Official download The MediaTek USB VCOM drivers is published and digitally signed by MediaTek (community mirror). For the safest, most up-to-date version, download it directly from the official source: If you are attempting to flash official firmware, restore a hard-bricked smartphone, or bypass the lock screen security on an Android device powered by a MediaTek (MTK) chipset, you have likely run into major frustration with software tools like SP Flash Tool , MTK Client , or Miracle Box. When you connect the powered-off phone in bootloader or preloader mode, modern operating systems like Windows 10 and Windows 11 often play the USB connection chime, followed immediately by the disconnect sound. The Windows Device Manager refreshes rapidly, displaying a persistent yellow exclamation mark on devices labeled "MTK USB Port" or "MediaTek Preloader USB VCOM" , causing flashing utilities to hang indefinitely at zero percent. This frustrating behavior occurs because the MediaTek preloader boot handshake protocol only stays active for about 2 to 3 seconds before timing out and booting the phone into its standard charging or operating system mode. If your Windows machine fails to negotiate a stable virtual COM port instantly, the flashing tool completely misses the narrow execution window. This comprehensive guide provides the signed MTK USB VCOM Driver pack optimized for modern 64-bit Windows environments, allowing instantaneous port handshakes, stable data transmission, and successful device flashing. Download MTK USB VCOM Driver MediaTek (MTK) USB VCOM & Preloader driver pack. Verified signed driver files for Windows 10 & 11. Understanding MediaTek USB VCOM Drivers: Why They Matter Before diving into installation guides and troubleshooting steps, it is essential to understand what a Virtual COM (VCOM) driver actually does. Unlike Qualcomm devices that utilize Qualcomm HS-USB QDLoader 9008 drivers, MediaTek chipsets handle low-level flashing through custom serial communication protocols channeled over USB connections. When your phone is switched off and plugged into a PC, the raw hardware bootloader looks for an active communication link. The VCOM driver acts as a bridge, translating standard USB data packets into serial interface communications that the SP Flash Tool can read and write. Without these precise kernel-level drivers installed, Windows treats the incoming hardware signal as an unknown device, resulting in failed handshakes, communication timeouts, and corrupted firmware flashing attempts. Technical Specifications & Driver Details The MediaTek boot process uses two distinct COM port modes: the Preloader port (used for standard ROM initialization, custom recoveries, and system upgrades) and the DA USB VCOM port (used once the Download Agent is uploaded into device RAM). The granular driver specifications are detailed in the comparison matrix below. Comprehensive Step-by-Step Installation Instructions Because the target device disconnects so rapidly during normal connection, attempting to install the driver via standard plug-and-play methods usually fails. You must proactively install the driver package *before* plugging in the target mobile device by utilizing the built-in Windows Legacy Hardware Wizard: Extract the archive files: Download the official ZIP pack from the link above and extract its contents to a clear, accessible directory on your main drive (e.g., C:\Drivers\MTK_VCOM ). Make sure you note the exact path. Open Device Manager: Right-click the Windows Start button or press the keyboard shortcut Win + X , then select Device Manager from the power user menu. Open Legacy Hardware Wizard: Click on your Computer Name at the very top of the device list tree. Navigate to the top menu bar, click on Action , and select Add legacy hardware from the drop-down menu. Click Next on the introductory wizard window. Select Manual Choice: Choose the second radio option labeled Install the hardware that I manually select from a list (Advanced) and click Next to proceed. Select Common Hardware Category: Scroll through the hardware type list, select Ports (COM & LPT) , and click the Next button. Browse for INF Configuration: Click the Have Disk... button, then click Browse and navigate to your previously extracted folder directory: C:\Drivers\MTK_VCOM\Driver_Auto_Installer\SmartPhoneDriver\x64\inf . Select the primary configuration file such as cdc-acm.inf or mtk_install.inf , and click Open, then click OK. Select Preloader Model: From the updated list of available hardware models, choose MediaTek Preloader USB VCOM Port and click Next. Follow the remaining prompts and finish the wizard to complete the driver installation. Reboot Your PC: Restart your Windows machine to properly initialize and register the newly added port drivers into the system kernel. Once rebooted, when you connect your powered-off MediaTek phone, it will seamlessly route through this established virtual COM port. Advanced Troubleshooting Connection Loops & Common Errors Even with correct driver installation, various hardware and software factors can interfere with flashing tools. Here are the most common troubleshooting scenarios and how to resolve them quickly: 1. Phone Boots Regularly Instead of Flashing If your device completely ignores the flash tool interface and boots straight into normal charging or system UI, the preloader handshake timing window was missed. To bypass this issue, load your scatter configuration file, select your desired flashing mode, and click the Download button in SP Flash Tool *before* plugging the phone into the computer. Ensure the device is completely powered off, and hold down the Volume Down or Volume Up physical button simultaneously while inserting the USB cable to force the device into Brom mode. 2. Encountering "Device Descriptor Request Failed" (Error Code 43)

If Windows pops up a notification stating that the USB device descriptor request failed or displays a Code 43 error in Device Manager, this typically indicates a low-level physical layer communication failure. Try swapping out your USB cable for a certified, high-quality OEM data cable. Furthermore, strictly avoid using high-speed USB 3.0 (blue) ports if possible; standard USB 2.0 (black) ports handle legacy MediaTek handshake timing parameters and voltage thresholds much more reliably. 3. Driver Signature Enforcement Warnings Although the recommended driver packs are digitally signed, tightly locked corporate or customized Windows installations may still flag unsigned driver blocks. If you receive signature errors, you can temporarily disable Driver Signature Enforcement through Advanced Startup options, install the drivers manually, and re-enable security afterward. Frequently Asked Questions Q1: What is the exact difference between Preloader mode and Brom mode? Preloader mode is software-controlled and times out quickly if no valid host response is detected. Brom (BootROM) mode is permanently hardcoded into the internal MediaTek silicon and can be accessed securely by shorting designated hardware test points or holding specific key combinations during connection. Q2: Can I use this driver to bypass Google Factory Reset Protection (FRP)? Yes. Many modern third-party tools utilized for bypassing FRP security barriers—such as specialized MTK Client scripts or commercial unlock utilities—rely entirely on this underlying VCOM driver to establish a secure serial communication channel capable of clearing protected partitions. Q3: Does this driver package support modern MediaTek Dimensity processors? Yes. The CDC ACM USB serial communication framework and underlying protocol standards remain completely consistent across legacy MTK MT65xx/MT67xx chips and modern high-performance 5G MediaTek Dimensity System-on-Chips. Q4: How do I uninstall older or conflicting VCOM drivers? Open Device Manager, click on View in the top menu, and select Show hidden devices . Look under the Ports (COM & LPT) dropdown tree, right-click any legacy MediaTek, CDC, or unrecognized serial entries, select Uninstall device , and make sure to check the box that deletes the driver software package from your system. Q5: Is this driver package digitally signed for Windows 11? Yes. The recommended driver package contains verified WHQL-signed configuration files, which means you do not need to alter core operating system security parameters or disable Driver Signature Enforcement to install them successfully on Windows 10 or Windows 11. Get The Ultimate Cisco IOS Cheat Sheet Join 10,000+ network engineers. Enter your email to instantly download our high-res PDF cheat sheet with the 50 most essential networking commands. No spam. Unsubscribe at any time. Join 10,000+ IT Pros Get our weekly roundup of enterprise firmware releases, verified driver links, and expert hardware reviews directly in your inbox. You May Also Like Xiaomi Mi Flash Tool v20200314 Download & Qualcomm USB Drivers Pack Flashing stock ROMs or recovering a bricked Xiaomi, Redmi, or POCO device requires the official flas... Segger J-Link Software & Drivers Download for Windows 11 Embedded systems developers working with ARM Cortex, RISC-V, or Renesas microcontrollers rely on SEG... USBDM Programmer Software & Driver Download (NXP Freescale HCS08 & HCS12) Programming Freescale (now NXP) microcontrollers like the HCS08, HCS12, ColdFire, or Kinetis series ... Sign in to join the conversation or say thanks.