How to Find and Install a Driver for an SDM660 MTP Device

Some Android phones built on the Qualcomm Snapdragon 660 platform identify themselves to a computer as SDM660-MTP. The name usually comes from the chipset reference name in the phone's software rather than from the retail model. When Windows has no driver for that entry, the phone appears in Device Manager with a warning icon and its storage does not open in File Explorer. In most cases you do not need to download anything: Windows already includes a driver for MTP (Media Transfer Protocol) devices. You only need to assign it.

Before you start

The whole process runs on your own computer and phone. It does not need an online service or an account. Driver packages offered on download sites under the SDM660 MTP name are unnecessary for ordinary file transfer, and installing unsigned drivers from unknown sources is a security risk.

• A Windows 10 or Windows 11 PC with an account that can change device drivers.
• A USB cable that carries data, not only charge. Some cheap or bundled cables are charge-only.
• The phone unlocked with its screen on while you connect it.
• If you use an N edition of Windows, the Media Feature Pack. MTP support depends on it, so without it the MTP driver may be missing from the list.
• A clear idea of what you need: file transfer (photos, videos, recordings) uses the MTP driver, while ADB debugging and firmware flashing use different drivers that this guide does not cover.

Step-by-step instructions

• 1. Connect the phone directly to a USB port on the computer, not through a hub, and unlock it.
• 2. On the phone, open the USB notification and choose file transfer. Depending on the manufacturer and Android version, it may be labelled File transfer, Transfer files or MTP. The default is often charging only.
• 3. On the PC, right-click the Start button and open Device Manager.
• 4. Find the SDM660-MTP entry. It usually appears under Portable Devices or Other devices, often with a yellow warning sign.
• 5. Right-click the entry and choose Update driver, then Browse my computer for drivers.
• 6. Choose Let me pick from a list of available drivers on my computer.
• 7. If Windows asks for a device type, select Portable Devices.
• 8. Select MTP USB Device and confirm. If it is not listed, clear the Show compatible hardware checkbox, pick the standard MTP device entry from the manufacturer list, then select MTP USB Device.
• 9. Accept the compatibility warning if one appears, wait for the installation to finish, then unplug and reconnect the phone.

The change can be undone. If the result is wrong, open the device properties in Device Manager and use Roll Back Driver on the Driver tab if it is available. Otherwise, choose Uninstall device and reconnect the phone so that Windows detects it again.

On macOS, Android phones are not opened through MTP by default, so a separate MTP client app is needed. On most Linux desktops, the file manager handles MTP through libmtp-based components and no driver is installed manually.

Check the output

After reconnecting, the phone should appear in File Explorer under This PC. It may keep the SDM660-MTP name, which only changes how it is labelled. Open the internal storage. Camera photos and videos are usually stored in DCIM, and audio recordings in a folder created by the recording app. Copy one photo and one video to the computer and open both from the local copy to make sure the transfer worked.

• MTP copies whole files. Editing a file directly on the phone from the PC can be unreliable, so copy it to the computer first.
• Large folders such as DCIM can take a while to list, and new files taken while the phone is connected may not appear until you reconnect.
• File dates shown on the PC may differ from the original capture date depending on how the copy is made, so check timestamps if you sort media by date.
• Photos saved as HEIC and videos encoded in HEVC may need additional codecs before Windows can preview them, even though the files themselves copied correctly.

Common problems and next steps

• The device appears but its storage is empty: unlock the phone and select file transfer again. Many phones hide storage while locked or in charging mode.
• Nothing appears in Device Manager at all: try another cable and another USB port. A charge-only cable is a frequent cause.
• MTP USB Device is missing from the driver list: clear Show compatible hardware as described above. On N editions of Windows, install the Media Feature Pack first.
• The driver installs but the device shows an error code: uninstall the device in Device Manager, restart the PC and reconnect the phone.
• The entry reads Android or ADB Interface instead of SDM660-MTP: USB debugging is enabled. File transfer still uses MTP, and ADB needs its own driver.
• The device appears as Qualcomm HS-USB QDLoader 9008: the phone is in emergency download mode, which is used for firmware recovery, not file transfer. Restart the phone normally before trying again.
• Transfers stall or disconnect: avoid hubs and front-panel ports, keep the phone screen awake and copy large video folders in smaller batches.

If the phone still is not recognised after these steps, check whether its manufacturer provides an official USB driver or desktop companion app for that model and use that instead of a generic SDM660 package.