I have a problem with a 7355 module I am using to learn how WWAN works: it crashes Windows 10 during sleep.
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000009f (0x0000000000000003, 0xffffe40ddfbf48d0, 0xfffff803621ac870, 0xffffe40ddd1ff9d0). A dump was saved in: C:\WINDOWS\MEMORY.DMP. Report Id: e9abc860-abf0-4add-a15b-0a58ec63837b.
The sleep mode is “Connected Standby” (CSEnabled=1 in
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power)
I have collected a few MEMORY.DMP and analyzed them with WinDBG: in each one of them, swg3kmbb00.sys is indicated as the probable cause:
Use !analyze -v to get detailed debugging information.
BugCheck 9F, {3, ffffe40ddfbf48d0, fffff803621ac870, ffffe40ddd1ff9d0}
Implicit thread is now ffffe40d`cc370040
*** ERROR: Module load completed but symbols could not be loaded for swg3kmbb00.sys
Probably caused by : swg3kmbb00.sys ( swg3kmbb00+7750 )
The issue seems to happen after a few hours, when the system goes into suspend to disk. I also see in the logs elements in favor of that:
USB device draining system power when system is idle.
USB Device: VID: 0x1199 PID: 0x68A2 REV: 0x6
and:
Miniport Sierra Wireless Mobile Broadband Network Adapter, {fae8d8bb-b48e-4134-b1eb-20ab44a291fe}, had event Fatal error: The miniport has failed a power transition to operational power
Any suggestion on what I should try to change to reduce the crashes?
The custom options are:
AT!CUSTOM?
!CUSTOM:
ISVOICEN 0x01
STKUIEN 0x02
ADBENABLE 0x01
GPSENABLE 0x02
FASTENUMEN 0x03
GPSSEL 0x01
WAKEHOSTEN 0x01
NMEAENABLE 0x01
CFUNPERSISTEN 0x01
UBISTENABLE 0x01
GOBIIMEN 0x01
GPSREFLOC 0x01
SIMLPM 0x02
USBSERIALENABLE 0x02
I am trying at the moment to disable host wakeup, keep the sim powered, and use MBIM instead of QMI mode
AT!CUSTOM="WAKEHOSTEN",0
OK
AT!CUSTOM="SIMLPM",1
OK
AT!UDUSBCOMP=8
OK