RC7630 firmware update failed

IoT Modules RC76
1

I’m trying to update the firmware of RC7630, by run the one-click tool download from https://source.sierrawireless.com/resources/airprime/software/rc76xx/rc76xx-firmware-release-10,-d-,0/#sthash.O27ZknIX.dpbs
I want to connect to DOCOMO so downloaded RC76xx_Release10_DOCOMO_7630.exe

But, it returns following error message when running the update tool:

FDT version: 2.1.2303.0
Awaiting adapter …
Setting images preference …
Disabling selective suspend …
Firmware download failed.
Primary error code: 51 - Failed to switch device to BOOT&HOLD mode.
Secondary error code: 201 - Failed to switch device to QDL mode.
Device error code: 0x0 - Unknown device error code.

Preexisting images information:

  •    Current:*

  •            Firmware:*

  •                    ImageId:*

  •                    BuildId:*

  •            Configuration:*

  •                    ImageId:*

  •                    BuildId:*

Final images information:

  •    Current:*

  •            Firmware:*

  •                    ImageId:*

  •                    BuildId:*

  •            Configuration:*

  •                    ImageId:*

  •                    BuildId:*

OEM PRI:
IMEI:
Total time elapsed: 344 ms.
Images downloaded:

I can see some error code returned and no firmware infomation reported. No idea why and how to fix that. Can anyone help me?

2

how about putting the module to download mode first by typing “AT!BOOTHOLD” ?

3

Thank you for advice, but seems no help.
After typing “AT!BOOTHOLD” I got a OK response and then the module is disconnected from PC, looks like the AT command is working, but the update tool give the same error as before.

4

After AT!BOOTHOLD, module should be in DM only mode which is download mode.
So there should not be any AT command port