Updating firmware of modem Sierra Wireless EM7455

[Dan Williams]

On Tue, 2018-04-10 at 16:33 +0200, Pavlin Georgiev wrote:
> Hi,
> 
> I try to updated the firmware of modem Sierra Wireless EM7455.
> Without success.
> 
> I download the latest version of libqmi from its Git repository.
> I satisfy compilation prerequisites.
> I compile and install libqmi without errors.
> When the firmware starts, I see error:
> Error: error downloading image: couldn't write in session: timed out 
> waiting to write

I'm honestly not sure, I was hoping Bjorn or Aleksander would chime in
here with some debugging help.

Dan

> 
> _Testing environment_
> OS: Fedora 27 (Twenty Seven)
> kernel: 4.15.14-300.fc27.x86_64
> qmi-firmware-update 1.21.0
> 
> 
> _Hardware_
> Model: EM7455
> USB ID: 413c:81b6
> 
> 
> _Firmware version_
> Series: SW92x30
> Firmware image: SWI9X30C_02.24.03.00.cwe
> Firmware config: SWI9X30C_02.24.03.00_VODAFONE_001.001_000.nvu
> 
> _
> Command_
> qmi-firmware-update \
> --update \
> -d $USB_ID \
> $FIRMWARE_IMG \
> $FIRMWARE_CFG \
> -L /tmp/qfu.log
> 
> 
> What is the reason?
> What troubleshooting steps can I take?
> 
> /Note: ///I am not a developer. /I do not understand the source code
> of 
> libqmi./
> 
> Thank you in advance,
> Pavlin Georgiev
> 
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