发出警告

状态：已停用

蓝牙互联网共享：

状态：已停用

传入串口：

Bluetooth-Incoming-Port：

RFCOMM通道： 3

需要认证：否

here is system log

Timestamp (process)[PID]
2019-11-22 11:18:01.829716+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::init(OSDictionary*)> AirPort_BrcmNIC::init AirPortFamily_kexts-1565.4 "AirPortFamily_kexts-1565.4" Oct 17 2019 16:38:55
2019-11-22 11:18:01.829740+0800 localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 0.829738: AirPort_Brcm43XX:probe:, this[0x9ad83efa2b4118b] score[2048]
2019-11-22 11:18:01.829750+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::init(OSDictionary*)> AirPort_BrcmNIC::init AirPortFamily_kexts-1565.4 "AirPortFamily_kexts-1565.4" Oct 17 2019 16:38:55
2019-11-22 11:18:01.829759+0800 localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 0.829758: AirPort_Brcm43XX:probe:, this[0x9ad83efa2b4818b] score[1400]
2019-11-22 11:18:02.049200+0800 localhost kernel[0]: (kernel) BrcmPatchRAM: Version 2.5.0 starting on OS X Darwin 19.0.
2019-11-22 11:18:11.265779+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::init(OSDictionary*)> AirPort_BrcmNIC::init AirPortFamily_kexts-1565.4 "AirPortFamily_kexts-1565.4" Oct 17 2019 16:38:55
2019-11-22 11:18:11.265809+0800 localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 11.060355: AirPort_Brcm43XX:probe:, this[0x9ad83efa55aa18b] score[2048]
2019-11-22 11:18:11.265816+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::init(OSDictionary*)> AirPort_BrcmNIC::init AirPortFamily_kexts-1565.4 "AirPortFamily_kexts-1565.4" Oct 17 2019 16:38:55
2019-11-22 11:18:11.265874+0800 localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 11.060420: AirPort_Brcm43XX:probe:, this[0x9ad83efa2d8c18b] score[1400]
2019-11-22 11:18:11.473160+0800 localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 11.267705: BRCM tunables:
2019-11-22 11:18:11.678541+0800 localhost kernel[0]: (kernel) BrcmPatchRAM: Loaded compressed embedded firmware for key "BCM20703A1_001.001.005.0214.0422_v4518".
2019-11-22 11:18:11.678984+0800 localhost kernel[0]: (kernel) BrcmPatchRAM: Decompressed firmware (43444 bytes --> 109080 bytes).
2019-11-22 11:18:11.679492+0800 localhost kernel[0]: (kernel) BrcmPatchRAM: Firmware is valid IntelHex firmware.
2019-11-22 11:18:11.780689+0800 localhost kernel[0]: (kernel) BrcmPatchRAM: [0a5c:6410]: USB [40490FFEDDB4 v274] "BCM920703 Bluetooth 4.1" by "Broadcom Corp"
2019-11-22 11:18:11.784664+0800 localhost kernel[0]: (kernel) BrcmPatchRAM: [0a5c:6410]: Firmware upgrade not needed.
2019-11-22 11:18:11.784761+0800 localhost kernel[0]: (kernel) BrcmPatchRAM: Processing time 0.105 seconds.
2019-11-22 11:18:11.785291+0800 localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 11.579835: AirPort_Brcm43xx::syncPowerState: WWEN[disabled]
2019-11-22 11:18:11.785335+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::logDebug(char const*, ...)> AirPort_BrcmNIC::getSSIDData(): Get failure: APPLE80211_IOC_SSID: 6
2019-11-22 11:18:14.958477+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211VirtualInterface::init(IO80211Controller*, ether_addr*, unsigned int, char const*)> IO80211VirtualInterface::AirPort_BrcmNIC_P2PInterface::init name <p2p0> role 1
2019-11-22 11:18:14.958757+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211P2PInterface::init(IO80211Controller*, ether_addr*, unsigned int, char const*)> AirPort_BrcmNIC_P2PInterface::init <p2p> role 1
2019-11-22 11:18:14.959156+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211VirtualInterface::init(IO80211Controller*, ether_addr*, unsigned int, char const*)> IO80211VirtualInterface::AirPort_BrcmNIC_P2PInterface::init name <awdl0> role 4
2019-11-22 11:18:14.959161+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211P2PInterface::awdlAttachToBpf()> AirPort_BrcmNIC_P2PInterface::awdlAttachToBpf name <awdl0> role 4 successful attach to bpf type 147
2019-11-22 11:18:14.961607+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211P2PInterface::init(IO80211Controller*, ether_addr*, unsigned int, char const*)> AirPort_BrcmNIC_P2PInterface::init <awdl> role 4
2019-11-22 11:32:05.595507+0800 localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::logDebug(char const*, ...)> AirPort_BrcmNIC::getSSIDData(): Get failure: APPLE80211_IOC_SSID: 6

anyone can help me to fix this out? thx

Edited November 22, 2019 by keliang

takeawaydave · November 23, 2019

Thanks Devs!

Upgraded to Catalina yesterday - BrcmPatchRAM3 V2.3.0d3 set of kexts seems to work Ok for me however upgrading to 2.5 didn't get the DW1560 running after cold restart.

Handoff seems to work ok. However couldn't seem to get Sidecar working not sure if that's BT related but probably off point for this thread.

Edited November 23, 2019 by takeawaydave

sash11 · November 24, 2019

Finally got Bluetooth working on my Dell 1550 card on latest Catalina 10.15.1 build. Put these three kext in Other folder:
BrcmBluetoothInjector.kext

BrcmFirmwareData.kext

BrcmPatchRAM3.kext

image.png.7ee34eae0baf63fb6efffc7f782614b9.png

Hologos · November 26, 2019

On 11/10/2019 at 5:01 PM, Mieze said:

As version 2.5.0 includes updated firmware files for all supported devices, it might be a firmware related problem. Can anybody confirm this issue with version 2.5 using a DW1560?

Mieze

On 11/23/2019 at 7:00 AM, takeawaydave said:

Thanks Devs!

Upgraded to Catalina yesterday - BrcmPatchRAM3 V2.3.0d3 set of kexts seems to work Ok for me however upgrading to 2.5 didn't get the DW1560 running after cold restart.

Handoff seems to work ok. However couldn't seem to get Sidecar working not sure if that's BT related but probably off point for this thread.

Seems like other user of DW1560 has the same problem. Can you guide me how to help you identify the problem?

Thank you

Mieze · November 26, 2019

The DW1560 is my test device and it's working 100% reliably on my Dell Inspiron 13 5370. If it doesn't work on your system, please make sure that your USB ports are configured properly as this is the most frequent reason for BT related issues.

Ravenstein · November 28, 2019

@headkaze:

My DW1550 consisted BT is USB\VID_413C&PID_8143\, tried your method as below

all kexts from your repo (v.2.5.0) into /L/E

- BrcmBluetoothInjector.kext

- BrcmFirmwareData.kext

- BrcmPatchRAM3.kext

But not working ( BT turns on, but firmware is v14 c4096 = not loaded)

2.png.c2ccde9dc42b72b730fa03f29849d2c6.png

Checking kextstat -i |grep -i brcm :

... as.lvs1974.AirportBrcmFixup (2.0.4) 88D30B81-6FB9-3109-9692-B3E7192CF04A <42 18 13 8 6 5 3 2 1>
... com.apple.driver.AirPort.BrcmNIC (1400.1.1) E7D99C63-B581-3CFF-B979-8EEA0D08BAE0 <84 83 82 81 18 13 8 7 6 5 3 1>
... com.apple.driver.AirPort.Brcm4360 (1400.1.1) 5B3F9150-E4F1-3E8D-AED6-A8C541B67479 <84 83 82 18 13 8 7 6 5 3 1>
... as.acidanthera.BrcmFirmwareStore (2.5.0) E0839E7B-E8F1-30F0-9447-DDEA68AFAA0B <6 5 3>
... as.acidanthera.BrcmPatchRAM3 (2.5.0) A6812F3E-DF9B-36F3-966B-FE592C6EBFDA <158 27 6 5 3 1>

BrcmPatchRam3.kext loaded???

Checking BrcmPatchRAM3, my BT module is implemented:

3.png.1967f57ef36c7b9eb609fae118743dff.png

But why FW not loaded?

w.r.t. USB port limitation/reassignment, my model doesn't need extra USB ports(BT is on HS04), thus no extra SSDT-USB.aml, is that OK?

please help.

BTW: how do you define the value for IOProbeScore, e.g. I saw you have sometime 3000 or 4000:

          <key>IOProbeScore</key>
            <integer>4000</integer>

Does it need a recompiling or just edit the org. BrcmPatchRAM2.kext/info.plist?

many thanks!

4.png.c0b0ee36d0ee1e92496eda798a9f4d8e.png

Edited December 1, 2019 by Ravenstein

LockDown · November 28, 2019

5 hours ago, Ravenstein said:

Does it need a recompiling or just edit the org. BrcmPatchRAM2.kext/info.plist?

Just edit the plist.

yilang · November 30, 2019

@headkazecan found and "connect "the earpots , but acutually doesn't work at all ~

and wake from sleep, then sometimes failed to reconnect the bt devices ~

oneghost · December 2, 2019

Hello. I have some issues with Dell DW1830. Im using BrcmPatchRam3,

BrcmFirmwareData and BrcmBluetoothInjector. Bluetooth works well as long as I

have WiFi disabled. When WiFi is enabled, then every time system is scanning

for networks, mouse is being freezed for about a second. This makes using the

mouse very unplesent. Other issue is that I get the list of avaliable WiFi

networks, but I cannot connect to any. After few seconds I just get a

password window again. Do you have any idea what can cause this?

ivan_htp · December 5, 2019

Hi guys,

My bluetooth stopped working from nowhere since yesterday when I was using mojave. I updated to Catalina and did exactly what the first post says (even my bt chipset, my vendor and product ids are the same but I still get "Not available" in bluetooth. I also get no FW Loaded in hackintool using brcmpatch3 (I manage to get it checked using brcmpatchram2 but it made no difference). Wifi is normal though..

I have the bt module shown on USB on system report but the bluetooth section is blank.

Does someone have any idea? I see a lot of people getting it to work and I'm being afraid it could be a problem in my board. :(

sash11 · December 10, 2019

On 12/5/2019 at 8:59 PM, ivan_htp said:

Hi guys,

My bluetooth stopped working from nowhere since yesterday when I was using mojave. I updated to Catalina and did exactly what the first post says (even my bt chipset, my vendor and product ids are the same but I still get "Not available" in bluetooth. I also get no FW Loaded in hackintool using brcmpatch3 (I manage to get it checked using brcmpatchram2 but it made no difference). Wifi is normal though..

I have the bt module shown on USB on system report but the bluetooth section is blank.

Does someone have any idea? I see a lot of people getting it to work and I'm being afraid it could be a problem in my board.

Check what you have in /Library/Extensions

Mount root partition in write mode. Remove bluetooth related kexts, rebuild cache, reboot. Install three kexts, rebuild cache and reboot. See if that helps.

Kexts are:

BrcmBluetoothInjector.kext

BrcmFirmwareData.kext

BrcmPatchRAM3.kext

Edited December 10, 2019 by sash11

KEKEHK · December 12, 2019

I AM VERY GLAD TO GET IT IN MY GIGANT B85

WingmanNZ · December 13, 2019

Hey guys, I am currently running macOS 10.15.2 with a DW 1820A (CN-096JNT) (Image attached) and cannot get Bluetooth to connect to devices (Handoff and Continuity appear to work though)

I currently have the following Kexts installed:

AirportBrcmFixup.kext (2.0.4)
BrcmBluetoothInjector.kext (2.5.0)
BrcmFirmwareData.kext (2.5.0)
BrcmPatchRAM3.kext (2.5.0)

here is a log of last boot that shows that the firmware upgrade is not needed.

❯ log show --last boot | grep -i 'brcmf\|brcmp'
2019-12-13 08:45:00.810589+1300 0x2e1      Error       0x0                  105    0    kextd: (IOKit) [com.apple.kext:kextlog] Unable to determine realpath for /Library/Extensions/BrcmFirmwareData.kext - failing.
2019-12-13 08:45:01.102734+1300 0x2e1      Error       0x0                  105    0    kextd: (IOKit) [com.apple.kext:kextlog] Unable to determine realpath for /Library/Extensions/BrcmFirmwareData.kext - failing.
2019-12-13 08:45:01.176524+1300 0x2e1      Error       0x0                  105    0    kextd: (IOKit) [com.apple.kext:kextlog] Unable to determine realpath for /Library/Extensions/BrcmFirmwareData.kext - failing.
2019-12-13 08:45:01.197461+1300 0x2e1      Error       0x0                  105    0    kextd: (IOKit) [com.apple.kext:kextlog] Unable to determine realpath for /Library/Extensions/BrcmFirmwareData.kext - failing.
2019-12-13 08:45:01.207153+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmFirmwareData) BrcmPatchRAM: Loaded compressed embedded firmware for key "BCM4350C5_003.006.007.0222.4689_v8785".
2019-12-13 08:45:01.207398+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmFirmwareData) BrcmPatchRAM: Decompressed firmware (12582 bytes --> 31740 bytes).
2019-12-13 08:45:01.207621+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmFirmwareData) BrcmPatchRAM: Firmware is valid IntelHex firmware.
2019-12-13 08:45:01.307830+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmPatchRAM3) BrcmPatchRAM: [0a5c:6412]: USB [C8FF2878CA0C v274] "BCM2045A0" by "Broadcom Corp"
2019-12-13 08:45:01.314413+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmPatchRAM3) BrcmPatchRAM: [0a5c:6412]: Firmware upgrade not needed.
2019-12-13 08:45:01.314506+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmPatchRAM3) BrcmPatchRAM: Processing time 0.106 seconds.

System Profiler shows the following info

Name:                         	  Office Mac mini
Address:                          C8-FF-28-78-CA-0C
Bluetooth Low Energy Supported:   Yes
Handoff Supported:                Yes
Instant Hot Spot Supported:       Yes
Manufacturer:                     Broadcom
Transport:                        USB
Chipset:                          Unknown (6e)
Firmware Version:                 v7 c4689
Bluetooth Power:                  On
Discoverable:                     Off
Connectable:                      Yes
Auto Seek Pointing:               On
Remote wake:                      On
Vendor ID:                        0x0A5C
Product ID:                       0x6412
Bluetooth Core Spec:              4.1 (0x7)
HCI Revision:                     0x1251
LMP Version:                      4.1 (0x7)
LMP Subversion:                   0x6607
Device Type (Major):              Computer
Device Type (Complete):           Mac Portable
Composite Class Of Device:        0x38010C
Device Class (Major):             0x01
Device Class (Minor):             0x03
Service Class:                    0x1C0
Auto Seek Keyboard:               On

Hackintool shows the following for the PCI info

VID  DID  SVID SDID Vendor Name                    Device Name                                        Class Name           SubClass Name        IOReg Name      IOReg IOName    Device Path
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
14E4 43A3 106B 0022 Broadcom Inc. and subsidiaries BCM4350 802.11ac Wireless Network Adapter          Network controller   Network controller    PCI0.RP03.ARPT pci14e4,43a3    PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)

Does anyone have any diagnostic steps I can take to try and get Bluetooth devices to connect?

Edited December 13, 2019 by WingmanNZ

MICKHAEL · December 13, 2019

10 hours ago, WingmanNZ said:

Hey guys, I am currently running macOS 10.15.2 with a DW 1820A (CN-096JNT) (Image attached) and cannot get Bluetooth to connect to devices (Handoff and Continuity appear to work though)

I currently have the following Kexts installed:

AirportBrcmFixup.kext (2.0.4)
BrcmBluetoothInjector.kext (2.5.0)
BrcmFirmwareData.kext (2.5.0)
BrcmPatchRAM3.kext (2.5.0)

here is a log of last boot that shows that the firmware upgrade is not needed.


❯ log show --last boot | grep -i 'brcmf\|brcmp'
2019-12-13 08:45:00.810589+1300 0x2e1      Error       0x0                  105    0    kextd: (IOKit) [com.apple.kext:kextlog] Unable to determine realpath for /Library/Extensions/BrcmFirmwareData.kext - failing.
2019-12-13 08:45:01.102734+1300 0x2e1      Error       0x0                  105    0    kextd: (IOKit) [com.apple.kext:kextlog] Unable to determine realpath for /Library/Extensions/BrcmFirmwareData.kext - failing.
2019-12-13 08:45:01.176524+1300 0x2e1      Error       0x0                  105    0    kextd: (IOKit) [com.apple.kext:kextlog] Unable to determine realpath for /Library/Extensions/BrcmFirmwareData.kext - failing.
2019-12-13 08:45:01.197461+1300 0x2e1      Error       0x0                  105    0    kextd: (IOKit) [com.apple.kext:kextlog] Unable to determine realpath for /Library/Extensions/BrcmFirmwareData.kext - failing.
2019-12-13 08:45:01.207153+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmFirmwareData) BrcmPatchRAM: Loaded compressed embedded firmware for key "BCM4350C5_003.006.007.0222.4689_v8785".
2019-12-13 08:45:01.207398+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmFirmwareData) BrcmPatchRAM: Decompressed firmware (12582 bytes --> 31740 bytes).
2019-12-13 08:45:01.207621+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmFirmwareData) BrcmPatchRAM: Firmware is valid IntelHex firmware.
2019-12-13 08:45:01.307830+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmPatchRAM3) BrcmPatchRAM: [0a5c:6412]: USB [C8FF2878CA0C v274] "BCM2045A0" by "Broadcom Corp"
2019-12-13 08:45:01.314413+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmPatchRAM3) BrcmPatchRAM: [0a5c:6412]: Firmware upgrade not needed.
2019-12-13 08:45:01.314506+1300 0x1a3      Default     0x0                  0      0    kernel: (BrcmPatchRAM3) BrcmPatchRAM: Processing time 0.106 seconds.

System Profiler shows the following info


Name:                         	  Office Mac mini
Address:                          C8-FF-28-78-CA-0C
Bluetooth Low Energy Supported:   Yes
Handoff Supported:                Yes
Instant Hot Spot Supported:       Yes
Manufacturer:                     Broadcom
Transport:                        USB
Chipset:                          Unknown (6e)
Firmware Version:                 v7 c4689
Bluetooth Power:                  On
Discoverable:                     Off
Connectable:                      Yes
Auto Seek Pointing:               On
Remote wake:                      On
Vendor ID:                        0x0A5C
Product ID:                       0x6412
Bluetooth Core Spec:              4.1 (0x7)
HCI Revision:                     0x1251
LMP Version:                      4.1 (0x7)
LMP Subversion:                   0x6607
Device Type (Major):              Computer
Device Type (Complete):           Mac Portable
Composite Class Of Device:        0x38010C
Device Class (Major):             0x01
Device Class (Minor):             0x03
Service Class:                    0x1C0
Auto Seek Keyboard:               On

Hackintool shows the following for the PCI info


VID  DID  SVID SDID Vendor Name                    Device Name                                        Class Name           SubClass Name        IOReg Name      IOReg IOName    Device Path
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
14E4 43A3 106B 0022 Broadcom Inc. and subsidiaries BCM4350 802.11ac Wireless Network Adapter          Network controller   Network controller    PCI0.RP03.ARPT pci14e4,43a3    PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)

Does anyone have any diagnostic steps I can take to try and get Bluetooth devices to connect?

i have exactly the same card/ I managed to get working, using BrcmPatchRAM2.kext. and yes, on Catalina. thru, It have some interferences with wifi.

junaed.rx · December 13, 2019

15 hours ago, WingmanNZ said:

Hey guys, I am currently running macOS 10.15.2 with a DW 1820A (CN-096JNT) (Image attached) and cannot get Bluetooth to connect to devices (Handoff and Continuity appear to work though)

Try Kexts from the below link. They are modified for DW 1820A. Works great on my system.

https://osxlatitude.com/forums/topic/11540-dw1820a-the-general-troubleshooting-thread/?do=findComment&comment=92833

BrcmPatchRAM2 for 10.15 Catalina (Broadcom bluetooth firmware upload)

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