Hello, I have tested a hybrid laptop device which is actually a tablet(YOGA 3 Pro-1370) and has a BCM Wi-Fi. On Ubuntu boot I get: [ 2.294215] bcma-pci-bridge 0000:01:00.0: bus0: Found chip with id 0x4352, rev 0x03 and package 0x00 [ 2.294263] bcma-pci-bridge 0000:01:00.0: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x2B, class 0x0) [ 2.294290] bcma-pci-bridge 0000:01:00.0: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x2A, class 0x0) [ 2.294348] bcma-pci-bridge 0000:01:00.0: bus0: Core 2 found: ARM CR4 (manuf 0x4BF, id 0x83E, rev 0x02, class 0x0) [ 2.294398] bcma-pci-bridge 0000:01:00.0: bus0: Core 3 found: PCIe Gen2 (manuf 0x4BF, id 0x83C, rev 0x01, class 0x0) [ 2.294424] bcma-pci-bridge 0000:01:00.0: bus0: Core 4 found: USB 2.0 Device (manuf 0x4BF, id 0x81A, rev 0x11, class 0x0) [ 2.332079] cryptd: max_cpu_qlen set to 1000 [ 2.350696] bcma: Unsupported SPROM revision: 11 [ 2.350760] bcma-pci-bridge 0000:01:00.0: bus0: Invalid SPROM read from the PCIe card, trying to use fallback SPROM [ 2.350764] bcma-pci-bridge 0000:01:00.0: bus0: Using fallback SPROM failed (err -2) [ 2.350767] bcma-pci-bridge 0000:01:00.0: bus0: No SPROM available [ 2.353785] bcma-pci-bridge 0000:01:00.0: bus0: Bus registered [ 34.766808] b43-phy0: Broadcom 4352 WLAN found (core revision 42) [ 34.787320] bcma-pci-bridge 0000:01:00.0: bus0: HT force timeout [ 34.930930] bcma-pci-bridge 0000:01:00.0: bus0: PLL enable timeout [ 34.930980] b43-phy0 ERROR: FOUND UNSUPPORTED PHY (Analog 12, Type 11 (AC), Revision 1) [ 34.931036] b43: probe of bcma0:1 failed with error -95 [ 34.931136] Broadcom 43xx driver loaded [ Features: PNL ] This is the device: 01:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03) Subsystem: Lenovo BCM4352 802.11ac Wireless Network Adapter [17aa:0623] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 18 Region 0: Memory at c1200000 (64-bit, non-prefetchable) [size=32K] Region 2: Memory at c1000000 (64-bit, non-prefetchable) [size=2M] Capabilities: [48] Power Management version 3 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=2 PME- Capabilities: [58] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [68] Vendor Specific Information: Len=44 <?> Capabilities: [ac] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 10W DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <2us, L1 <32us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes, Disabled- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1 TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR- 10BitTagComp- 10BitTagReq- OBFF Via WAKE#, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- TPHComp- ExtTPHComp- AtomicOpsCap: 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled, AtomicOpsCtl: ReqEn- LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete- EqualizationPhase1- EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest- Retimer- 2Retimers- CrosslinkRes: unsupported Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn- MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap- HeaderLog: 00000000 00000000 00000000 00000000 Capabilities: [13c v0] Device Serial Number ac-d1-00-ff-**-**-**-** Capabilities: [150 v1] Power Budgeting <?> Capabilities: [160 v1] Virtual Channel Caps: LPEVC=0 RefClk=100ns PATEntryBits=1 Arb: Fixed- WRR32- WRR64- WRR128- Ctrl: ArbSelect=Fixed Status: InProgress- VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff Status: NegoPending- InProgress- Kernel driver in use: bcma-pci-bridge Kernel modules: bcma 00: e4 14 b1 43 06 00 10 00 03 00 80 02 10 00 00 00 10: 04 00 20 c1 00 00 00 00 04 00 00 c1 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 23 06 30: 00 00 00 00 48 00 00 00 00 00 00 00 ff 01 00 00 40: 00 00 00 00 00 00 00 00 01 58 03 fe 08 40 00 00 50: 00 00 00 00 00 00 00 00 05 68 80 00 00 00 00 00 60: 00 00 00 00 00 00 00 00 09 ac 44 00 01 01 00 00 70: 00 10 10 18 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 10 00 18 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 40 00 05 00 10 00 02 00 b0: 81 8f 90 05 10 2c 10 00 11 dc 46 00 43 01 11 10 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 1f 00 08 00 00 00 00 00 00 00 00 00 01 00 01 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 100: 01 00 c1 13 00 00 00 00 00 00 00 00 30 20 06 00 110: 00 00 00 00 00 20 00 00 a0 00 00 00 00 00 00 00 120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 130: 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 15 As it says UNSUPPORTED PHY and 43b1 is not supported with no alternative as can be seen[1], can this device be used? What is the SPROM issue about? [1]https://wireless.wiki.kernel.org/en/users/Drivers/b43