New device: Cat-M1 and NB-IoT upgrade

[Xykon]

@le_wildfox I was told by the LTE team that the upgrade order doesn't actually matter. I'm planning to do a few more tests today before updating the instructions.

[le_wildfox]

@xykon oh, okay. However I have this issue when upgrading:

https://forum.pycom.io/topic/3460/new-cat-m1-nb-iot-firmware-10-july-2018-upgrade-failure:

Any way to resolve it?
Thanks!

[le_wildfox]

@xykon Hello again, have you got any news about the failed upgrade using new firmware below?
Big thanks!

[Xykon]

@le_wildfox We have a new firmware that I'm testing right now. We also received a new bootrom that will allow recovery if the flashing fails. I'm testing all this now and will provide more details as soon as possible.

At the moment I would suggest to refrain from trying to use the new NB-IoT firmware until the update is available. I'm trying as hard as I can to make this available but at the same time I don't want to risk more people loosing access to their devices.

[le_wildfox]

@xykon Thanks for your response. As I'm currently working on prototype which should work with Huawei powered NB-IoT network, really hope to hear from you soon if the tests have been completed and the new firmware has been made available.
Last time I tried on their test lab, all I got was something like:

+CEREG : 2,4

Cheers!

[Xykon]

@le_wildfox A new NB-IOT firmware 37781 is now available. I have also updated the upgrade scripts so please make sure you fetch the latest version.

[agotsis]

@xykon I just tried to install the latest NB-IoT firmware to my FiPy connected to a PyTrack board. Prior to this I have successfully installed FiPy-1.18.0.r1.tar.gz. Unfortunately I am stuck in the following point:

>>> sqnsupgrade.run('/home/gotsis/FIPY_GPY_NB1_37781.dup', 921600, port='/dev/ttyACM0',resume=True)
<<< Welcome to the SQN3330 firmware updater >>>
Starting STP (DO NOT DISCONNECT POWER!!!)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/gotsis/git/pycom-libraries/lib/sqnsupgrade/sqnsupgrade.py", line 144, in run
    raise OSError("Invalid answer '%s' from the device" % response)
OSError: Invalid answer 'b''' from the device

As seen from the code I am running this through the serial port, not an SD.
Any ideas, suggestions?

Many thanks!

[Xykon]

@agotsis The resume=True option will only work if the modem is already in upgrade mode.

What do you get when you power-cycle the module and run the upgrade without the resume option?

[agotsis]

@xykon I actually added the resume=True to address the "AT+SMSWBOOT=3,0 Failed!" error as mentioned in another post... If I leave resume out of the game I am stuck in that point.
I am now trying to repeat the procedure using an SD card.

UPDATE: And this is the error I get when using the SD card:

Entering recovery mode
AT+SMSWBOOT=3,0 response b''
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "sqnsupgrade.py", line 130, in run
OSError: AT+SMSWBOOT=3,0 failed!

Thanks!

[Xykon]

@agotsis Unfortunately it looks like you ran into one of two issues I identified with Sequans which cause the LTE modem to become unresponsive.

We are still waiting for Sequans to produce a permanent solution that will allow us to fix both issues permanently to make sure the modem is always recoverable.

I am working on making documentation available that will allow accessing the modem console logs through one of the test points on the bottom of the module. This will help us identify the exact issue (or issues) causing this.

I will post more as soon as possible.

[agotsis]

This post is deleted!

[agotsis]

@xykon Are there any updates for resolving the firmware upgrade error?

[dan]

Hi @agotsis, Please check this post for more info about this issue. Hope this helps!