PyCom GPY NB IoT firmware failed

[Kimlorentz]

I tryed many times updating the firmware of the modem but only get error updating the updater.elf file.
Seen many have same error and no support.
Can anyone help me? or I have to throw away 2 devices.

>>> from network import LTE
>>> lte = LTE()
>>> lte.reset()
>>> lte.disconnect()
>>> lte.dettach()
>>> from machine import SD
>>> sd = SD()
>>> os.mount(sd, '/sd')
>>> os.listdir('/sd')
['System Volume Information', 'NB1-41019.dup', 'updater.elf', 'upgdiff_33080-to-41019.dup', 'upgdiff_39529-to-41019.dup', 'upgdiff_40343-to-41019.dup', 'upgdiff_41065-to-41019.dup']
>>> import sqnsupgrade
>>> sqnsupgrade.info()
<<< Welcome to the SQN3330 firmware updater [1.2.5] >>>
>>> GPy with firmware version 1.18.2.r5
Your modem is in application mode. Here is the current version:
UE6.0.0.0
LR6.0.0.0-41019

IMEI: ************************

>>> sqnsupgrade.run('/sd/updater.elf')
<<< Welcome to the SQN3330 firmware updater [1.2.5] >>>
>>> GPy with firmware version 1.18.2.r5
Attempting AT wakeup...
Session opened: version 1, max transfer 8192 bytes
Sending 371307 bytes: [                                        ]   1%SRSP header too small: 0
Code download failed, aborting!
>>>

[tobz]

I;ve got the same problem trying to update for lte-m1.
Got nothing to add, but wan to subscribe to this thread in case something comes up.