EM7565 firmware updates

[Reinhard Speyerer]

On Thu, Mar 08, 2018 at 01:41:41PM +0100, Bjørn Mork wrote:
> Hello,
> 
> don't know if you've noticed, but Techship have made a "new" (still from
> 2017...)  firmware available, as part of a new Windows driver package:
> https://techship.com/downloads/sierra-wireless-em7565-b4782-windows-driver-package-and-firmware-01020100-update/
> 
> And Google helps those of us who aren't qualified to be Techship
> customers...
> 
> But I am still facing the issue I saw when I tried faking a firmware
> update on the EM7565: No matter how I switch it into "QDL mode", it ends
> up speaking the "sahara" protocol.  And the qmi-firmware-update tool
> just bugs out when it receives the sahara hello (this is the end of the
> attahced full log):
> 
> [08 Mar 2018, 13:16:33] [Debug] [qfu-qdl-device] opening TTY: /dev/ttyUSB3
> [08 Mar 2018, 13:16:33] [Debug] [qfu-qdl-device] setting terminal in raw mode...
> [08 Mar 2018, 13:16:33] [Debug] [qfu,dload-message] sent sdp:
> [08 Mar 2018, 13:16:33] [Debug] [qfu-qdl-device] >> 70:00:00 [3, unframed]
> [08 Mar 2018, 13:16:33] [Debug] [qfu-qdl-device] >> 7E:70:00:00:14:46:7E [7]
> [08 Mar 2018, 13:16:33] [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
> 
> 
> And the bootloader does not want to switch to sahara "command mode" the
> way I know MC74xx/EM74xx can.  So the trick where you could change from
> sahara to the "normal" download protocol does not work with the EM7565.
> 
> Just to be sure, I even tried the "MC7xxx_Image_Management" sample
> application from the most recent version of the Sierra Wireless QMI SDK.
> It doesn't explicitly state EM7565 support, but it has gotten a test for
> eGOBI_DEV_SERIES_9X07_9X50 so I assume it us supposed to support it.
> But this application is even less successful.  It doesn't even detect
> the failure, but just gets stuck after receiving

Hi Bjørn,

AFAIK MC7xxx_Image_Management is actually an older application which
may not have been updated for the EM7565 (yet). Could you please retry
with the Firmware_Download sample application from version 04.00.12 of
the Linux QMI SDK and see if you get any further?

Regards,
Reinhard