1. The "Device Manager" Check (Crucial) This is the most common cause. You need to see if the computer recognizes the phone at all.
2. Try a Different USB Port
3. Change the USB Cable
Conclusion
The SP Flash Tool stuck on "Download DA 100" issue can be frustrating, but it's usually solvable with the right approach. By systematically checking each potential cause and applying the suggested solutions, you should be able to resolve the issue and successfully flash your device's firmware. Remember to always use compatible firmware, keep your drivers updated, and ensure a stable connection during the flashing process. If you continue to experience issues, consider seeking help from online forums or professional technicians who specialize in Android device repairs.
FAQs
Q: What does "Download DA 100" mean in the SP Flash Tool? A: "Download DA 100" is a stage in the SP Flash Tool process where it attempts to connect to the device and prepare it for firmware flashing. Getting stuck here usually indicates a communication issue between the tool and the device.
Q: Can a faulty battery cause the SP Flash Tool to get stuck? A: Yes, a low battery or a faulty battery can interrupt the flashing process. Ensure your device is sufficiently charged before attempting to flash.
Q: How do I know if my firmware is compatible with my device? A: Check your device's model number and compare it with the firmware details. Ensure the firmware is specifically designed for your device model and version.
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.
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?
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
The SP Flash Tool getting stuck at "Download DA 100%" (often shown as a red bar) usually means the tool has sent the initial boot instructions but cannot establish a stable data connection to start the actual flashing process. Common Fixes for the "Download DA 100%" Hang sp flash tool stuck on download da 100
If the progress bar fills to 100% and then hangs without moving to the next stage (yellow bar), try these troubleshooting steps:
Try Different Key Combinations: When connecting the USB cable, try holding different buttons. Common combinations include Volume Up, Volume Down, or both simultaneously.
Switch USB Ports and Cables: A common culprit is a faulty cable or a port that doesn't provide enough power. Use a high-quality data cable and try the USB ports on the back of your PC (if using a desktop).
Update or Reinstall VCOM Drivers: Ensure you have the correct MediaTek (MTK) VCOM drivers installed. If they are corrupted, uninstall them using a tool like USBDeview and reinstall the latest version.
Run as Administrator: Right-click flash_tool.exe, go to Properties > Compatibility, set it to Windows XP (Service Pack 3), and check Run this program as an administrator.
Use the Latest Version: Sometimes the "Download DA 100%" error is caused by a version of the tool that doesn't support your specific chipset. Download the latest version of SP Flash Tool or one specifically recommended for your device.
Check the Download Agent (DA): Ensure you are using the correct MTK_AllInOne_DA.bin file or a specific DA file provided with your device's firmware. Quick Safety Tip
Always untick the Preloader box unless you are absolutely sure you need to flash it, as flashing an incorrect preloader can permanently "brick" (disable) your device.
Getting stuck at "Download DA 100%" (red bar) in SP Flash Tool typically indicates a communication failure between your PC and the Mediatek (MTK) device's Boot ROM. While the Download Agent (DA) has reached the device, the tool is unable to proceed to the next stage, often due to driver conflicts, power issues, or secure boot restrictions. Common Causes for the 100% Hang
Driver Instability: The VCOM drivers might be incorrectly installed or not properly communicating with the device in its current state.
Secure Boot Protection: Many modern MTK devices require a specific Secure Boot DA or an authentication file (.auth) to proceed past the initial handshake.
Power/Connection Issues: A weak battery, a faulty USB cable, or an unstable USB port can cause the process to freeze just after the DA download. Step-by-Step Solutions 1. Perform a Hardware Power Cycle
Battery Pull: If your device has a removable battery, take it out for 30 seconds and reinsert it. Ensure it is charged to at least 50%.
Device State: Ensure the phone is completely switched off before connecting it to the PC. 2. Resolve Driver and Connection Conflicts
Try Different Ports: Switch from a USB 3.0 (blue) port to a USB 2.0 port, as SP Flash Tool often has compatibility issues with newer high-speed ports.
Replace the Cable: Use the original USB cable or a high-quality data cable to ensure a stable connection.
Update VCOM Drivers: Open Device Manager, connect the phone, and check if it’s detected as "Mediatek USB VCOM". If it shows as "Unknown," manually update the driver using the Mediatek VCOM Driver Installer. 3. Adjust SP Flash Tool Settings
Run as Administrator: Right-click flash_tool.exe and select Run as Administrator.
Compatibility Mode: Set the tool to run in Windows XP Service Pack 3 compatibility mode via the file properties.
Change Download Agent: In the "Download Agent" field, try selecting MTK_AllInOne_DA.bin from the SP Flash Tool folder. If your device has secure boot, you may need a custom DA file specifically for your phone model.
Uncheck Preloader: Some users find success by unchecking the Preloader partition in the list before clicking "Download". 4. Bypass MTK Authentication (For Newer Devices)
If your device uses modern security, the flash will always hang at 100% unless the authentication is bypassed.
Use a dedicated MTK Auth Bypass Tool to disable the secure boot protection before starting the flash in SP Flash Tool.
Are you seeing a specific error code (e.g., 2004 or 0x7D4) alongside the 100% hang?
List of sp flash tool error codes, meanings & how to fix (solution)
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.
This error usually means SP Flash Tool successfully sent the DA (Download Agent) to the phone’s RAM, but the DA failed to execute or communicate back. Common causes:
Quick fix attempt:
If still stuck, check the tool’s log file (SP_Flash_Tool_Log.txt) for “DRAM failed” or “S_BROM_CMD_JUMP_DA_FAIL”. That indicates a preloader/driver timing issue or incompatible DA.
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)
When using the SP Flash Tool, seeing the yellow progress bar reach Download DA 100%
and then stop is a frustrating but common bottleneck. This state usually signifies that the "Download Agent" (DA)—the small piece of software that communicates with your device's internal storage—has successfully loaded into the phone's SRAM, but the tool is failing to transition to the actual firmware flashing stage. Stack Overflow Why the Tool Gets Stuck at 100%
The "Download DA 100%" freeze is rarely a software "crash" and more often a communication or compatibility breakdown . Key reasons include: Secure Boot Conflict
: Many modern MediaTek devices (like those from Xiaomi or Oppo) have a secure bootloader that requires a specific "Secure DA" file to authorize the flashing process. Driver Handover Failure
: The PC might successfully send the DA file but fail to switch to the MediaTek VCOM driver required for the subsequent data transfer. Hardware Interruption
: Issues like a faulty USB cable, a loose port, or insufficient battery power can cause the target device to shut down unexpectedly right after the DA is received. Step-by-Step Solutions 1. Use a Secure Download Agent (DA) If your device has a secure bootloader, the default MTK_AllInOne_DA.bin might not work. Locate the specific DA : Look for a file named DA_SWSEC.bin
or a DA file specifically provided with your phone's stock firmware. Select it in the tool : In the SP Flash Tool interface, click the button next to Download-Agent and select the specialized 2. Re-install or Force VCOM Drivers
The jump from 100% DA to the actual download requires a stable VCOM connection. Manual Install Device Manager
, right-click your computer name, and select "Add legacy hardware" to manually install MediaTek Preloader USB VCOM Port Check 3. The "Hold Volume Up" Trick
: Ensure you are using a direct USB port on your motherboard (back of the PC) rather than a USB hub or front-panel port, which may lack sufficient power. 3. Hardware Interaction (Key Combos)
Sometimes the device needs a physical "nudge" to enter the correct state after the DA is sent. The Volume Trick : Try holding Volume Down
(or sometimes Volume Up, or both) while connecting the USB cable. Do not release them until the progress bar moves past the yellow DA stage. Power Reset
: If the phone has a removable battery, take it out and put it back in before starting. Ensure the phone is completely switched off before connecting. 4. Tool & File Configuration
SP Flash Tool 2025 Free Download Latest Version for Windows and Linux
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
Troubleshooting SP Flash Tool Stuck on "Download DA 100%" The "Download DA 100%" error is one of the most frustrating hurdles when flashing MediaTek (MTK) devices. While it looks like the process is finished because it reached 100%, the SP Flash Tool effectively freezes, and the yellow progress bar never starts. This usually indicates a communication breakdown between your PC and the device's bootloader. Why is SP Flash Tool Stuck?
This error typically stems from a handshake failure during the initial boot phase. Common culprits include:
Driver Conflicts: Missing or incorrect MediaTek VCOM drivers.
Authentication Requirements: Newer MTK chips require a Secure Boot Auth file.
Hardware Connection: A faulty USB cable or port providing power but not data.
Version Mismatch: Using an outdated version of SP Flash Tool for a modern chipset. Step-by-Step Solutions 1. Fix the VCOM Drivers
The most frequent cause is a driver that isn't properly signed or installed.
Action: Uninstall any existing MTK drivers from your Device Manager.
Action: Download the latest MTK VCOM USB Drivers and install them manually. If you are on Windows 10 or 11, you must disable Driver Signature Enforcement before installing. 2. Use the Correct Download Agent (DA)
The "Download DA" phase is when the tool sends a small piece of code to the phone's RAM to manage the flashing process.
Solution: In the SP Flash Tool interface, look at the "Download-Agent" field. Instead of the default MTK_AllInOne_DA.bin, try selecting the specific DA file provided with your phone's firmware.
Secure Boot: If your device is newer (MT67xx series), you likely need an Authentication File (.auth). Load this into the "Authentication File" slot in the tool. 3. Bypass Auth with MTK Meta Utility
Many modern MediaTek devices have a "Bypass" requirement to allow the SP Flash Tool to communicate.
Action: Use a tool like the MTK Auth Bypass Tool or MTK Meta Utility.
Process: Run the bypass tool, click "Disable Auth," and then connect your phone while holding the Volume buttons. Once the tool says "Success," immediately hit "Download" in SP Flash Tool. 4. Check Connection Settings
Sometimes the tool is looking for the wrong connection protocol. Go to Options > Option... > Connection. Ensure "USB" is selected.
Set the Battery setting to "with battery" if your phone has a non-removable battery, or "without battery" if it's removable.
Try changing the Baud Rate to a lower speed if the connection is unstable. 5. Hardware Troubleshooting
If the software fixes fail, the physical link is often the issue.
Change Ports: Avoid USB 3.0 (blue) ports; SP Flash Tool often prefers USB 2.0 ports.
Cable Quality: Use the original OEM cable or a high-quality data-sync cable.
The "Boot Key" Combo: Ensure you are holding the correct buttons (usually Volume Down or both Volume buttons) when plugging in the USB cable to trigger the VCOM port. Final Tip: Use the "Format All + Download" Caution
If you are still stuck at 100% DA, you might be tempted to switch from "Download Only" to "Format All + Download." Be careful: This will wipe your NVRAM/IMEI data, potentially leaving you with no cellular signal. Only use this as a last resort and ensure you have a backup of your device's original firmware.
Which MediaTek chipset or phone model are you currently trying to flash? Knowing the specific model can help narrow down the exact DA file you need.
How To install Sp Flash Tool -how to install sp flash tool in pc
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) If the drivers are installed
: 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.
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
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)
The SP Flash Tool getting stuck on "Download DA 100%" can be frustrating. Here are some steps and a feature you can use to potentially resolve the issue or make the process more useful:
Sometimes, Windows background services (especially Hyper-V, VirtualBox drivers, or chipset USB drivers from Intel/AMD) corrupt the DA transmission.
By following these steps, you should be able to resolve the issue of the SP Flash Tool being stuck on "Download DA 100%". If the problem persists, consider seeking help from device-specific forums or support channels.
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
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%".
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
SP Flash Tool Stuck on Download DA 100: A Comprehensive Guide to Troubleshooting and Resolution
The SP Flash Tool is a popular software utility used for flashing firmware on Android devices, particularly those powered by MediaTek (MTK) chipsets. While it's a reliable tool, users often encounter issues during the flashing process. One of the most common problems is the SP Flash Tool getting stuck on "Download DA 100." This article aims to provide a detailed guide on understanding the issue, its causes, and most importantly, step-by-step solutions to help you overcome this frustrating problem.
Understanding the Issue: SP Flash Tool Stuck on Download DA 100
When using the SP Flash Tool, the flashing process involves several stages. The "Download DA 100" stage is a critical point where the tool attempts to connect to the device and prepare it for firmware flashing. However, if the tool gets stuck at this stage, it can be due to various reasons, ranging from simple connectivity issues to more complex firmware or hardware problems.
Causes of SP Flash Tool Stuck on Download DA 100
Before diving into the solutions, it's essential to understand the potential causes of this issue:
Solutions to SP Flash Tool Stuck on Download DA 100
Now that we've identified the potential causes, let's explore the solutions:
Newer SP Flash Tool versions (v5.20xx and above) introduced stricter DA authentication for Android 10+ devices with secure boot. Conversely, very old versions (v3.x) cannot handle modern DA handshakes.
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 drivers are installed, the issue is often that the phone is connecting and disconnecting too fast for the tool to catch it.
1. The "Plug & Unplug" Method
2. The "Battery Pull" Trick (If removable battery)
3. The "Hold Volume Up" Trick