Three large USB connection modes for Android devices
- Mtp:media Transfer Protocol-Media Transfer Protocol , the most common connection mode under Windows, is a Microsoft protocol that can manage portable storage devices. MTP was originally loaded in the Windows Media Device Manager SDK. This mode was supported by Google after Android 4.0, before which the Android device used the file transfer mode and also weigh the capacity storage mode. In MTP mode, Android devices are recognized as "portable devices" in Device Manager, are recognized as "portable devices" in "My Computer", while devices in mass storage mode appear as "removable disks", although the SD card can be accessed simultaneously by the PC and the phone in MTP mode, the operating experience is more Good.
- adb:android Debug Bridge-Android Debug Bridges , which can be used with PC terminal operations, manage apps and systems on Android devices, common CMD commands, various brush software, and management software like pea pods. This mode needs to be turned on on the Android device, and "Android Composite ADB Interface" will be identified in Device Manager after the PC is connected. Android 4.2 After a "USB Debugging Authorization" protection measures, if not confirmed authorization, although the Device Manager will recognize the success, but can not do anything (general hint "adb device not Found", pea pod hint "adb offline").
- Fastboot/bootloader: Engineering mode , the underlying mode of Android device, run before kernel boot, common brush kernel, brush recovery, save bricks and other operations. This mode is based on the specific device model, connected to the computer "Device Manager" identified "Android Bootloader Interface", if the mode is not accessible, means that the device hardware failure.
Installing drivers
Environment:
- Pc:windows 7 64bits
- Android Device:nexus 7 2013 does not get root privileges.
Symptoms: The connection to the PC shows that the driver installation failed.
Workaround:
- Click "Settings"-"Storage"-"USB Computer Connection" (Click the "More" button in the upper right corner to eject), tick "media device (MTP)".
- Click "Settings"-"Developer Options" and check "USB debugging".
- Download Media Transfer Protocol Porting Kit to restart Windows after installation.
- Reconnect the Nexus 7 and the driver is installed successfully.
