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5 years, 5 months ago.
Ublox C027 (LISA U20) Firmware and SIM issues
Hello, I am trying two troubleshoot two problems on my recent C027 (LISA, i.e. GSM): 1. On OSX (10.6.8 and 10.9.4) copying bin files (downloaded from the online compiler) to the mounted MBED volume does not always work. If it does work, I do not see the .bin files on the volume the next time it is mounted (unlike my MBED LPC1768 and LPC11U35 which do hold all the binaries and load the most recent that was downloaded).
-When copying (drag-n-drop with Finder or using cp in a terminal) sometimes the drive is unmounted prior to finishing transfer -Even with the preinstalled Nov.2013 firmware, I was able to copy the HelloWorld example, but had trouble when trying to copy SupportTest example. -When I did upgrade to the most recent firmware, I was able to copy over SupportTest initially, but had trouble when I copied over HelloWorld and then SupportTest for a second time. I found the following links helpful for firmware, flashing instructions, and sync mounting options for OSX:
-I tried re-flashing with the most recent firmware and the one from Feb.28 2014 (v2.01) and eventually reverted back to Nov. 2013 version and using a windows box so I could troubleshoot my second issue using the U-Blox m-center software.
-Why can't the C027 show the most recent binaries that were downloaded to the MBED drive (in addition to not being able to copy it seamlessly, which I though the April 2014 firmware was intended to fix for Linux and OSX)?
2. I get a "CME error: SIM Wrong" when issuing "AT+COPS=0" or "AT+CPIN?", what does this mean?
-I am using the AT Terminal in m-center software v1.1.0 (after copying over C027_ModemTransparentSerial binary)
-I have a goPhone (AT&T US) SIM card installed (verified, using a smartphone, that SIM can register to a network)
-I verified that the AT&T has provisioned my account with the SIM Card and LISA-U20 IMEI
-On the m-center homepage the SIM status is "
-" and security is "Disabled" (I tried setting a pin with my smartphone also, but one entering the same pin using the m-center homepage, was told it wasn't correct)
-I do get a response of the available networks when asking for a list of network operators AT+COPS?"