E-750 missing /dev/cdc-wdm0 device

Technical Support for Routers
1

Hello Everyone,

I’ve had my mudi e-750 router for a year or so, worked perfectly and followed me everywhere around the world. This morning, I boot it up and nothing. No 4g connection.

I started digging around and in luci the wan interface said “unknown device”. So into ssh we go into the unit:

root@GL-E750:~# ls /dev/c*
/dev/console /dev/cpu_dma_latency
root@GL-E750:~# ls /dev/tty*
/dev/tty /dev/ttyS10 /dev/ttyS13 /dev/ttyS2 /dev/ttyS5 /dev/ttyS8
/dev/ttyS0 /dev/ttyS11 /dev/ttyS14 /dev/ttyS3 /dev/ttyS6 /dev/ttyS9
/dev/ttyS1 /dev/ttyS12 /dev/ttyS15 /dev/ttyS4 /dev/ttyS7

So as you can see no wan device and no TTYUSB devices either.
I tried to create them manually:
opkg install usb-modeswitch kmod-mii kmod-usb-net kmod-usb-wdm kmod-usb-net-qmi-wwan uqmi

Command runs through, I reboot and devices are the same.
Here is my /sys/kernel/debug/usb/devices

T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev= 4.14
S: Manufacturer=Linux 4.14.241 ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=1b000000.usb
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms

That’s it. nothing else in that file.

Is it beyond hope for my mudi router ?

If anyone can help me, I’d really appreciate it.

L.

2

Snipaste_2023-06-19_11-42-30
Snipaste_2023-06-19_11-42-301865×937 191 KB

Do you mean this place is not shown?

3

That is correct. the web ui shows “no 3g/4g modem detected” and in luci when I look at the network interfaces the wan says “device not found”

4
  1. Please provide your version information, which can be viewed on the Upgrade page.
  2. Is your SIM card plugged directly into the e750? If yes, please use ssh to enter the terminal and provide the results of the following two commands
    cat /sys/bus/usb/devices/1-1.2/idProduct
    cat /sys/bus/usb/devices/1-1.2/idVendor
  3. If your sim card is plugged into an external modem module and connected to the e750 via usb, please provide the modem module model number
5

a) My current version is 3.217. The problem occurred while I was running 3.216, I upgraded while trying to fix the issue.
b) yes my sim is directly connected to the e750
root@GL-E750:~# cat /sys/bus/usb/devices/1-1.2/idProduct
cat: can’t open ‘/sys/bus/usb/devices/1-1.2/idProduct’: No such file or directory

cat /sys/bus/usb/devices/1-1.2/idVendor
cat: can’t open ‘/sys/bus/usb/devices/1-1.2/idVendor’: No such file or directory

the only items I have under /sys/bus/usb/devices are:
drwxr-xr-x 2 root root 0 Jan 1 1970 .
drwxr-xr-x 4 root root 0 Jan 1 1970 …
lrwxrwxrwx 1 root root 0 Jan 1 1970 1-0:1.0 → …/…/…/devices/platform/ahb/1b000000.usb/usb1/1-0:1.0
lrwxrwxrwx 1 root root 0 Jan 1 1970 usb1 → …/…/…/devices/platform/ahb/1b000000.usb/usb1

Thank You

L

6

It seems that the driver is not loaded, you reboot the device first, then enter the terminal with ssh and provide information about the following two commands (note that these two commands will print a lot of information, it is recommended to enter many carriage returns before entering the commands so that they are easy to find).
dmesg
logread

7

These logs are taken a cold boot:

root@GL-E750:~# dmesg
[    0.000000] Linux version 4.14.241 (glinet@glinet) (gcc version 7.5.0 (OpenWrt GCC 7.5.0 r11257-5090152ae3)) #0 Thu Jul 29 19:50:28 2021
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 00019374 (MIPS 24Kc)
[    0.000000] MIPS: machine is GL.iNet GL-E750 (NOR/NAND)
[    0.000000] SoC: Qualcomm Atheros QCA9533 ver 2 rev 0
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 08000000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] On node 0 totalpages: 32768
[    0.000000] free_area_init_node: node 0, pgdat 805d7aa0, node_mem_map 810072e0
[    0.000000]   Normal zone: 256 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 32768 pages, LIFO batch:7
[    0.000000] random: get_random_bytes called from start_kernel+0x98/0x494 with crng_init=0
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 32512
[    0.000000] Kernel command line: rootfstype=squashfs,jffs2 rootfstype=squashfs,jffs2
[    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] Memory: 122404K/131072K available (4427K kernel code, 156K rwdata, 1008K rodata, 1244K init, 218K bss, 8668K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 51
[    0.000000] CPU clock: 650.000 MHz
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5880801374 ns
[    0.000009] sched_clock: 32 bits at 325MHz, resolution 3ns, wraps every 6607641598ns
[    0.008256] Calibrating delay loop... 432.53 BogoMIPS (lpj=2162688)
[    0.074863] pid_max: default: 32768 minimum: 301
[    0.079933] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.086902] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.098519] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.108937] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.115467] pinctrl core: initialized pinctrl subsystem
[    0.122201] NET: Registered protocol family 16
[    0.133967] PCI host bridge /ahb/pcie-controller@180c0000 ranges:
[    0.140403]  MEM 0x0000000010000000..0x0000000013ffffff
[    0.145955]   IO 0x0000000000000000..0x0000000000000000
[    0.168468] PCI host bridge to bus 0000:00
[    0.172802] pci_bus 0000:00: root bus resource [mem 0x10000000-0x13ffffff]
[    0.180096] pci_bus 0000:00: root bus resource [io  0x0000]
[    0.185964] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[    0.193120] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    0.201505] pci 0000:00:00.0: [168c:0050] type 00 class 0x028000
[    0.201565] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[    0.201619] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[    0.201698] pci 0000:00:00.0: supports D1
[    0.201707] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
[    0.201918] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    0.201945] pci 0000:00:00.0: BAR 0: assigned [mem 0x10000000-0x101fffff 64bit]
[    0.209698] pci 0000:00:00.0: BAR 6: assigned [mem 0x10200000-0x1020ffff pref]
[    0.220048] clocksource: Switched to clocksource MIPS
[    0.226402] NET: Registered protocol family 2
[    0.231261] IP idents hash table entries: 2048 (order: 2, 16384 bytes)
[    0.238813] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.246227] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.252945] TCP: Hash tables configured (established 1024 bind 1024)
[    0.259795] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.266004] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.272907] NET: Registered protocol family 1
[    0.277540] PCI: CLS 0 bytes, default 32
[    0.280574] Crashlog allocated RAM at address 0x3f00000
[    0.287426] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[    0.299350] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.305544] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.326572] io scheduler noop registered
[    0.330767] io scheduler deadline registered (default)
[    0.338320] pinctrl-single 1804002c.pinmux: 576 pins at pa b804002c size 72
[    0.346215] gpio-export gpio-export: 1 gpio(s) exported
[    0.352486] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.361594] console [ttyS0] disabled
[    0.365406] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 9, base_baud = 1562500) is a 16550A
[    0.374549] console [ttyS0] enabled
[    0.458111] bootconsole [early0] disabled
[    0.572430] m25p80 spi0.0: w25q128 (16384 Kbytes)
[    0.628937] 5 fixed-partitions partitions found on MTD device spi0.0
[    0.705140] Creating 5 MTD partitions on "spi0.0":
[    0.762633] 0x000000000000-0x000000040000 : "u-boot"
[    0.823002] 0x000000040000-0x000000050000 : "u-boot-env"
[    0.887599] 0x000000050000-0x000000060000 : "art"
[    0.944823] 0x000000060000-0x000000460000 : "kernel"
[    1.005126] 0x000000460000-0x000001000000 : "nor_reserved"
[    1.075179] spi-nand: Mxic SPI NAND was found.
[    1.128520] spi-nand: 128 MiB, block size: 128 KiB, page size: 2048, OOB size: 128
[    1.219432] 1 fixed-partitions partitions found on MTD device spi0.1
[    1.295707] Creating 1 MTD partitions on "spi0.1":
[    1.353188] 0x000000000000-0x000008000000 : "ubi"
[    1.624166] found bad block 1200000
[    1.724126] found bad block 3a00000
[    1.799375] found bad block 5100000
[    1.843725] found bad block 52c0000
[    1.951787] libphy: Fixed MDIO Bus: probed
[    2.340447] libphy: ag71xx_mdio: probed
[    2.670515] mdio-bus.0:1f: Found an AR934X built-in switch
[    2.736544] libphy: ar7240sw_mdio: probed
[    3.172268] ag71xx 19000000.eth: connected to PHY at mdio-bus.0:1f:04 [uid=004dd042, driver=Generic PHY]
[    3.286654] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: mii
[    3.360387] NET: Registered protocol family 10
[    3.417484] Segment Routing with IPv6
[    3.461520] NET: Registered protocol family 17
[    3.514853] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    3.670345] 8021q: 802.1Q VLAN Support v1.8
[    3.726368] UBI: auto-attach mtd5
[    3.766170] ubi0: attaching mtd5
[    4.250052] random: fast init done
[    8.032248] ubi0: scanning is finished
[    8.124860] ubi0: attached mtd5 (name "ubi", size 128 MiB)
[    8.190670] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[    8.273145] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[    8.354625] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
[    8.438175] ubi0: good PEBs: 1020, bad PEBs: 4, corrupted PEBs: 0
[    8.511302] ubi0: user volume: 2, internal volumes: 1, max. volumes count: 128
[    8.597994] ubi0: max/mean erase counter: 6/2, WL threshold: 4096, image sequence number: 92120774
[    8.705547] ubi0: available PEBs: 0, total reserved PEBs: 1020, PEBs reserved for bad PEB handling: 16
[    8.817374] ubi0: background thread "ubi_bgt0d" started, PID 317
[    8.892823] block ubiblock0_0: created from ubi0:0(rootfs)
[    8.958678] ubiblock: device ubiblock0_0 (rootfs) set to be root filesystem
[    9.058166] VFS: Mounted root (squashfs filesystem) readonly on device 254:0.
[    9.151444] Freeing unused kernel memory: 1244K
[    9.205776] This architecture does not have kernel memory protection.
[   10.355971] init: Console is alive
[   10.397079] init: - watchdog -
[   13.793768] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[   14.270839] usbcore: registered new interface driver usbfs
[   14.336751] usbcore: registered new interface driver hub
[   14.400581] usbcore: registered new device driver usb
[   14.471746] exFAT: Version 1.2.9
[   14.549695] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   14.637994] SCSI subsystem initialized
[   14.688889] ehci-platform: EHCI generic platform driver
[   14.751925] ehci-platform 1b000000.usb: EHCI Host Controller
[   14.819904] ehci-platform 1b000000.usb: new USB bus registered, assigned bus number 1
[   14.913954] ehci-platform 1b000000.usb: irq 3, io mem 0x1b000000
[   15.010068] ehci-platform 1b000000.usb: USB 2.0 started, EHCI 1.00
[   15.085070] hub 1-0:1.0: USB hub found
[   15.130461] hub 1-0:1.0: 1 port detected
[   15.181795] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   15.257678] ohci-platform: OHCI generic platform driver
[   15.323441] uhci_hcd: USB Universal Host Controller Interface driver
[   15.404600] usbcore: registered new interface driver usb-storage
[   15.479401] usbcore: registered new interface driver uas
[   15.544003] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[   15.641239] init: - preinit -
[   16.982934] random: jshn: uninitialized urandom read (4 bytes read)
[   17.280708] random: jshn: uninitialized urandom read (4 bytes read)
[   17.389054] random: jshn: uninitialized urandom read (4 bytes read)
[   18.265926] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   21.596310] mount_root: loading kmods from internal overlay
[   21.745131] kmodloader: loading kernel modules from //etc/modules-boot.d/*
[   21.832613] kmodloader: done loading kernel modules from //etc/modules-boot.d/*
[   23.422923] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 465
[   23.565923] urandom_read: 4 callbacks suppressed
[   23.565931] random: procd: uninitialized urandom read (4 bytes read)
[   23.888534] UBIFS (ubi0:1): recovery needed
[   24.442855] UBIFS (ubi0:1): recovery completed
[   24.496268] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "rootfs_data"
[   24.590263] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[   24.709284] UBIFS (ubi0:1): FS size: 111865856 bytes (106 MiB, 881 LEBs), journal size 5586944 bytes (5 MiB, 44 LEBs)
[   24.836665] UBIFS (ubi0:1): reserved for root: 4952683 bytes (4836 KiB)
[   24.916047] UBIFS (ubi0:1): media format: w4/r0 (latest is w5/r0), UUID 7BCFCE35-3679-4F13-9E72-E9D0CA1FE10F, small LPT model
[   25.066295] block: attempting to load /tmp/ubifs_cfg/upper/etc/config/fstab
[   25.188093] block: extroot: not configured
[   25.237535] UBIFS (ubi0:1): un-mount UBI device 0
[   25.294042] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" stops
[   25.390101] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 468
[   26.023484] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "rootfs_data"
[   26.117548] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[   26.236532] UBIFS (ubi0:1): FS size: 111865856 bytes (106 MiB, 881 LEBs), journal size 5586944 bytes (5 MiB, 44 LEBs)
[   26.363899] UBIFS (ubi0:1): reserved for root: 4952683 bytes (4836 KiB)
[   26.443290] UBIFS (ubi0:1): media format: w4/r0 (latest is w5/r0), UUID 7BCFCE35-3679-4F13-9E72-E9D0CA1FE10F, small LPT model
[   26.608671] mount_root: loading kmods from internal overlay
[   26.751100] kmodloader: loading kernel modules from /tmp/overlay/upper/etc/modules-boot.d/*
[   26.859978] kmodloader: done loading kernel modules from /tmp/overlay/upper/etc/modules-boot.d/*
[   28.139478] block: attempting to load /tmp/ubifs_cfg/upper/etc/config/fstab
[   28.247495] block: extroot: not configured
[   28.305700] mount_root: switching to ubifs overlay
[   28.484772] urandom-seed: Seeding with /etc/urandom.seed
[   28.730831] procd: - early -
[   28.765581] procd: - watchdog -
[   29.552261] random: jshn: uninitialized urandom read (4 bytes read)
[   29.627656] procd: - watchdog -
[   29.740008] procd: - ubus -
[   30.200259] random: ubusd: uninitialized urandom read (4 bytes read)
[   30.384105] procd: - init -
[   33.801809] kmodloader: loading kernel modules from /etc/modules.d/*
[   34.209187] urngd: v1.0.2 started.
[   34.408868] ntfs: driver 2.1.32 [Flags: R/O MODULE].
[   34.634963] tun: Universal TUN/TAP device driver, 1.6
[   34.801907] random: crng init done
[   34.870965] GobiNet: 2018-12-21/SWI_2.55
[   34.919660] usbcore: registered new interface driver GobiNet
[   35.236945] usbcore: registered new interface driver usbserial
[   35.307073] usbcore: registered new interface driver usbserial_generic
[   35.385480] usbserial: USB Serial support registered for generic
[   35.931386] usbcore: registered new interface driver GobiSerial
[   36.002576] usbserial: USB Serial support registered for GobiSerial
[   36.077780] GobiSerial: 2015-08-27/SWI_2.25:GobiSerial
[   36.443312] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   36.595773] nf_conntrack version 0.5.0 (2048 buckets, 8192 max)
[   36.924470] Netfilter messages via NETLINK v0.30.
[   37.043171] ip_set: protocol 6
[   37.195619] Mirror/redirect action on
[   37.304089] u32 classifier
[   37.336544]     input device check on
[   37.380399]     Actions configured
[   37.557118] GACT probability on
[   37.602304] Simple TC action Loaded
[   37.681388] fuse init (API version 7.26)
[   37.807778] usbcore: registered new interface driver cdc_acm
[   37.875768] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[   38.226654] usbcore: registered new interface driver cdc_ether
[   38.332486] usbcore: registered new interface driver cdc_ncm
[   38.484332] usbcore: registered new interface driver cdc_wdm
[   38.632191] Loading modules backported from Linux version v4.19.193-0-g1722257b8ece
[   38.724100] Backport generated by backports.git v4.19.193-1-0-gaa2cc8ea
[   38.842135] usbcore: registered new interface driver cp210x
[   38.909130] usbserial: USB Serial support registered for cp210x
[   38.997337] Ebtables v2.0 registered
[   39.042356] usbcore: registered new interface driver huawei_cdc_ncm
[   39.121837] ip_tables: (C) 2000-2006 Netfilter Core Team
[   39.188435] usbcore: registered new interface driver ipheth
[   39.363693] ctnetlink v0.93: registering with nfnetlink.
[   39.557333] usbcore: registered new interface driver qmi_wwan
[   39.631035] usbcore: registered new interface driver rndis_host
[   39.705914] usbcore: registered new interface driver sierra
[   39.772904] usbserial: USB Serial support registered for Sierra USB modem
[   39.859427] usbcore: registered new interface driver sierra_net
[   39.947940] wireguard: WireGuard 1.0.20200611 loaded. See www.wireguard.com for information.
[   40.049295] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
[   40.220257] xt_time: kernel timezone is -0000
[   40.470237] usbcore: registered new interface driver option
[   40.537236] usbserial: USB Serial support registered for GSM modem (1-port)
[   40.885227] PPP generic driver version 2.4.2
[   40.942610] PPP MPPE Compression module registered
[   41.002834] NET: Registered protocol family 24
[   41.115250] PCI: Enabling device 0000:00:00.0 (0000 -> 0002)
[   41.185450] ath10k_pci 0000:00:00.0: pci irq legacy oper_irq_mode 1 irq_mode 0 reset_mode 0
[   41.562290] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:00:00.0.bin failed with error -2
[   41.690740] ath10k_pci 0000:00:00.0: Falling back to user helper
[   41.973248] firmware ath10k!pre-cal-pci-0000:00:00.0.bin: firmware_loading_store: map pages failed
[   42.087485] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/firmware-6.bin failed with error -2
[   42.215891] ath10k_pci 0000:00:00.0: Falling back to user helper
[   42.499080] firmware ath10k!QCA9887!hw1.0!firmware-6.bin: firmware_loading_store: map pages failed
[   42.614331] ath10k_pci 0000:00:00.0: qca9887 hw1.0 target 0x4100016d chip_id 0x004000ff sub 0000:0000
[   42.725094] ath10k_pci 0000:00:00.0: kconfig debug 0 debugfs 1 tracing 0 dfs 1 testmode 1
[   42.828790] ath10k_pci 0000:00:00.0: firmware ver 10.2.4-1.0-00047 api 5 features no-p2p,ignore-otp,skip-clock-init,mfp,allows-mesh-bcast crc32 62f7565f
[   43.025411] ath10k_pci 0000:00:00.0: Direct firmware load for ath10k/QCA9887/hw1.0/board-2.bin failed with error -2
[   43.150693] ath10k_pci 0000:00:00.0: Falling back to user helper
[   43.432679] firmware ath10k!QCA9887!hw1.0!board-2.bin: firmware_loading_store: map pages failed
[   43.553929] ath10k_pci 0000:00:00.0: board_file api 1 bmi_id N/A crc32 546cca0d
[   44.739829] ath10k_pci 0000:00:00.0: htt-ver 2.1 wmi-op 5 htt-op 2 cal file max-sta 128 raw 0 hwcrypto 1
[   44.981611] ath: EEPROM regdomain: 0x0
[   44.981620] ath: EEPROM indicates default country code should be used
[   44.981623] ath: doing EEPROM country->regdmn map search
[   44.981637] ath: country maps to regdmn code: 0x3a
[   44.981642] ath: Country alpha2 being used: US
[   44.981646] ath: Regpair used: 0x3a
[   45.112997] usbcore: registered new interface driver rt2800usb
[   45.306792] ath: EEPROM regdomain: 0x0
[   45.306802] ath: EEPROM indicates default country code should be used
[   45.306806] ath: doing EEPROM country->regdmn map search
[   45.306821] ath: country maps to regdmn code: 0x3a
[   45.306827] ath: Country alpha2 being used: US
[   45.306830] ath: Regpair used: 0x3a
[   45.320215] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
[   45.322049] ieee80211 phy1: Atheros AR9531 Rev:2 mem=0xb8100000, irq=13
[   45.510676] kmodloader: done loading kernel modules from /etc/modules.d/*
[   66.509247] IPv6: ADDRCONF(NETDEV_UP): lo: link is not ready
[   67.589254] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   67.600627] br-lan: port 1(eth0) entered blocking state
[   67.600640] br-lan: port 1(eth0) entered disabled state
[   67.600951] device eth0 entered promiscuous mode
[   73.356621] br-lan: port 2(wlan1) entered blocking state
[   73.356633] br-lan: port 2(wlan1) entered disabled state
[   73.356965] device wlan1 entered promiscuous mode
[   73.357076] br-lan: port 2(wlan1) entered blocking state
[   73.357084] br-lan: port 2(wlan1) entered forwarding state
[   73.644682] br-lan: port 2(wlan1) entered disabled state
[   76.492132] ath10k_pci 0000:00:00.0: pdev param 0 not supported by firmware
[   76.665015] br-lan: port 3(wlan0) entered blocking state
[   76.665028] br-lan: port 3(wlan0) entered disabled state
[   76.665380] device wlan0 entered promiscuous mode
[   77.695404] br-lan: port 2(wlan1) entered blocking state
[   77.695419] br-lan: port 2(wlan1) entered forwarding state
[   78.021145] br-lan: port 3(wlan0) entered blocking state
[   78.021160] br-lan: port 3(wlan0) entered forwarding state
8

Here is a zip with the output of both commands (the logread is too big to copy / paste in a message)
e-750logs.zip (17.5 KB)

Thanks for your assistance

L.

9

Hello @_zhang Hopefully you received my logs. Waiting on feedback.
thanks

10

Hello, we have received your log message, if you are convenient to find a time (note the time zone, mine is Asia/Shanghai (UTC+8:00)), we can help you check the issue remotely.

11

@_zhang HI. I’m on a quick trip for business – I should be back home by Thursday this week.