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[Tutorial] How to manually update Mediatek (MTK) or Spreadtrum (SPD) USB drivers on a Windows PC

(This post was last modified: 07-08-2017, 04:40 PM by hovatek. )

Sometimes, you could encounter connection-disconnection sounds during flashing attempts, causing the flashing process not to even begin (the phone could start charging, show a charging sign or boot up instead of flashing). This scenario isn't limited to flashing alone. You could encounter something similar with ADB / Fastboot drivers. In such a case, updating the device's USB drivers could help with detection issues.


  • For Windows 8 and above, you need to disable drivers signature verification for this to work smoothly, see https://forum.hovatek.com/thread-752.html for the procedure
  • Download necessary drivers for your device

Steps to manually update Mediatek or Spreadtrum drivers

  1. In Windows, go to Control Panel and launch Device Manager; take a mental note of what is listed

    [Image: How-to-manually-update-Mediatek-or-Sprea...s-PC-1.jpg]

  2. Switch off (with battery inside) then connect the affected (not properly detected) device and take note of any new item on the list; this is what the device is being detected as. In this example, its under Ports (COM & LPT)

    Mediatek Preloader USB VCOM (Android) (COM3)

    [Image: How-to-manually-update-Mediatek-or-Sprea...s-PC-2.jpg]

  3. You would notice that the new entry [ (Mediatek Preloader USB VCOM (Android) (COM3) in this example ] disappears after a few seconds, not to worry

    [Image: How-to-manually-update-Mediatek-or-Sprea...s-PC-1.jpg]

  4. Click View at the top

    [Image: How-to-manually-update-Mediatek-or-Sprea...s-PC-3.jpg]

  5. Under View, click Show hidden devices

    [Image: How-to-manually-update-Mediatek-or-Sprea...s-PC-4.jpg]

  6. You should now see all devices, including yours that appeared and disappeared [ (Mediatek Preloader USB VCOM (Android) (COM3) in this example ]

    [Image: How-to-manually-update-Mediatek-or-Sprea...s-PC-5.jpg]

  7. Right-click the driver and select Update Driver Software...

    [Image: How-to-manually-update-Mediatek-or-Sprea...s-PC-6.jpg]

  8. From this point,simply follow the manual drivers installation guide for your type of phone below:
  9. For Mediatek (MTK), see https://forum.hovatek.com/thread-440.html
  10. For Spreadtrum (SPD), see https://forum.hovatek.com/thread-827.html
  11. For other drivers or a generic guide, see https://forum.hovatek.com/thread-16648.html

Important notes

  • You sometimes have to hold the Volume down / decrease button on the phone when connecting (via USB cord) to PC in order to trigger driver installation
  • If the device constantly connects and disconnects then its either a power or USB cord / port related issue
  • If the device is still not detected then connect it to PC while off > Launch Device Manager > Show all hidden devices > Uninstall all Mediatek drivers > Disconnect the phone then reconnect when ready to flash
Need further assistance? Speak with a Hovatek Representative:
Working Hours: Mondays - Saturdays ; 09:00 - 18:00 (GMT +1:00)

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