EM7455 fail to upgrade firmware

IoT Modules
1

FDT version: 2.0.2012.0
Awaiting suitable port or adapter …
Switching to boot & hold mode …
Disabling selective suspend …
Awaiting download port …
Downloading images …
Writing image -
Flashing image
Enabling selective suspend …
Awaiting adapter …
Checking update status …
Firmware download failed.
Primary error code: 67 - Firmware update process timeout.
Secondary error code: 0 - Not applicable.
Device error code: 0x0 - Unknown device error code.

Preexisting images information:
Current:
Firmware:
ImageId: 002.072_000
BuildId: 02.33.03.00_GENERIC
Configuration:
ImageId: 002.072_000
BuildId: 02.33.03.00_GENERIC
Final images information:
Current:
Firmware:
ImageId:
BuildId:
Configuration:
ImageId:
BuildId:

OEM PRI:

IMEI:

Total time elapsed: 480141 ms.

Time to switch to boot mode: 18609 ms.

Images downloaded:
Image ID: ??
Build ID: 02.38.00.00?
write time: 5031 ms
additional flash time: 109 ms

Time to reset to application mode: 166813 ms.

Press Enter to continue …

Hi to all. I can’t manage to upgrade to the latest firmware on this module. I have fdt2 , cwe , nvu in the same folder and i get the above. Also if i change sim i need to wait for a long time and with many restarts to be recognized. My laptop is a Lenovo T470s on Windows 10 x64. Do you have any solution?

2

have you tried the EXE for upgrading FW?

https://source.sierrawireless.com/resources/airprime/minicard/74xx/em_mc74xx-approved-fw-packages/#sthash.iakDkt98.dpbs

3

Yes, the upgrade process made with the .exe

4

what is the current FW (i.e. ati3) in your module now?

5

The current is 2.33.03

6

how about using fdt after “AT!BOOTHOLD”?

e.g.
fdt2.exe -f xxx.cwe xxx.nvu

7

I will try this later and post results here