MC7455 in QDL mode

Wed Nov 22 05:47:50 UTC 2017

Hi,

I seem to have one MC7455 in QDL mode. I can see that after bootup it will
do several USB interface connect/disconnects, and after that set itself in
QDL (this would be normal, according to the specs).

The reason might be a failed FW upgrade done before installation or any
corruption on the board itself so it can not load the firmware.

I was thinking if there is any way I could solve it without disconnecting
the modem and do the normal FW upgrade in another machine. Since the
/dev/ttyUSB0 port is exposed, I could, maybe, initiate the FW upgrade via
qmi-firmware update.

Which I tried, but I get following (whole printout at the bottom of the
email).

[22 Nov 2017, 05:04:07] [Debug] [qfu,dload-message] sent sdp:
[22 Nov 2017, 05:04:07] [Debug] [qfu-qdl-device] >> 70:00:00 [3, unframed]
[22 Nov 2017, 05:04:07] [Debug] [qfu-qdl-device] >> 7E:70:00:00:14:46:7E [7]
[22 Nov 2017, 05:04:07] [Debug] [qfu-qdl-device] <<
01:00:00:00:30:00:00:00:02:00:00:00:01:00:00:00:00:04:00:00:02:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
[48]
error: error creating device: HDLC trailing control character not found

It seems to give some response, but it does not tell me much, is this
something that could be useful, or nothing that can be done in this modem
state.

Regards,
Sebastian

Collected printouts:

root at LI17MR702A03:/tmp# lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ci_hdrc/1p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 2: Dev 7, If 0, Class=Vendor Specific Class,
Driver=qcserial, 480M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ci_hdrc/1p, 480M
root at LI17MR702A03:/tmp# lsusb
Bus 002 Device 007: ID 1199:9070 Sierra Wireless, Inc.
Bus 002 Device 002: ID 04b4:6570 Cypress Semiconductor Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root at LI17MR702A03:/tmp#

dmesg:
...
[   72.184679] usb 2-1.2: new high-speed USB device number 6 using ci_hdrc
[   72.272009] usb 2-1.2: config 1 has an invalid interface number: 8 but
max is 4
[   72.272030] usb 2-1.2: config 1 has an invalid interface number: 10 but
max is 4
[   72.272048] usb 2-1.2: config 1 has no interface number 1
[   72.272064] usb 2-1.2: config 1 has no interface number 4
[   72.281494] qcserial 2-1.2:1.0: Qualcomm USB modem converter detected
[   72.285038] usb 2-1.2: Qualcomm USB modem converter now attached to
ttyUSB0
[   72.291251] qcserial 2-1.2:1.2: Qualcomm USB modem converter detected
[   72.295215] usb 2-1.2: Qualcomm USB modem converter now attached to
ttyUSB1
[   72.299301] qcserial 2-1.2:1.3: Qualcomm USB modem converter detected
[   72.303149] usb 2-1.2: Qualcomm USB modem converter now attached to
ttyUSB2
[   72.311524] qmi_wwan 2-1.2:1.8: cdc-wdm0: USB WDM device
[   72.315733] qmi_wwan 2-1.2:1.8 wwan0: register 'qmi_wwan' at
usb-ci_hdrc.1-1.2, WWAN/QMI device, c6:d3:a5:a3:4f:cc
[   72.324885] qmi_wwan 2-1.2:1.10: cdc-wdm1: USB WDM device
[   72.329777] qmi_wwan 2-1.2:1.10 wwan1: register 'qmi_wwan' at
usb-ci_hdrc.1-1.2, WWAN/QMI device, c6:d3:a5:a3:4f:cc
[   89.914506] usb 2-1.2: USB disconnect, device number 6
[   89.920615] qcserial ttyUSB0: Qualcomm USB modem converter now
disconnected from ttyUSB0
[   89.920802] qcserial 2-1.2:1.0: device disconnected
[   89.924105] qcserial ttyUSB1: Qualcomm USB modem converter now
disconnected from ttyUSB1
[   89.924209] qcserial 2-1.2:1.2: device disconnected
[   89.929743] qcserial ttyUSB2: Qualcomm USB modem converter now
disconnected from ttyUSB2
[   89.929852] qcserial 2-1.2:1.3: device disconnected
[   89.930433] qmi_wwan 2-1.2:1.8 wwan0: unregister 'qmi_wwan'
usb-ci_hdrc.1-1.2, WWAN/QMI device
[   89.942568] qmi_wwan 2-1.2:1.10 wwan1: unregister 'qmi_wwan'
usb-ci_hdrc.1-1.2, WWAN/QMI device
[   90.469494] usb 2-1.2: new high-speed USB device number 7 using ci_hdrc
[   90.562727] qcserial 2-1.2:1.0: Qualcomm USB modem converter detected
[   90.566375] usb 2-1.2: Qualcomm USB modem converter now attached to
ttyUSB0
...

root at LI17MR702A03:/tmp# qmi-firmware-update -v -U -t /dev/ttyUSB0
SWI9X30C_02.24.05.06.cwe SWI9X30C_02.24.05.06_GENERIC_002.026_000.nvu
[22 Nov 2017, 05:04:07] [Debug] [qfu-udev] sysfs path for 'ttyUSB0' found:
/sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb2/2-1/2-1.2
[22 Nov 2017, 05:04:07] [Debug] [qfu-utils] couldn't ping ModemManager:
GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Name
"org.freedesktop.ModemManager1" does not exist
[22 Nov 2017, 05:04:07] [Debug] [qfu-image] loading file info...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image] opening file for reading...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] reading image headers...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] image offset range:
[0,64432017]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image offset range:
[400,339108]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[800,339108]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 800 is
valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] image at offset 400 is valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image offset range:
[339108,32081283]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[339508,695676]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 339508 is
valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[695676,849080]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 695676 is
valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[849080,32081283]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 849080 is
valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] image at offset 339108 is
valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image offset range:
[32081283,64432017]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[32081683,32248855]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 32081683
is valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[32248855,42834575]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 32248855
is valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[42834575,59191456]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 42834575
is valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[59191456,64432017]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 59191456
is valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] image at offset 32081283 is
valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] validating data size...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] preloading
firmware/config/carrier...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   firmware version:
02.24.05.06
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   config version:   unknown
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   carrier:          unknown
[22 Nov 2017, 05:04:07] [Debug] [qfu-image] loading file info...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image] opening file for reading...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] reading image headers...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] image offset range: [0,3889]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image offset range:
[400,3889]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image offset range:
[800,3889]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]       image offset range:
[1200,3889]
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]     image at offset 1200 is
valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   image at offset 800 is
valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] image at offset 400 is valid
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] validating data size...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe] preloading
firmware/config/carrier...
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   firmware version:
02.24.05.06
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   config version:
 002.026_000
[22 Nov 2017, 05:04:07] [Debug] [qfu-image-cwe]   carrier:          GENERIC
[22 Nov 2017, 05:04:07] [Debug] [qfu,device-selection] single tty device
requested in sysfs path
'/sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb2/2-1/2-1.2'
[22 Nov 2017, 05:04:07] [Debug] [qfu,device-selection]   device found:
/dev/ttyUSB0
[22 Nov 2017, 05:04:07] [Debug] [qfu,device-selection]   using preferred
device: /dev/ttyUSB0
[22 Nov 2017, 05:04:07] [Debug] [qfu-qdl-device] opening TTY: /dev/ttyUSB0
[22 Nov 2017, 05:04:07] [Debug] [qfu-qdl-device] setting terminal in raw
mode...
[22 Nov 2017, 05:04:07] [Debug] [qfu,dload-message] sent sdp:
[22 Nov 2017, 05:04:07] [Debug] [qfu-qdl-device] >> 70:00:00 [3, unframed]
[22 Nov 2017, 05:04:07] [Debug] [qfu-qdl-device] >> 7E:70:00:00:14:46:7E [7]
[22 Nov 2017, 05:04:07] [Debug] [qfu-qdl-device] <<
01:00:00:00:30:00:00:00:02:00:00:00:01:00:00:00:00:04:00:00:02:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
[48]
error: error creating device: HDLC trailing control character not found
root at LI17MR702A03:/tmp#

root at LI17MR702A03:/tmp# qmicli --version

qmicli 1.19.0
Copyright (C) 2012-2017 Aleksander Morgado
License GPLv2+: GNU GPL version 2 or later <
http://gnu.org/licenses/gpl-2.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

root at LI17MR702A03:/tmp# uname -a
Linux LI17MR702A03 4.10.17 #1 SMP Sat May 20 14:21:32 MDT 2017 armv7l
GNU/Linux
root at LI17MR702A03:/tmp#
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