While using EM7431 module, we encounter the QMI interface to be unresponsive in few conditions.
- After power cycling, leaving the module for ~20 second, the first QMI request to the module is giving timeout
“error: couldn’t create client for the ‘nas’ service: CID allocation failed in the CTL client: Transaction timed out”.
From second command inwards, it working properly
- After continuously using for 2 days, the internet is stopped, QMI and AT command interfaces are unresponsive. We had to manually reset the module to make it work.
For the first issue, i would like to know if the module is going to some sleep or power saving mode because of inactivity. For second, How to debug this issue.
I am using qmicli command for checking.
Firmware version of module : [/dev/cdc-wdm0] Software version: S.AT.2.5.1-00666-9655_GEN_PACK-1
Revision: ‘SWI9X50C_01.14.03.00 b06bd3 jenkins 2020/09/23 10:53:35’