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3g modem can not reconnect when airplane on/off

Question asked by Wu Roy on Nov 5, 2014


We add the 3G modem to our board

After boot, we can surf the internet.

We happened two problems.

1. When we turn on airplane on and the off, the 3G could not be reconnected.

2. When we run one hour, we loss the 3G signal.


Our board detail is as below:
Hardware:  imx6dq
OS:        Android 4.3 sabresd
3G modem:  Huawei MU609
3G modem interface: USB


Could anyone get us some suggestions?

Thank you and hope that we can get some help from you.


The attached files is log files.

Original Attachment has been moved to:

Original Attachment has been moved to: