Sp Flash Tool - Stuck On Download Da 100

If none of the above works, the preloader region of the eMMC is likely corrupt beyond BROM's ability to bypass. In this state, the phone won't even accept the DA.

You will need:

Once connected, write a known-good preloader binary (extracted from your stock ROM) directly to the eMMC at offset 0x0. After rewriting the preloader, the phone will re-enter BROM mode normally, and SP Flash Tool will sail past 100% DA.

This is an advanced repair method for technicians only.

This forces the CPU into BROM mode, where the DA is always accepted. Many "DA 100%" errors disappear when using this method.

Meta Description: Is your SP Flash Tool frozen at "Download DA 100%"? This 3000+ word guide covers 12 proven fixes, from driver issues to eMMC corruption, to unbrick your MediaTek device.

If the phone is stuck in a bootloop or has a corrupted bootloader, it may not enter BROM mode correctly. Forcing BROM mode bypasses the preloader entirely.

The "Download DA 100%" (Download Agent) stage is a critical handshake between SP Flash Tool and your MediaTek-powered device. When it gets stuck, the tool has successfully sent the DA to the phone’s RAM, but the phone isn’t responding or executing it properly.

This is not a hardware failure in most cases. It’s usually a driver, USB connection, or timing issue.

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If your SP Flash Tool is stuck on "Download DA 100%", you are not alone. This is one of the most common errors when flashing MediaTek (MTK) devices.

It means the computer has successfully sent the Download Agent (DA) to the phone, but the device is failing to communicate back to start the actual flashing process.

Below is a complete, step-by-step guide to troubleshoot and fix this issue. ⚡ Quick Fixes to Try First

Before diving into complex settings, try these basic hardware checks:

Change the USB Cable: Use a high-quality data cable, preferably the original one.

Change the USB Port: Avoid USB 3.0 (blue ports). Plug into a USB 2.0 port directly on the motherboard (rear of desktop PCs).

Disconnect and Reconnect: Unplug the phone, remove the battery (if removable) for 10 seconds, put it back, and try again.

Check Button Combinations: Some MTK phones require holding Volume Down, Volume Up, or Both while plugging in the USB cable to trigger the correct download mode. 🛠️ Method 1: Install Correct MediaTek VCOM Drivers

A corrupted or missing VCOM driver is the #1 cause of the "Download DA 100%" hang. The tool recognizes the device initially but loses the connection when switching modes. Download the latest MTK VCOM USB Drivers.

On Windows 10 or 11, you must Disable Driver Signature Enforcement before installing, or the drivers will not work. Open Device Manager on your PC.

Connect your turned-off phone. Look for MediaTek PreLoader USB VCOM or MTK USB Port.

If you see a yellow triangle, right-click and update the driver manually. 📂 Method 2: Use the Correct DA and Scatter Files

Using a generic Download Agent (DA) on a secure boot device will cause the tool to freeze at 100%.

Match the DA file: In SP Flash Tool, click the Choose button next to "Download-Agent".

Try selecting the default MTK_AllInOne_DA.bin found inside the SP Flash Tool folder. sp flash tool stuck on download da 100

If your device has a secured bootloader (like many Xiaomi, Oppo, or Realme MTK phones), you must use a specific custom DA file matching your phone model.

Ensure your Scatter file matches your exact phone model and stock ROM version. 🔓 Method 3: Bypass MTK Auth (For Modern Devices)

Newer MediaTek devices have a secure boot system that requires server authentication. SP Flash Tool will hang at 100% DA because it cannot bypass this security.

Download an MTK Auth Bypass Tool (such as MTK Meta Utility or MCT Bypass).

Install the required LibUSB 32 filters as prompted by those tools. Open the bypass tool and click Disable Auth.

Connect your phone while holding the boot keys (usually Volume Up + Volume Down).

Once the tool says "Protection Disabled", immediately open SP Flash Tool and click Download. ⚙️ Method 4: Change Connection Settings

Sometimes the tool times out because the connection speed or port is not configured correctly.

In SP Flash Tool, go to Options > Option (or press Ctrl + O). Navigate to the Connection tab on the left. Change the USB Speed from "High Speed" to Full Speed.

Set the Battery option to "Without Battery" if your device has a non-removable battery (or try "Auto Detect"). 🛑 Method 5: Run as Administrator & Use Older Versions

Compatibility issues with newer Windows versions can cause the software to hang. Right-click flash_tool.exe and select Run as Administrator.

If you are using the latest version of SP Flash Tool (v6.x), try downgrading to a stable v5.x version (like v5.1924), as many older scatter files only work correctly on version 5.

To help you get the exact files or steps needed to unbrick your device, could you share: What is the exact brand and model of your phone?

What operation are you trying to do? (e.g., flashing full stock ROM, rooting, or unlocking bootloader) Which Windows version is your computer running?

SP Flash Tool hanging at "Download DA 100%" indicates a failure to establish a handshake after successfully loading the Download Agent, usually caused by driver conflicts, hardware issues, or Secure Boot restrictions. Key solutions include reinstalling MediaTek VCOM drivers, using a device-specific custom DA file, switching to USB 2.0 ports, and verifying the phone is powered off during connection. For more detailed solutions, visit Hovatek.

List of sp flash tool error codes, meanings & how to fix (solution) If none of the above works, the preloader

Getting stuck at "Download DA 100%" in SP Flash Tool is a frequent frustration for MediaTek device users.

This state typically indicates the tool has successfully loaded the Download Agent (DA)

into the device's RAM, but is failing to initiate the actual flashing process User Experience: Stuck at Download DA 100%

This issue often presents as a red or yellow progress bar that completes but never transitions to the flashing stage (the purple or yellow "Download" bar). Users commonly experience this when there is a communication breakdown between the PC and the phone's bootloader. Common Causes & Troubleshooting Based on technical community consensus from platforms like XDA-Developers , here is how to resolve this specific hang: Secure Boot Requirements

: Many modern MediaTek devices require a custom DA file instead of the default MTK_AllInOne_DA.bin

. If your device has secure boot, you must manually select the specific DA file provided with your firmware. Driver Instability MediaTek VCOM drivers

may be improperly installed or conflicting with other USB drivers. to clear old drivers and reinstall the latest VCOM drivers. Connection Method : The tool waits for a specific handshake.

: Try different button combinations while connecting the USB cable: Volume Down , or both. Alternative

: Ensure the phone is completely powered off. If the battery is removable, try taking it out and reinserting it before connecting. Hardware Conflicts

: Sometimes the issue is as simple as a faulty cable or port. : Switch to a USB 2.0 port

(usually black) instead of USB 3.0 (blue), as the latter often causes timing issues with SP Flash Tool. Version Mismatch

: Using an outdated version of the tool can lead to generic hangs or Error 2004 : Download the latest version of SP Flash Tool and run it as an Administrator Windows XP Compatibility Mode Summary Verdict

The "Download DA 100%" hang is rarely a sign of a "bricked" device, but rather a configuration error. Success usually comes down to finding the correct DA file for your specific model and ensuring your VCOM drivers

are active in Device Manager the moment the phone is plugged in. or a newer SP Flash Tool version for your device model? SP Flash Tool Error Solutions Guide | PDF - Scribd

SP Flash Tool Stuck on "Download DA 100%" - A Troubleshooting Guide

If your SP Flash Tool is stuck on "Download DA 100%" while trying to flash your device, don't worry, this guide will help you troubleshoot and possibly fix the issue. This forces the CPU into BROM mode, where