i.mx6 HUAWEI MU609 3G porting

/*************************************************************************** * i.mx6 HUAWEI MU609 3G PO rting * Disclaimer: * This article is mainly to record the porting of 3G modules when viewing the data with some problems encountered, * using the workaround. * 2015-8-8 Sunny Shenzhen Nanshan Ping Shan village Zengjianfeng ***************************************************************** *********/First, reference documents:1. On Android4.2. 2 on the debug MU609 step, WCDMA http://blog.csdn.net/suntao222/article/details/8930744    2. Android DNS settings detailed graphics tutorial http://www.zhixing123.cn/android/android-dns-settings.html    3. Android DNS settings detailed graphics tutorial http://www.cnblogs.com/ltfbk/p/4081987.html    4. Android changes the USB device permissions http://dipeng.blog.hexun.com/70808343_d.htmlsecond, errors and solutions:1. Manual PPP connection error:1. Error symptom: Send (ATDT* About#^M) Expect (CONNECT)^M ATDT* About#^m^M NO CARRIER--failed failed (NO CARRIER)2Solution: It may be because the antenna is connected incorrectly because there are three antennas on it.2When you manually PPP connect, the ping does not have any response:1. Error symptom: cannot ping network2. Solution: There may be no setting Dns:setprop net.dns18.8.8.8third, ttyUSB0, ttyUSB1, ttyUSB2 no permission:1. Ueventd.freescale.rc/dev/ttyusb*0777Radio Radio

i.mx6 HUAWEI MU609 3G porting