WP76xx not waking up from ULPM

1

Hi,
we are facing problems with wakeup from ULPM. This was working before, but now suddenly stopped.

We are using stock firmware: 9999999_9907152_SWI9X07Y_02.37.03.05_00_GENERIC_002.115_002-full.spk

The only thing we did was setting a wake-up timer via pmtool:

pmtool bootOn timer 30

afterwards we checked with at commands:

!POWERWAKE:
ULPM TIMER: 30
PSM TIMER: 14400,ACTIVE TIMER:20,SYNC: 2

initiate the shutdown:

pmtool shutdown

Now the module powers off, but never powers on again.
After a power cycle, the module boots but then powers off again.
We checked with at commands:

!POWERMODE: No request, status=2-Initialized

When setting it back with at!powermode=0 the module stops shutting down after a reboot:

!POWERMODE: mode=0-DISABLE, status=9-PSM disabled

Whats happening here? Why is it not waking up and why is it powering off after a powercycle?

2

I have tried the following in WP7608, module can wake up after 5 minutes.



ati3
Manufacturer: Sierra Wireless, Incorporated
Model: WP7608
Revision: SWI9X07Y_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14
IMEI: 352913090512345
IMEI SV: 14
FSN: XG207430712345
+GCAP: +CGSM,+DS

OK
at!powerwake=1,300
OK
AT!powermode=3
3

Ok, when doing it like this, it is working.

So we need to change the app that was working fine before to use AT commands?

Does this interfere with USB_SS?

4

i have connected the USB cable