December 11, 2019 at 09:32 #508
I’m having trouble attaching my fipy to the lte-m network..
It just says Attaching… and does not get any further.
I have tried several SIM cards, expansion boards and antennas, but nothing seems to work.
Anyone have any ideas what I can try next?December 20, 2019 at 12:27 #535PontusKeymaster
What seems to work in situations like this is to update both the device and modem firmware on the FiPy to the latest release.
You can find detailed instructions on the Pycom websites on how to do this:
- Device firmware upgrade: https://docs.pycom.io/gettingstarted/installation/firmwaretool/
- Modem firmware upgrade: https://docs.pycom.io/tutorials/lte/firmware/
If for some reason it still doesn work you could try to “reset” the modem by issuing the following commands in the REPL:
from network import LTE
lte = LTE()
You can then check if the device is attached with the following line:
It should return
Trueif the modem is attached to the network.
Hope it works! 🙂January 10, 2020 at 13:31 #606
Thank you for your input. The REPL commands did the trick. 🙂February 11, 2020 at 22:46 #761michaelstornesParticipant
Perfect! This solved my issue! I thought my sudden lack of LTE-attachment was due to an update of the expansion board (3.1), but apparently not. I should have come here sooner …March 4, 2020 at 22:18 #779
I am new to this. It stops here. I have tried to update the firmware.
Do I have the newest? Hope someone could help me out here 🙂
Connecting to COM5…
Smart Provisioning started in the background
See https://docs.pycom.io/smart for details
Running example code…
Modem in using LTE-M firmware (UE220.127.116.11d/LR18.104.22.168-39529).
Started connecting to the network…
> AT!=”addscanfreq band=20 dl-earfcn=6352″
>> +CSQ: 99,99
Attaching…March 4, 2020 at 22:37 #780PontusKeymaster
Did you also update the modem firmware (not just the FiPy board firmware)?
You can follow the steps described here: https://docs.pycom.io/tutorials/lte/firmware/
We’ve made the modem firmware available in this GitHub repository, since Pycom has password protected the files on their server: https://github.com/TelenorStartIoT/sequans-modem-firmware
In your case you want the LTE-M (Cat M1) firmware.
You can also try the commands that are described at the top of this thread. You can access the REPL (the window where you can read the program output) by pressing
CTRL + C. This will stop the program and give you three arrows
>>>where you can type your Python code line-by-line. It should look like this if you’ve entered the REPL successfully:
Hope this helps!March 11, 2020 at 22:40 #790
I dont know if you see this screenshot in the link above, but I got a error in line 14.
Still the same error message: Attaching…
I have updated the firmware
Modem in using LTE-M firmware (UE22.214.171.124d/LR126.96.36.199-41065).
What do I do next??March 11, 2020 at 22:48 #791
I run the code from your answer to tuvarambre above:
That returned FalseMarch 26, 2020 at 10:05 #807
Sorry for the late answer. This is a question we don’t have a simple answer to yet.
We experience that it often helps to remove the plastic caps on RTS and CTS on your expansion board.
You should also check that the antenna and sensor-pins are in the correct slots.
If none of the above works we recommend you try with another SIM card. You can order a new free SIM card here: Start IoT SIM card
I hope one of the above solutions will solve the problem.
Keep us posted, and we will investigate further to find other possible solutions.
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