Firmware before: 657_09gg.Q24PL001 1954500 102706 18:44
New firmware: 657e09gg.Q24PL001 1961548 103107 17:56
I did as the firmware release document instructs (FW6.57e release), using hyperterminal:
- Check and upgrade downloader
- download firmware specific to modem type
- use at+cfun=1 to reset modem when download complete and wait for the OK response
The problem is after that, the at+cfun=1 does nothing. The modem needs to be reset by hardware. When reset by hardware, the RF functionality is dead. I cannot attach, the error response is +CME ERROR: 148, with a wonderful wavecom meaning if looked up as “unspecified gprs error”???
Going back to the old firmware does not solve the problem. I have read the AT command set documentation and I cannot find any setting that would somehow disable the cellular features other then not setting the +wfm parameters correctly, which I have checked against a working unit.
I also initially tried to use the WDLWin tool (version 126.96.36.199), and accidentally erased everything ( objects, customization files, openat application) trying to upgrade the firmware unsuccessfully because it does not support the .dwl file extensions, go figure?
If anyone has any ideas to offer I would really appreciate them, thanks.