> 2.7 | Troubleshooting

> gWinSwup dialog box | Meaning
> | Wrong firmware: You tried to install an older firmware version or the firmware of another Siemens module type. The ME instantly switches off.
> | Download failure on ASC0 / ASC1: a) The COM port is not free for the download. Probably, the host application or the Terminal program is still open. b) The baudrate selected with gWinSwup is higher than the maximum rate supported by the computer’s COM port.
> | Download failure on USB: Probably the ME was powered down. Restart the ME and close the host application or Terminal program. Then restart the firmware download.
> | a) Download failure on USB because the ME is still active on another interface, e.g. ASC0 / ASC1. Close all programs connected to ASC0 / ASC1. Ensure that only the USB interface is active and the virtual COM connected to the USB communicates with the Windows environment. The host application or Terminal program at the virtual COM port shall be closed as well. b) The error may also occur if the USB parameters set with AT^SCFG do not match the USB *.inf file. Ensure that the original usbmodem.inf file supplied by Siemens is available on the host device. Restore the factory defaults of the Siemens USB descriptors set with AT^SCFG, feature “Serial/USB/DDD” feature. See [2] for details on AT^SCFG.
> Solution 1: Solution 2: | Download abort on ASC0 or ASC1: This error message occurs if the download was aborted, e.g. after switching off the ME or disconnecting the power supply. The ME is no longer responding. If started via IGT the ME switches off after approx. 60s. Solution: Restart gWinSwup from ASC0 / ASC1 and check "No or invalid Firmware present in Module" (Solution 1). If the option remains unchecked (Solution 2) gWinSwup will automatically detect that no valid firmware is installed. During the download, the baudrate of the ME falls back to 57600 Baud (the value indicated in the gWinSwup dialog box is ignored). The firmware download takes about 10 minutes and completes successfully as described in Section 2.2. Important note: After the successful download, the ME will be set to the baudrate last detected by gWinSwup. However, this is not the original baudrate defined with AT+IPR, but the rate used by gWinSwup at the time the first download was aborted. If, for example, the aborted download procedure was done at 230400 Baud, the ME will, after the successful firmware transfer, also be set to 230400 Baud. To communicate with the ME, the host application must be set to the same baudrate. If the highest rate 460800 Baud was enabled when the download was aborted, but the host application cannot handle 460800 Baud you will need another program to communicate with the ME and to restore the original baudrate. You can use, for example, HyperTerminal that is normally integrated in a standard Windows XP or 2000 system.
> | Download abort on USB: This error message occurs if the firmware download was aborted, e.g. after switching off the ME or disconnecting the power supply. The ME is no longer responding. If started via IGT the ME switches off after approx. 60s. Solution: Restart the ME with IGT. Wait approx. 5s (this time is needed for Windows to enable the virtual COM port). Restart gWinSwup. Check the option “No or invalid Firmware present in Module”. The download process is performed in the same way as described in Section 2.2. Note: If the download fails and ends up with “ERROR: Cannot reopen USB port”, you may have started gWinSwup too early. Please try again as described above.