Today I asked for and retrieved firmware updates by mail from SODAQ (thanks for that). However, UEUpdater failed to update the firmware of my SARA N211 NB-IoT Shield (with crowduino).
Because the ATI9 command did not work for me, I first tried updating to version A07. But, this failed. Now my AT commands are not working anymore and if I retry to update the firmware, UEUpdater gives the following feedback for a few seconds:
“Waiting for UE to reboot to establish communication”
“Update in progress (reset UE if no response after 10 seconds)…”
Then, it fails with this message:
“Failed: Timed out trying to establish connection”
Before I tried updating the firmware, I had version V100R100C10B656 (Retrieved by executing AT+CGMR).
I already searched through the forum to see if I could fix the problem. I found these posts:
However, these solutions did not work for me. I also see posts about resetting the User Equipment, but I don’t know how I can do this.
Does someone know what I can do to fix my problem?
I found another post that is very detailed in how to update the firmware with a USB to Serial converter:
So I bought a converter, but while I wait until it arrives I have a some questions about this update method:
In the post is mentioned that different versions of CodeLoader are needed for different firmware versions. I read in the User Guide of UEUpdater that it replaces CodeLoader. Can I expect that this method of updating the firmware also works with UEUpdater?
In the post it says “connect the RX, TX and the GND of the USB-to-Serial converter to the top of the shield (RX=D0, TX=D1)”. I want to make sure I’ll use the right ports, as I see multiple GNDs. So, are these ports I need to use?