Sp Flash Tool Stuck At Download Da 100
If you are stuck at DA 100% because you flashed the wrong firmware (e.g., a file meant for a different variant of your phone), forcing it might cause a hard brick. Always double-check that the scatter file matches your specific device model number.
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Tags: #SPFlashTool #AndroidRepair #Mediatek #TechSupport #UnbrickAndroid
Fixing the "SP Flash Tool Stuck at Download DA 100%" Error Getting stuck at Download DA 100% is a common and frustrating hurdle when using the SP Flash Tool to flash firmware on MediaTek (MTK) devices. This specific hang-up usually indicates a communication breakdown between your PC and the device's bootloader. What is Download DA?
The Download Agent (DA) is a small piece of software sent from the SP Flash Tool to the device's RAM. Its job is to handle the actual flashing process by communicating between the computer and the device’s storage. When it hits 100% but nothing happens, the tool has successfully sent the DA, but the DA cannot "handshake" with the device to start writing data. Step-by-Step Solutions 1. Use an MTK Auth Bypass Tool
Modern MediaTek devices often have a "Secure Boot" feature that blocks unauthorized flashing. If your progress bar is stuck at 100%, it might be waiting for authentication.
The Fix: Use an MTK Auth Bypass Tool (like the LibUsb/MTK Bypass) to disable the secure boot protection before you click "Download" in SP Flash Tool. 2. Verify Your VCOM Drivers
Incorrect or unstable drivers are the most frequent culprits for communication failures.
Update Drivers: Launch your Device Manager, connect your phone, and ensure it's detected as "MediaTek USB VCOM" or "Preloader USB VCOM" without a yellow exclamation mark.
Manual Install: You may need to manually point the driver update to the Mediatek (VCOM) driver files. 3. Try a Different Boot Key Combination The device must be in the correct mode to accept the DA.
Common Keys: Try holding the Volume Up, Volume Down, or both buttons simultaneously while plugging in the USB cable.
Connection State: Ensure the phone is completely switched off before connecting. 4. Change Your Hardware Setup Sometimes the issue is physical, not software-based. Stuck at Download DA 100% - Hovatek
When the SP Flash Tool gets stuck at Download DA 100% (often accompanied by the red progress bar),
it typically signifies a communication breakdown between the computer and the device's bootloader after the initial Download Agent (DA) has been sent
. This means the DA was successfully loaded into the device's SRAM, but the tool is failing to initialize the next step, such as NAND/eMMC handshake or DRAM activation. Stack Overflow Core Causes DA Mismatch: The default MTK_AllInOne_DA.bin
is incompatible with the device's specific security level or chipset. Driver Failure: MediaTek PreLoader USB VCOM
driver is incorrectly installed or experiencing a port hang. Hardware Handshake Issue: sp flash tool stuck at download da 100
The device isn't in the correct boot state (BROM mode) to accept the next phase of flashing. Cable/Port Issues:
Physical connection instability prevents the high-speed data transfer required after the DA stage. Stack Overflow Actionable Solutions 1. Use a Secure Download Agent (DA)
Modern MediaTek devices (especially those with Secure Boot) often require a specific custom DA file rather than the generic one provided with the tool. SP Flash Tool Error Solutions Guide | PDF - Scribd
Some MediaTek devices refuse to enter download mode properly if the battery is too low, too high, or if the device is powered on. Many models require the battery to be around 50-70% and the device completely powered off.
Newer phones often require newer tools, but conversely, newer tools break older phones.
Using a Download Agent (DA) that doesn’t match your chipset (e.g., using an MT6577 DA for an MT6795) or a mismatched scatter file will cause a freeze at 100%.
Newer SP Flash Tools (v5.20+) allow you to choose a specific Download Agent.
If the checklist didn't work, proceed systematically.
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.
If you’ve tried everything here and still face the issue, visit the XDA-Developers forum for your specific phone model. Chances are someone has already posted a custom DA or a unique workaround.
Have you solved this error using another method? Share your experience in the comments below!
Disclaimer: Flashing firmware can void warranties and potentially brick devices. Proceed at your own risk. Always back up your data before attempting these steps.
Getting stuck at "Download DA 100%" in SP Flash Tool is a common hurdle for MediaTek users
. This usually signifies a handshake or compatibility issue between your PC and the device's bootloader.
Here is a blog post guide to help you troubleshoot and fix this issue. How to Fix SP Flash Tool Stuck at "Download DA 100%"
If you're trying to flash firmware on your MediaTek (MTK) device and the progress bar hits 100% on the red "Download DA" stage but won't move to the yellow "Download" stage, you aren't alone. This hang-up usually means the tool has sent the Download Agent (DA) If you are stuck at DA 100% because
, but your phone isn't responding correctly to start the actual flashing process. Follow these steps to get the process moving again. 1. Check Your Connection Basics
Sometimes the simplest physical issues cause communication stalls. Try a different USB cable and port
: Always use a high-quality data cable. If you’re on a desktop, use the rear USB ports
(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
: While connecting the phone, watch your Device Manager. It should briefly show "MediaTek Preloader USB VCOM Port" or similar. If it shows "Unknown Device," your drivers are the problem. 3. Change Your Download Agent (DA) If your phone has Secure Boot , the default MTK_AllInOne_DA.bin might not work. Navigate to the Download Agent field in SP Flash Tool.
and select a specific DA file for your device model if provided with your firmware.
If you don't have a specific one, try different versions of the standard DA file included in various SP Flash Tool versions. 4. Try Different Key Combinations
The tool often needs a specific hardware trigger to "handshake" and move past the 100% DA mark. Volume Down : Hold this while plugging in the USB cable. : If Down doesn't work, try holding Volume Up. Both Volume Buttons : Some devices require holding both simultaneously. No Battery
: If your battery is removable, try the process with the battery out, or try inserting it exactly when the DA bar hits 100%. 5. Adjust SP Flash Tool Options A few internal settings can sometimes bypass the hang:
[Revised] How to use SP Flash tool to flash Mediatek firmware
Troubleshooting Report: SP Flash Tool Stuck at "Download DA 100%"
When the SP Flash Tool gets stuck at "Download DA 100%," it generally indicates a communication breakdown between the software and the device's Boot ROM after the initial Download Agent (DA) has been sent. 1. Core Causes
Driver Conflicts: Outdated or multiple conflicting VCOM/Preloader drivers can stall the process.
Hardware Connection: Faulty USB cables, unstable ports, or physical damage to the phone's charging port.
Incorrect DA File: Using a Download Agent that is incompatible with the specific MediaTek chipset.
Device State: The phone may not be in the correct "switched off" state or might have lost power mid-process. 2. Recommended Solutions Action Category Specific Steps to Take Driver Refresh incorrect file selection
Uninstall existing VCOM/MTK drivers using USBDeview and manually reinstall the latest Mediatek (VCOM) drivers. Physical Link
Swap to a different USB cable (preferably the original) and try a different USB port on the PC. Tool Settings
Use the latest version of SP Flash Tool. Navigate to Options > Option > Connection > Battery and ensure it is set to "with battery". Manual Trigger
Hold the Volume Down or Volume Up button while connecting the device to force the PC to recognize the Preloader. Advanced Fix
If the error persists, try the "Format all + Download" option (Note: this will wipe all data). 3. Critical Checklist
How To Flash ROM for Every China Phone with the SP Flash Tool ! [HD]
Getting stuck at "Download DA 100%" (the red bar) typically means SP Flash Tool
has communicated with your device but cannot initialize the handshake to start the actual flashing process
. This is often caused by driver conflicts, incorrect file selection, or connection issues. Common Fixes Select the Correct Download Agent (DA):
Many modern MediaTek (MTK) devices require a specific Secure Boot DA file. Instead of the default MTK_AllInOne_DA.bin , try selecting DA_SWSEC.bin
or a DA file specifically provided with your device's firmware. Fix Driver Issues: Ensure you have the MTK VCOM USB Drivers Preloader Drivers installed, not just standard ADB drivers. If the device isn't being recognized, try right-clicking flash_tool.exe , going to Properties > Compatibility , and setting it to Windows XP Service Pack 3 , then run it as Administrator Check Hardware Connection:
Try a different high-quality USB cable and a different USB port (preferably a USB 2.0 port on the back of the PC).
Ensure the device is powered off before connecting. For some devices, you may need to hold the Volume Down button while plugging it in. Update SP Flash Tool:
Older versions of the tool may not support newer MTK chipsets. Download the latest version of SP Flash Tool to ensure compatibility. Bypass Authentication (Auth):
If your device has a locked bootloader or secure boot, you might need an MTK Bypass Tool
(like MCT Bypass or LibUSB) to disable the security check before clicking "Download" in SP Flash Tool. Troubleshooting Steps Restart the process:
Close the tool, unplug the device, and reinsert the battery (if removable). Verify Scatter File: Ensure the Android_scatter.txt file exactly matches your device's model and chipset. Ensure there are no spaces or non-English characters
in the folder path where the SP Flash Tool or your firmware is located. Do you know the specific MediaTek chipset (e.g., MT6737, MT6580) or the model of the device you are trying to flash? SP Flash Tool Error Solutions Guide | PDF - Scribd
