If your device has secure boot, you may need a specific DA file like DA_SWSEC.bin Force a Driver Handshake: Disconnect the phone and close the tool. Volume Down (or both) while reconnecting the USB cable. Check Battery Status: Some MTK devices require the battery to be removed and reinserted before connecting. Ensure the battery has at least 30% charge Update/Change Tool Version: Newer MTK chips often require . Older chips (MT657x) may need 💻 System & Connection Troubleshooting Run as Administrator: Right-click flash_tool.exe and select Run as Administrator Fix USB Drivers: Uninstall existing VCOM/MTK drivers using a tool like Reinstall the MediaTek Preloader USB VCOM Use a Direct Port: Avoid USB hubs. Use a USB 2.0 port
Getting stuck at "Download DA 100%" in SP Flash Tool is a common hurdle for MediaTek users
: Offers robust script-handling for older MTK architectures. sp flash tool stuck at download da 100
Use the original USB cable that came with the phone. Avoid extension cables. 2. Reinstall/Update MediaTek VCOM Drivers
Open Device Manager, uninstall any existing "MediaTek PreLoader USB VCOM" drivers, and reinstall a clean, signed driver package. If your device has secure boot, you may
The "Download DA 100%" error is rarely a death sentence for your device. In 90% of cases, it’s a driver, USB port, or cable issue. Be patient, methodically try each fix, and you’ll likely see that progress bar turn green.
For modern chipsets, try installing to handle the connection more stably. Adjust Connection Settings : Ensure the battery has at least 30% charge
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If you see "MTK USB Port" or "Preloader USB VCOM" appear and then disappear with a yellow triangle, your drivers are outdated or unsigned.
(connected directly to the motherboard) rather than front-panel ports. Bypass USB Hubs : Connect your device directly to the PC. Run as Administrator : Right-click flash_tool.exe and select Run as Administrator to ensure the tool has full system permissions. 2. Fix Your Drivers A faulty or outdated MediaTek Preloader VCOM driver is a frequent culprit. Reinstall VCOM Drivers : Uninstall any current MTK drivers using a tool like and manually reinstall the latest VCOM drivers. Check Device Manager