problems updating sqns firmware

[Eric Waai]

i'm trying to get the newest firmware on the LTE modem of the fipy
but when i do this : sqnsupgrade.run('/sd/FIPY_NB1_37781.dup')

i get :

  File "<stdin>", line 1, in <module>
  File "/flash/lib/sqnsupgrade.py", line 106, in run
OSError: [Errno 2] ENOENT

this is the firmware running on the fipy
Pycom MicroPython 1.18.0 [v1.8.6-849-046b350] on 2018-06-01; FiPy with ESP32
i downloaded the updated versions of the pycom libraries today.

i tried formatting the SD card but that doesn't help

any thoughts?

[timh]

@eric-waai just checking, did you mount the SD device ?

[Eric Waai]

yes i did

the new sqnsupgrade.py file does that too by the way on line 87 so i figure it isn't needed to do that.

also tried with mounting doesn't make a difference

[Eric Waai]

getting further on this problem
found list of OSErrors ENOENT means No such file or directory

there was a typo in the file path

at this point i'm getting other errors at line 121

>>> sqnsupgrade.run('/sd/FIPY_GPY_NB1_37781.dup',921600)
<<< Welcome to the SQN3330 firmware updater >>>
Entering recovery mode
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/flash/lib/sqnsupgrade.py", line 121, in run
TypeError: extra keyword arguments given
>>> 

reading the sqnsupgrade.py says that the line does

print('Resetting.', end='', flush=True)

guessing it is not important that to print something i removed the line
running the upgrade again gives me this

>>> sqnsupgrade.run('/sd/FIPY_GPY_NB1_37781.dup',921600)
<<< Welcome to the SQN3330 firmware updater >>>
Entering recovery mode
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/flash/lib/sqnsupgrade.py", line 123, in run
  File "/flash/lib/sqnsupgrade.py", line 74, in wait_for_modem
TypeError: extra keyword arguments given

reading the code at that line 74 gives

print('.', end='', flush=True)

this makes me think that there is something wrong with the call of the print() function

so i removed the

flush=True

from both lines. after running the sqnsupgrade i now get the following

>>> sqnsupgrade.run('/sd/FIPY_GPY_NB1_37781.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
Code download failed, aborting!
>>> 

this is how far i am at he moment still looking in to this
any help is appreciated

edit:

after some more trying got some more info
if i try the update again i get this error

>>> sqnsupgrade.run('/sd/FIPY_GPY_NB1_37781.dup',921600)
<<< Welcome to the SQN3330 firmware updater >>>
Entering recovery mode
AT+SMSWBOOT=3,0 response b''
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/flash/lib/sqnsupgrade.py", line 131, in run
OSError: AT+SMSWBOOT=3,0 failed!

the modem is not responsive to any AT commands
if i send just AT+CGMI i get ERROR

i tried to locate the cause of the error of the code download
i eddited the sqnsupgrade.py to find out where this error is generated
it is in line 155

except:
        blob.close()
        print('Code download failed 2, aborting!')
        abort = True

i'm really out of ideas for the moment