I just received what I believe is the latest version of firmware SIM900, 1137B11SIM900M64 ST. I did the upgrade and I try to implement without any results, commands reported in SIM900_Email_AT_Command_Manual_V1.02
One thing I find curious is that these new commands are not reported in the manual very last 1.05 of AT commands
Already beyond anyone had any experience with this version/, can tell where the problem is, or is it that there is a newer version of firmaware have to implement?
for each command to implement the response is ERROR. this is what tells me that probably this is not implemented
for example: cmmd resp
AT+EMAILCID? > ERROR
AT+EMAILCID=? > ERROR
AT+EMAILCID=1 > ERROR
and thus to each and every one of the commands reported in the manual.