1、基本信息介绍如下：
开发板：tily4412-1312增强型
3G模块：pcie-mini接口，接的中兴MF210 3G模块
软件包：使用光盘为FriendlyARM-4412-DVD-20140225
Android启动后用uname命令获取信息为：Linux FriendlyARM 3.5.0-FriendlyARM #1 SMP PREEMPT Sat Jan 25 10:55:09 HKT 2014 armv7l GNU/Linux
2、问题描述：
具体表现：接上3G天线，重启系统后没能找到信号
串口表现：一直在循环输出以下log
[ 1152.585000] usb 1-2.3.1: new high-speed USB device number 42 using s5p-ehci
[ 1152.690000] usb 1-2.3.1: New USB device found, idVendor=19d2, idProduct=0117
[ 1152.690000] usb 1-2.3.1: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[ 1152.690000] usb 1-2.3.1: Product: ZTE WCDMA Technologies MSM
[ 1152.690000] usb 1-2.3.1: Manufacturer: ZTE,Incorporated
[ 1152.700000] option 1-2.3.1:1.0: GSM modem (1-port) converter detected
[ 1152.705000] usb 1-2.3.1: GSM modem (1-port) converter now attached to ttyUSB0
[ 1152.715000] option 1-2.3.1:1.1: GSM modem (1-port) converter detected
[ 1152.715000] usb 1-2.3.1: GSM modem (1-port) converter now attached to ttyUSB1
[ 1152.720000] option 1-2.3.1:1.2: GSM modem (1-port) converter detected
[ 1152.730000] usb 1-2.3.1: GSM modem (1-port) converter now attached to ttyUSB2
[ 1214.605000] usb 1-2.3.1: USB disconnect, device number 42
[ 1214.605000] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 1214.605000] option 1-2.3.1:1.0: device disconnected
[ 1214.605000] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 1214.610000] option 1-2.3.1:1.1: device disconnected
[ 1214.615000] option1 ttyUSB2: option_instat_callback: error -108
[ 1214.620000] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 1214.630000] option 1-2.3.1:1.2: device disconnected
这是神马情况？ 请帮忙分析一下，谢谢
