解决Ubuntu adb无法连接上android手机

开发环境

Lenovo 手机, android 4.0.1

Ubuntu 14.04

adb version: Android Debug Bridge version 1.0.31

解决步骤

断开手机与电脑连接，执行以下命令，查看自己电脑里有什么usb

lsusb

得到输出：

Bus 002 Device 004: ID 04f2:b272 Chicony Electronics Co., Ltd Lenovo EasyCamera
Bus 002 Device 003: ID 1c4f:0032 SiGma Micro
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0bda:0139 Realtek Semiconductor Corp. RTS5139 Card Reader Controller
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

连接上手机,再次执行

lsusb

Bus 002 Device 004: ID 04f2:b272 Chicony Electronics Co., Ltd Lenovo EasyCamera
Bus 002 Device 003: ID 1c4f:0032 SiGma Micro
Bus 002 Device 013: ID 17ef:7513 Lenovo
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0bda:0139 Realtek Semiconductor Corp. RTS5139 Card Reader Controller
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

通过比较，多了三行信息：

Bus 002 Device 013: ID 17ef:7513 Lenovo

可以看到这个Lenovo手机的设备ＩＤ就是：17ef

vim打开/etc/udev/rules.d/70-android.rules

添加一行

SUBSYSTEM=="usb", SYSFS{idVendor}=="17ef", MODE="0666"

其中这个17ef就是刚刚查到的设备ＩＤ，0666表示读写权限

保存退出vim

sudo chmod a+rw /etc/udev/rules.d/70-android.rules

,给文件添加读写权限

sudo adb kill-server

sudo adb devices

List of devices attached
8SHQ31202505YD6042E0    device

这样在就成功了，不知道为什么最后两个命令一定要sudo

没有sudo的话，就会输出

List of devices attached
????????????    no permissions