C:\Users\root>adb install d:\rry_0514.apk
error: more than one device and emulator
- waiting for device -
error: protocol fault (status read)
# Kill and restart
$ adb kill-server
$ adb start-server
daemon not running. starting it now *
daemon started successfully *
# Device appears, but is listed as offline
$ adb devices
$ adb logcat
安装apk文件报waiting for device 时解决办法
原文：http://www.cnblogs.com/AliceAn/p/4503170.html