gpy modem upgrade alternative

[kjm]

While the instructions at https://docs.pycom.io/tutorials/lte/firmware/ work, I find the whole sd card/serial uart pathway for GPY modem upgrades cumbersome. Herewith an alternative approach;

1. upgrade the gpy to the latest version with the Pycom firmware updater tool
2. check your modem version with lte.send_at_cmd('ATI1').split('\r\n'), usually 33080 for most new GPYs

>>> import network; lte=network.LTE()
>>> lte.send_at_cmd('ATI1').split('\r\n')
['', 'UE5.0.0.0d', 'LR5.1.1.0-33080', '', 'OK', '']

3. mod your project settings in Atom so that elf & dup extensions are in sync_file_types for uploads

"sync_file_types": [
        "py",
        "txt",
        "log",
        "json",
        "xml",
        "html",
        "js",
        "css",
        "mpy",
        "pem",
        "cet",
        "crt",
        "key",
        "dup",
        "elf"

4. put updater.elf(only needed for 1st time modem upgrades) & upgdiff_33080-to-41065.dup files in your Atom
   upload folder
5. click upload. Despite claims to the contrary they both fit in the gpy flash
6. Do import sqnsupgrade; sqnsupgrade.run('/flash/upgdiff_33080-to-41065.dup', '/flash/updater.elf') for 1st time modem upgrades or import sqnsupgrade; sqnsupgrade.run('/flash/upgdiff_33080-to-39529.dup') for subsequents

>>> import sqnsupgrade; sqnsupgrade.run('/flash/upgdiff_33080-to-41065.dup', '/flash/updater.elf')
<<< Welcome to the SQN3330 firmware updater [1.2.5] >>>
>>> GPy with firmware version 1.18.2.r6
Attempting AT auto-negotiation...
Session opened: version 1, max transfer 2048 bytes
Sending 430284 bytes: [########################################] 100%
Waiting for updater to load...
Attempting AT wakeup...
Session opened: version 1, max transfer 8192 bytes
Sending 1658508 bytes: [########################################] 100%
Waiting for modem to finish the update...
<<<=== DO NOT DISCONNECT POWER ===>>>
Resetting......
Your modem has been successfully updated.
Here is the current firmware version:

UE5.0.0.0d
LR5.1.1.0-41065

7. Enjoy the fruits of your effort

>>> sqnsupgrade.info()
<<< Welcome to the SQN3330 firmware updater [1.2.5] >>>
>>> GPy with firmware version 1.18.2.r6
Your modem is in application mode. Here is the current version:
UE5.0.0.0d
LR5.1.1.0-41065

[robert-hh]

@kjm For people using Atom the this is a possible approach. But not all people do, and this approach makes quite a few assumptions, like that the image fits into flash. And there a lot if threads about problems with Atom and syncing. Your approach is an alternative, but people will too have issues with it.