Weird issues with BCM94352Z on Catalina 10.15.5

[littlegreen]

Hi There !

I am having some weird issues with my WiFi + BT combo card. It is a BCM94352Z

 

BT:

BCM20702A0:

  Product ID: 0x216f

  Vendor ID: 0x0a5c  (Broadcom Corp.)

  Firmware Version: v14 c5668

WiFI:

DW1560

  Card Type: AirPort Extreme  (0x14E4, 0x19)

 

This is running on a HP ce140na laptop with Intel i5-8250U. I have my USBs set up correctly with a SSDT, card is recognized, wifi and bluetooth function "correctly" - I have FaceTime running OK, can place phone calls from the laptop, handoff works, so does AirDrop, however:

 

1. Bluetooth mouse will occasionally pause for a few seconds - and then "catch up" to my movements, as if it freezes - but where I move and click it buffers and does it all at once afterwards. During this time, touchpad moves OK. 

2. Same mouse works very well with its USB dongle (MX Master 3)

3. Apple bluetooth keyboard works, but stutters like the mouse.

4. Sidecar will only work if my tablet is connected via USB-C cable and has wifi disconnected on the tablet.

5. I cannot "import from iPhone or iPad" - it inevitably times out.

6. I cannot join a personal hotspot - even though it is identified - it just fails everytime. (Enabling hotspot manually on the phone and joining manually on the laptop works)

7. iPad and iPhone sync OTA

 

WiFi works brilliantly and I have no issues with range, signal strength, etc. 

E/C/K/O folder contains:

  BrcmBluetoothInjector.kext

  BrcmFirmwareData.kext

  BrcmFirmwareRepo.kext

  BrcmPatchRAM3.kext

  AirportBrcmFixup.kext

All latest version. Removing either of these breaks either WiFi or BT completely.

 

I am running Catalina 10.15.5, and a MacBookPro15,2 SMBIOS. 

Mouse, keyboard, phone and tablet updated to latest software/firmware.

 

Hackingtool, with grep "brcm"

Timestamp                       (process)[PID]    
2020-07-27 08:32:11.944749+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::init(OSDictionary*)> AirPort_BrcmNIC::init AirPortFamily_kexts-1710.3 "AirPortFamily_kexts-1710.3" May 26 2020 20:32:26
2020-07-27 08:32:11.944776+0100  localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 0.944774: AirPort_Brcm43XX:probe:, this[0xea376fd00c11d50d]  score[2048]
2020-07-27 08:32:11.944785+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::init(OSDictionary*)> AirPort_Brcm4360::init AirPortFamily_kexts-1710.3 "AirPortFamily_kexts-1710.3" May 26 2020 20:32:26
2020-07-27 08:32:11.944798+0100  localhost kernel[0]: (AirPortBrcm4360) <AirPortBrcm4360`osl_iolog_withtimestamp> ARPT: 0.944796: AirPort_Brcm43XX:probe:, this[0x93ce0a741866dd95]  score[1110]
2020-07-27 08:32:15.265464+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::init(OSDictionary*)> AirPort_BrcmNIC::init AirPortFamily_kexts-1710.3 "AirPortFamily_kexts-1710.3" May 26 2020 20:32:26
2020-07-27 08:32:15.265526+0100  localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 5.290716: AirPort_Brcm43XX:probe:, this[0xea376fd00cd0350d]  score[2048]
2020-07-27 08:32:15.265534+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::init(OSDictionary*)> AirPort_Brcm4360::init AirPortFamily_kexts-1710.3 "AirPortFamily_kexts-1710.3" May 26 2020 20:32:26
2020-07-27 08:32:15.265586+0100  localhost kernel[0]: (AirPortBrcm4360) <AirPortBrcm4360`osl_iolog_withtimestamp> ARPT: 5.290776: AirPort_Brcm43XX:probe:, this[0x93ce0a7417ee1d95]  score[1110]
2020-07-27 08:32:15.534016+0100  localhost kernel[0]: (AirPortBrcmNIC) <AirPortBrcmNIC`osl_iolog_withtimestamp> ARPT: 5.559204: BRCM tunables:
2020-07-27 08:32:15.678258+0100  localhost kernel[0]: (kernel) BrcmPatchRAM: Loaded compressed embedded firmware for key "BCM20702A1_001.002.014.1443.1572_v5668".
2020-07-27 08:32:15.678672+0100  localhost kernel[0]: (kernel) BrcmPatchRAM: Decompressed firmware (29651 bytes --> 70012 bytes).
2020-07-27 08:32:15.679062+0100  localhost kernel[0]: (kernel) BrcmPatchRAM: Firmware is valid IntelHex firmware.
2020-07-27 08:32:15.780017+0100  localhost kernel[0]: (kernel) BrcmPatchRAM: [0a5c:216f]: USB [C48E8FF4AA52 v274] "BCM20702A0" by "Broadcom Corp"
2020-07-27 08:32:15.790207+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211Controller::logDebug(char const*, ...)> AirPort_BrcmNIC::getSSIDData(): Get failure: APPLE80211_IOC_SSID: 6
2020-07-27 08:32:16.260058+0100  localhost kernel[0]: (kernel) BrcmPatchRAM: [0a5c:216f]: Firmware upgrade completed successfully.
2020-07-27 08:32:16.260286+0100  localhost kernel[0]: (kernel) BrcmPatchRAM: Processing time 0.581 seconds.
2020-07-27 08:32:20.164123+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211VirtualInterface::init(IO80211Controller*, ether_addr*, unsigned int, char const*)> IO80211VirtualInterface::AirPort_BrcmNIC_P2PInterface::init name <p2p0> role 1
2020-07-27 08:32:20.165048+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211P2PInterface::init(IO80211Controller*, ether_addr*, unsigned int, char const*)> AirPort_BrcmNIC_P2PInterface::init <p2p> role 1
2020-07-27 08:32:20.406581+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211VirtualInterface::init(IO80211Controller*, ether_addr*, unsigned int, char const*)> IO80211VirtualInterface::AirPort_BrcmNIC_P2PInterface::init name <awdl0> role 4
2020-07-27 08:32:20.406599+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211P2PInterface::awdlAttachToBpf()> AirPort_BrcmNIC_P2PInterface::awdlAttachToBpf name <awdl0> role 4 successful attach to bpf type 147
2020-07-27 08:32:20.411342+0100  localhost kernel[0]: (IO80211Family) <IO80211Family`IO80211P2PInterface::init(IO80211Controller*, ether_addr*, unsigned int, char const*)> AirPort_BrcmNIC_P2PInterface::init <awdl> role 4

 

 

 

Any help will be greatly appreciated, as this is the only thing not working properly with this laptop...

 

Many thanks in advance!

 

happy hacking!

littlegreen