If I activate the Sleep mode on Q2698/R7.50.0.A2.201302191346, it goes to sleep mode properly. I know that because I’m monitoring the power consumption :
AT+W32K=1,1
OK
<Set DTR=1 : Sleep>
<...Wait a few seconds...>
<...Modem enters sleep mode>But then, if I wake up the modem, connect to GPRS, open a socket and disconnect, the modem never goes back to sleep mode again :
<Set DTR=0 : Active>
AT+WIPCFG=1
OK
AT+WIPBR=1,6
OK
<...>
AT+WIPBR=4,6,0
OK
AT+WIPCREATE=2,1,<ip>,<port>
OK
AT+WIPDATA=2,1,2
OK
<HTTP stuff>
SHUTDOWN
AT+WIPBR=5,6
OK
AT+WIPBR=0,6
OK
AT+WIPCFG=0
OK
<Set DTR=1 : Sleep>
<...Wait a few minutes...>
<...Modem never goes back to sleep mode again !>Please, tell me if I’m doing something wrong.
If not, I hope this issue will be fixed with next firmware …