After changing these, save the config, restart the tool, and try again.
Configure SP Flash Tool:
Connect device properly:
If it gets stuck on “Download DA 100”:
Advanced steps:
Before giving up, verify each:
If you’ve completed all 12 solutions and the yellow bar still reads "Download DA 100%" for more than 2 minutes, your phone’s eMMC is likely physically dead. In that case, only a chip replacement will bring it back to life.
Did this guide help you fix the "SP Flash Tool stuck on Download DA 100%" error? Share your experience in the comments below, including your phone model, chipset, and which solution worked. Your insight can help thousands of other users facing the same frustrating freeze.
To fix SP Flash Tool when it is stuck at Download DA 100%, you usually need to address either driver conflicts, incorrect Download Agent (DA) files, or hardware connection issues. This specific hang point typically indicates that the tool has sent the Download Agent to the phone, but the phone's processor (BROM) has failed to initialize the handshake to start the actual flashing process. Immediate Solutions
Forced Connection Mode: While connecting the phone, try holding down the Volume Up or Volume Down button (or both) to force the device into a specific boot mode that allows the handshake to complete.
Update/Reinstall Drivers: Use a tool like USBDeview to uninstall any existing MediaTek or VCOM drivers, then perform a clean manual installation.
Change the Download Agent: Manually select a different DA file (typically MTK_AllInOne_DA.bin) in the tool’s "Download-Agent" field. Some secure boot devices require a specific custom DA file provided by the manufacturer. Deep Technical Analysis 1. Driver and Software Configuration
Often, Windows incorrectly identifies the device or fails to switch from the "Preloader" driver to the "VCOM" driver required for data transfer.
Administrator Privileges: Always run flash_tool.exe as an administrator to ensure it has permission to open COM ports.
USB Port Selection: Avoid using USB 3.0 (blue) ports or external hubs. Use a direct USB 2.0 port on the PC's motherboard (the back ports on a desktop) for a more stable connection.
Tool Version: If you are using an older version, download the latest SP Flash Tool version. Conversely, older MTK chipsets (like MT65xx) sometimes perform better on version 3.x. 2. Hardware and Connection Audit Stuck at Download DA 100% - Hovatek
When SP Flash Tool gets stuck at Download DA 100% (often represented by a solid red bar), it means the tool has successfully loaded the Download Agent (DA) into the device's internal SRAM but is failing to initiate communication with the phone's DRAM or external memory. Common Fixes for the 100% Hang
Toggle Boot Keys: While the tool is stuck at 100%, try holding different button combinations on your device (e.g., Volume Up, Volume Down, or both) while it's connected.
Driver Reset: Conflicting drivers can stall the process. Use a tool like USBDeview to uninstall old VCOM and Preloader drivers, then reinstall the latest MediaTek USB VCOM drivers.
Try Different Tool Versions: Older MediaTek chips (like MT6575/MT6577) often require specific older versions of SP Flash Tool, while newer chips need the latest v5 or v6 releases.
Run as Administrator: Right-click flash_tool.exe and select Run as Administrator. You might also need to set the Compatibility Mode to Windows XP Service Pack 3 for older versions. Check Hardware Connections:
Switch to a different USB port (preferably one directly on the motherboard if using a desktop).
Ensure the battery is inside and sufficiently charged, or try the process without the battery if your device supports it.
File Selection: Ensure you are using the correct DA_SWSEC.bin or MTK_AllInOne_DA.bin file provided with the firmware or the tool. Common Error Meanings
List of sp flash tool error codes, meanings & how to fix (solution)
This is a very common issue when flashing MediaTek (MTK) devices. It usually means the SP Flash Tool is waiting for a response from the phone’s preloader, but the connection is being blocked, interrupted, or misunderstood by the computer.
Here is a step-by-step troubleshooting guide to fix "Stuck on Download DA 100%".
Before diving into complex fixes, run these quick checks:
If the error persists, move to the specific solutions below. sp flash tool stuck on download da 100
The default timeout for the DA handshake is too short for some older or heavily bricked phones.
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.
Sometimes the tool settings conflict with the phone's security state.
1. Disable "DA Checksum" (Most Effective Setting Fix)
2. Change Download Agent Version
3. Run as Administrator
Smart Phone Flash Tool (SP Flash Tool) becomes stuck at "Download DA 100%," it signifies a critical communication breakdown between the computer and the MediaTek (MTK) device. While the progress bar indicates that the Download Agent (DA) has been successfully sent to the device's internal memory, the software is unable to proceed to the next phase—usually the flashing of actual firmware partitions like the preloader or system. Resolving this issue requires a systematic approach to identifying whether the bottleneck is hardware, driver, or software-related. Root Causes of the "DA 100%" Stall
The primary reason for this stall is that the flash tool is waiting for a response from the device that never arrives. This can be caused by: Driver Conflicts : Improperly installed or outdated VCOM drivers
prevent the tool from maintaining a stable connection once the initial handshake (the DA stage) is complete. Secure Boot Requirements
: Newer devices often require a specific "Secure Boot" Download Agent or an authentication file (auth file) to authorize the flashing process. Physical Connectivity
: A faulty USB cable, a damaged port, or insufficient power from a USB hub can cause the communication to drop immediately after the DA is sent. Hardware Mismatch
: A mismatch between the firmware's scatter file and the physical hardware of the phone can cause the tool to hang as it fails to verify the target device's internal layout. Strategic Solutions
To overcome this error, users should apply the following troubleshooting steps in order of complexity: Check Hardware Connections
Switch to a high-quality original USB cable and connect directly to a rear USB port on the PC motherboard rather than a front-panel port or hub.
Ensure the device is powered off completely. If the battery is removable, take it out and reinsert it before reconnecting. Verify and Update Drivers Reinstall the MediaTek USB VCOM drivers
and check the Windows Device Manager to ensure the device is recognized as "MediaTek Preloader" or "MTK USB Port" without any warning symbols. Software Adjustments Version Compatibility : Try using a different version of the SP Flash Tool
. Sometimes an older version (like v3.x) is required for legacy devices, while newer chips need v5.x or v6.x. DA File Selection : Manually select a compatible Download Agent (often MTK_AllInOne_DA.bin
) from the tool’s folder. If the device has a secured bootloader, a custom DA file specific to that model may be necessary. Device Key Combinations
Some MTK devices require specific keys to be held during connection to trigger the correct flashing mode. Common combinations include holding Volume Down , or both while plugging in the USB cable.
By methodically addressing these potential points of failure, users can typically bypass the "Download DA 100%" stall and successfully restore or update their device firmware. technical guide
for a specific phone model, or should we look for a download link for a specific version of the SP Flash Tool? Working with SP Flash Tool - GeeksforGeeks
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)
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) Open Options → Download :
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
When the SP Flash Tool gets stuck on "Download DA 100%" (indicated by a solid red bar), it usually means
the tool has successfully loaded the Download Agent to the phone's internal memory, but the device and computer have failed to establish further communication to begin the actual flashing process Quick Fixes to Try First Use the Right Key Combination
: While the red bar is at 100%, try holding different button combinations on your phone while it's connected. Common combinations include Volume Down both Volume buttons
simultaneously. This often triggers the handshake required to move past the DA stage. Uncheck "Preloader"
: In the main SP Flash Tool interface, locate the list of partitions and uncheck the
option before clicking Download. This is a common workaround for communication hang-ups. Switch USB Ports/Cables
: Use a high-quality USB cable and try a different port on your PC, preferably a USB 2.0 port
if available, as USB 3.0 (blue ports) can sometimes cause timing issues. Advanced Troubleshooting
If the quick fixes don't work, one of the following root causes is likely the culprit: Driver Issues (VCOM)
: Your computer may not have the Mediatek VCOM drivers installed or configured correctly. Device Manager
on your PC and watch the "Ports (COM & LPT)" or "Other Devices" section while connecting the phone.
If it appears as "Unknown Device" or disappears quickly, right-click and manually update the driver to the MediaTek USB VCOM Incorrect Download Agent (DA) : Some newer or secure-boot devices require a specific file rather than the default MTK_AllInOne_DA.bin
next to "Download-Agent" in the tool and select a specialized DA file like DA_SWSEC.bin or a specific one provided with your phone’s firmware. Battery Connection With Battery
: Ensure the phone is completely switched off with the battery inside before connecting. Without Battery
: For some older models, try removing the battery (if possible) and connecting the phone without it. Tool Version : Ensure you are using the latest version of SP Flash Tool
. If the latest version fails, try an older stable version (e.g., v5.19xx), as some chipsets work better with older software. Critical: Under "Connection" , set to "USB High
What is the specific model of the device you are trying to flash? Knowing this can help identify if a specialized Download Agent is required. AI responses may include mistakes. Learn more SP Flash Tool Error Solutions Guide | PDF - Scribd
The "Download DA 100%" freeze in SP Flash Tool typically signals a communication breakdown between your PC and the MediaTek (MTK) device just as the initial handshake completes. Why Your Flash Is Stuck
Getting stuck at 100% on the red "Download DA" bar often means the tool has successfully sent the Download Agent (DA)
to the device's internal RAM, but it cannot transition to the actual flashing stage. This is usually due to: Incorrect Download Agent : Using the default MTK_AllInOne_DA.bin for a device that requires a secure or custom DA. Driver Mismatch
: The PC recognizes the "MediaTek USB VCOM" port but fails to hand over to the "MediaTek Preloader" port. Hardware Connection
: A faulty USB cable or port that can handle small data bursts (like the DA) but fails during heavy data transfer. Step-by-Step Fixes Switch the Download Agent (DA) SP Flash Tool
and manually select a different DA file. For many newer secure-boot devices (like Infinix, Tecno, or Oppo), you must use a custom DA (often named DA_SWSEC.bin or similar) provided with your specific firmware. Toggle "Check LIB DA Match"
If using a custom DA, you may need to disable a security check. Navigate to Options > Option > Download and uncheck "Check LIB DA match" to allow the tool to proceed with non-default agents. Clean Your VCOM Drivers Conflicting drivers are a major culprit. Use a tool like
to uninstall all old "MediaTek" or "Preloader" drivers, restart your PC, and then manually reinstall the MTK VCOM Drivers Hardware Connection Check
: Avoid USB 3.0 (blue) ports; older MTK devices often prefer Battery Status
: Ensure the phone is completely off. Some devices require the battery to be during the flash, while others require it to be or for you to hold Volume Down while connecting. Try an Older Version
If you are on the latest v5 or v6, try rolling back to an older stable version like
for legacy devices, as newer versions sometimes drop support for older chips. Best Practices to Avoid Bricking
Fix SP Flash Tool COM Port Open Error: A Simple Guide - Crawler
SP Flash Tool getting stuck at "Download DA 100%" is a common communication error between your PC and the MediaTek (MTK) device. This usually happens when the tool has sent the Download Agent but cannot initiate the next stage of the flashing process. 🛠️ Primary Solutions 🔌 Fix Connection & Drivers
Use a different USB port: Avoid USB 3.0 (blue) ports; use USB 2.0 instead.
Try a different cable: Use the original high-quality data cable.
Reinstall VCOM drivers: Ensure MTK USB VCOM drivers are correctly installed in Device Manager.
Remove battery: If the device has a removable battery, take it out, wait 10 seconds, and reinsert it before connecting. ⚙️ Adjust SP Flash Tool Settings
Run as Administrator: Right-click the flash_tool.exe and select Run as Administrator. Change the Download Agent: Go to the Download tab. Click the Choose button next to "Download Agent".
Select MTK_AllInOne_DA.bin (found in the SP Flash Tool folder). Check Connection Settings: Go to Options > Option... > Connection. Set "USB Speed" to Full Speed. Set "Battery" to With Battery (or "Auto Detect"). 💻 System & Security
Disable Antivirus: Temporarily turn off Windows Defender or third-party antivirus.
Disable Driver Signature Enforcement: Windows 10/11 users may need to disable this to allow VCOM drivers to function properly. ⚠️ Common Hardware Triggers
Faulty USB Port: The physical port on the phone (charging port) might be loose or damaged.
Incompatible Firmware: Ensure the Scatter file matches your exact phone model and CPU (e.g., MT6750 vs MT6755).
Locked Bootloader: Some modern MTK devices require a "Bypass Tool" (libusb/auth bypass) to allow SP Flash Tool to communicate beyond the DA stage.
To help you get past this specific percentage, could you tell me: What is the brand and model of the phone? What version of Windows are you using? Are you trying to format, upgrade, or unbrick the device?
Knowing these details will allow me to provide the specific Download Agent (.bin) or Bypass steps for your chipset.