Cellular radio firmware release (SQN3330) for both Cat-M1 and NB-IoT

[kevin]

Same issue here, failing with "AT+SMSWBOOT=3,0 failed!" (full log is below). If/when this issue is resolved, please post the details here.

[IOAg]

@nathanh Hi, were you able to recover FiPy at the end?

[nathanh]

@ioag said in Cellular radio firmware release (SQN3330) for both Cat-M1 and NB-IoT:

@nathanh Hi, were you able to recover FiPy at the end?

Nope, @daniel asked me to send my unit back.

I tried to reload the actual Pycom firmware back onto it hoping that might reset the entire device and only made it worse, I can't event load the device now, REPL just shows un-ending loops of flash errors when I turn it on.

[kevin]

Update on my issue: I found that AT^RESET was required after flashing the board with new FW, and before attempting the sqnsupgrade procedure. After that, the upgrade seems to have completed successfully.

[vigmeister]

@kevin Thanks for sharing progress! I tried the same on the FiPy. I was able to keep the REPL alive until the AT^RESET command was sent (using uart.write() ), but no dice. Still stuck with the same symptoms.

[kevin]

@vigmeister Sorry it did not resolve your upgrade issue as well. Just fyi, I used the lte library to send the AT command from REPL:

>>> from network import LTE
>>> lte = LTE()
>>> lte.send_at_cmd('AT^RESET')

Probably doesn't make any difference though.

[cssmacs01]

@daniel I need some help here to see if my devices are bricked. I attempted to update the cellular radio firmware and it was taking a realllllyyyyyy long time to reset so I CTRL+C and now all my AT+cmds are Errors. How do I get back online?

[cssmacs01]

@cssmacs01 .....addtional information. I've gone through the code line by line and manually sent the AT CMDS through UART and it all works up until AT+SMUPGRADE and then it errors. Feels like the two devices I got from Digi-key are bad or I'm missing something.

[nathanh]

@cssmacs01 Just looking at your output there (and maybe I am reading it incorrectly), but are you sure you have the right firmware file because a) you were able to save it onto the flash and load it from there (and I thought it was too big hence needing the SD card) and it is only reporting the size of around ~780k vs the ~5.4mb that it should be.

[cssmacs01]

@nathanh Yes sir! For so much of my night I wasn't able to mount the SD, so that's why I went that route. I just finally mounted and it's transferring 5.5megs. Cross fingers!

[cssmacs01]

@nathanh You think I'm good?

[nathanh]

@cssmacs01 Still looks like you got something odd happening there but interesting that it states your version to be the latest... Guess this is one for the @administrators to comment on.

[micksta]

@nathanh

2 cents worth, used fileZilla and had a similar problem trying to transfer the upgrade ~5.4mb file. Would only transfer 786432 bytes (20 seconds ish) before timing out and closing the connection. So wrote part file only! - Fix for me was to mount card-folder (/sd) using script via serial REPL console, then use fileZilla (via wifi connection) to write entire 5.4mb file (to /sd path).

---- Script I used ----

from machine import SD
import os
import time
import gc

sd = SD()
os.mount(sd, '/sd')

#check the content
os.listdir('/sd')

#found this helps with NOT SHUTTING down Link after 20-30 Seconds, used filezilla while this was running to upload file

xx = 1
while xx < 40:
print('Going to sleep')
time.sleep(5) # in seconds
print('waking up')
print(str(xx))
xx += 1

os.unmount('/sd')
gc.collect()

[tealbrains]

@kevin Thanks, that fixed it.

[flo242]

@daniel

I seem to have run into an unrecoverable problem while trying to upgrade the modem with the latest CAT-M1 firmware (it had the stock firmware, no previous upgrade yet). I wanted to try NB-IoT, so I followed the instructions to first upgrade to the latest CAT-M1 firmware before flashing the NB-IoT firmware. I was using Pysense (firmware pysense_0.0.8.dfu) and FiPy (firmware 1.17.3.b1), connected via serial. No SIM card was inserted, because in my first try it caused the modem to not accept the initial AT+SMSWBOOT=3,0 command to enter the recovery mode.

>>> import sqnsupgrade
>>> sqnsupgrade.run('/sd/FIPY_GPY_CATM1_33988.dup', 921600)
<<< Welcome to the SQN3330 firmware updater >>>
Entering recovery mode
Resetting..
..
Starting STP (DO NOT DISCONNECT POWER!!!)
STP started
Session opened: version 1, max transfer 8192 bytes
Sending 5665583 bytes: [########################################] 100%
Code download done, returning to user mode
Resetting (DO NOT DISCONNECT POWER!!!).
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/flash/lib/sqnsupgrade.py", line 129, in run
  File "/flash/lib/sqnsupgrade.py", line 59, in wait_for_modem
KeyboardInterrupt:
>>>
>>> from network import LTE
>>> lte = LTE()
>>> lte.send_at_cmd('AT')
''

After waiting almost 5 minutes there was no hope that it would ever finish, and after CTRL-C the modem didn't reply anymore. After a hard-reset I also can no longer create an LTE object, it just sits there forever. Obviously I am unable to retry the firmware upgrade since the modem doesn't respond anymore, what other options are left?

Thanks in advance!

[tealbrains]

@flo242 Have you tried a "safe boot"?

[flo242]

@tealbrains Since I ran out of other options I even tried Safe-Boot but as expected it didn't revive the bricked modem (the FiPy itself works without any problem).

[jmarcelino]

@flo242
Please note the modem firmware update process takes quite some time to complete - possibly over the 5 minute mark.

Please let it do it's thing. Unfortunately its hard to tell what's the state of your modem now without running some diagnostics through the test points.

[JDeclerfayt]

Hi everyone,

Is there a reason why sequans cellular radio is not upgraded with the gpy last firmware?

I ask this as the sequans upgrade method never work with our 3 gpy. ( Issue created on https://pycomiot.atlassian.net/servicedesk/ but no answer for now ).

We waited months for the sequans upgrade so we could use Nb-IOT and progress in our R&D but now we're stucked with 3 pycom we can not use anymore...

Is it normal people have so much problems with this upgrade?

Thanks in advance

[danielm]

I successfully managed to upgrade my FiPy. I don't have any GPy but I have custom board with G01 ready. I am not able to try the upgrade, because there is no SD card slot on that board. About 10 days ago Daniel wrote me that they are working on scripts for upgrade through serial interface.

There was no new firmware release for about a month already. I just hope that there is not any hardware flaw in boards equipped with Sequans LTE modem.