Important News regarding Cat-M1 and NB-IoT Cellular range
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@eric-waai I've got the same questions, so thanks. ;)
- and one more: What about RMA shipping costs? Who will pay?
The machine is working as good as it's code.
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@eric-waai you might be able to fix the bricked modem yourself, but it's a difficult process. We'll write it up next week, so in case you want to try, you'll be able to. (Note: you can permanently damage the board and if that happens, we can't replace it for you)
I have asked the team about guard band networks.
The modem needs to be recalibrated. If you need to use the additional bands, you'll have to open a RMA request.
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@rskoniec when we've confirmed the issue with your returned board, we'll replace it and ship it back. However, you'll cover the shipping cost of the module to us. When your RMA request is approved, you'll get the details of the shipping process.
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@dan Fred wrote "We will then upgrade your module to work on the new bands." You wrote "(...) we'll replace it and ship it back." So upgrade or replace? If upgrade - isn't it possible to upgrade the firmware ourself? (1st part of the 1st question of @Eric-Waai). Also no answer for his 3rd question.
The machine is working as good as it's code.
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@Fred
I would like to sum up issues I am experiencing with FiPy and G01 (Sequans FW NB1-38729, Pycom FW 1.18.1.r2 ) connected to NB-IoT network of Slovak Telekom (band 20, in-band, Ericsson eNodeB).1. Connection stability
After some time (several hours to a day) it is not possible to establish TCP socket connection any more. LTE.isattached() and LTE.isconnected() always return True. This state remains unchanged until next reset. Current work-around is auto-restart when this happens.2. DNS is not working over NB-IoT connection
Issue is described here:
https://github.com/pycom/pycom-libraries/issues/573. NTP client is not working reliably
Not directly related to LTE connectivity, but it is related to 2.
NTP sync client seems not to work properly when IP address is defined instead of FQDN. It sometimes works and sometimes not.
There is a forum thread which may be related to this issue:
https://forum.pycom.io/topic/1079/rtc-ntp-time-server-not-working-on-static-ip/174. Availability of PSM and eDRX
This is not really and issue but a feature request as battery-powered applications are almost impossible without these features. I am already in email contact with Abigail regarding this request, but I am mentioning it here as other users are interested in these features as well:
https://forum.pycom.io/topic/3394/psm-edrx/2I would like to ask you or your colleagues for a statement.
I would also like to ask other users to provide their experience. -
@dan
I need band 8 support for my local provider.
so if the modules have to ga back to pycom i don't need to take the gamble and try unbrick the module myself.
i contacted the RMA and will send the modules in for an update. -
@rskoniec @Eric-Waai No, you can't upgrade it yourself. The band information is written in an area on the modem that can only be overwritten with a production programmer and proprietary software. It is the same modem as the previous modules
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@dan OK, thank you. Everything is clear now. ;)
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@fred We tried to contact RMA@pycom.io but didn't receive any answer. This is a sad situation for all of us who desperately wait for band 8 support.
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@elizar
same here
i got one response to fill in details after that nothing
maybe they get flooded with RMA requests? -
@Elizar, @Eric-Waai How is your RMA procedure going? Any progress?
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@rskoniec I can't comment on their requests' status, but currently all RMA requests are processed.
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@rskoniec
my modules are at pycom for some days now. the request is being processed -
@eric-waai Thank you for the info.
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@dan Will new GPy orders placed through the Pycom webshop automatically include the additional band support?
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@kevin They do. I already received some upgraded Gpys last week with band 8 support.
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@elizar Thank you for confirming this!
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