When the SP Flash Tool is stuck at Download DA 100% (often accompanied by a red progress bar), it typically indicates a communication failure between the software on your PC and the device's boot ROM. This means the Download Agent (DA)—the file responsible for facilitating the flash process—has been sent to the device, but the tool is failing to receive a response or move to the next stage. Primary Causes
Driver Issues: The Mediatek VCOM drivers may be incorrectly installed or unstable.
Hardware Connection: A faulty USB cable, loose port, or insufficient power from the PC's USB port can halt the process.
Authentication Requirements: Newer devices with Secure Boot often require a specific custom DA file or an authentication (.auth) file to proceed beyond this point.
Mismatched Hardware: The chipset may not be on the supported list for your current version of the tool. Recommended Solutions
Update and Run as Admin: Use the latest version of SP Flash Tool and ensure you right-click the .exe to Run as Administrator. Fix Driver Communication:
Reinstall the VCOM drivers manually through the Device Manager.
For modern chipsets, try installing USBDK to handle the connection more stably. Adjust Connection Settings:
Switch to a different USB port (preferably a rear port if using a desktop) or use a different USB cable.
In the tool's settings, navigate to Options > Connection and try switching the USB Speed to Full Speed instead of High Speed.
Use Specific Button Combinations: Power off the device completely and try holding the Volume Up, Volume Down, or both buttons while plugging it into the PC to force it into the correct boot mode.
Change the Download Agent: If the default MTK_AllInOne_DA.bin fails, you may need to find a DA file specifically for your phone model, especially if it has Secure Boot.
Bypass Protections: For some newer Mediatek chipsets, you may need to use a Bypass Utility first to disable protection before the tool can successfully detect the device beyond the 100% DA stage. Stuck at Download DA 100% - Hovatek
SP Flash Tool Stuck at Download DA 100: A Comprehensive Guide to Fix the Issue
The SP Flash Tool is a popular software used to flash firmware on Android devices, particularly those powered by MediaTek (MTK) chipsets. However, some users encounter issues while using the tool, such as getting stuck at 100% during the download DA (Download Agent) process. If you're facing a similar problem, you're in the right place. In this article, we'll explore the causes of the issue and provide step-by-step solutions to help you resolve it.
Causes of SP Flash Tool Stuck at Download DA 100
Before we dive into the solutions, let's understand the possible reasons behind the issue:
Solutions to Fix SP Flash Tool Stuck at Download DA 100
Now, let's move on to the solutions:
Solution 1: Update SP Flash Tool to the Latest Version
Solution 2: Verify and Re-download Firmware File
Solution 3: Check and Fix USB Connection Issues
Solution 4: Prepare Device for Flashing
Solution 5: Use a Different Flash Tool or Method
Conclusion
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)
, 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
SP Flash Tool gets stuck at "Download DA 100%", it usually means
the tool has successfully sent the initial boot agent but cannot communicate further with the device's storage (DRAM or EMMC)
. This is often caused by driver issues, incorrect files, or a hardware communication block. 🛠️ Immediate Fixes If you are stuck at 100%, try these steps in order: Change the Download Agent (DA): In the tool, click the button next to Download-Agent MTK_AllInOne_DA.bin from the SP Flash Tool folder.
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
on the back of the PC (motherboard) rather than the front case ports. Shorten File Paths: Move the SP Flash Tool folder and your ROM folder to the root of your drive ) to avoid long path errors. ⚠️ Important Precautions SP Flash Tool Error Solutions Guide | PDF - Scribd
Getting stuck at "Download DA 100%" (the red bar) typically means SP Flash Tool sp flash tool stuck at download da 100
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
When the SP Flash Tool gets stuck at Download DA 100% (typically shown as a red bar), it means the software has successfully sent the Download Agent (DA) to the device, but the device and the tool aren't communicating well enough to start the actual flashing process .
Here is how you can troubleshoot and resolve this common MediaTek (MTK) flashing issue: 1. Check Your Drivers
This is the most common culprit. The tool often hangs if the VCOM drivers are not properly installed or are conflicting with other USB drivers .
Reinstall Drivers: Uninstall existing MediaTek drivers and perform a fresh install of the MTK USB VCOM Drivers .
Device Manager: Open Device Manager on your PC and watch for "MediaTek Preloader" or "VCOM" to appear when you connect the phone . If it shows as an "Unknown Device," right-click it and manually update the driver . 2. Connection & Hardware Basics
Sometimes the simplest fixes work when data transfer is interrupted:
Try Different Ports: Switch to a USB 2.0 port instead of USB 3.0 (blue) .
Change Cables: Use a high-quality, short USB data cable. Some cables only support charging, not data transfer .
Key Combos: While connecting the USB cable to the switched-off phone, try holding down the Volume Down or Volume Up button to force the device into the correct mode . 3. SP Flash Tool Settings
If drivers are fine, the tool's internal configuration might be the issue:
Run as Admin: Right-click flash_tool.exe and select Run as administrator . When the SP Flash Tool is stuck at
Compatibility Mode: Try setting the tool to run in Windows XP Service Pack 3 compatibility mode through its properties menu .
Disable Preloader: In some cases, unchecking the Preloader box in the partition list allows the rest of the firmware to download successfully . Warning: Only do this if you are sure your current preloader is not corrupted. 4. Advanced Software Fixes
How To Flash ROM for Every China Phone with the SP Flash Tool ! [HD]
When the SP Flash Tool is stuck at "Download DA 100%" (often accompanied by a purple progress bar), it typically indicates a communication failure between the software and your device's Boot ROM. This stage is when the Download Agent (DA) is being sent to the phone's internal SRAM to prepare it for flashing. Common Fixes for DA 100% Freeze
Reinstall MediaTek Drivers: Improperly installed or corrupted VCOM/MTK drivers are the most frequent cause. You may need to manually uninstall existing drivers and reinstall them from a reliable source like the Hovatek Forum Guide.
Use a Different Download Agent (DA): Some devices (especially those with secure boot) require a specific DA file rather than the default MTK_AllInOne_DA.bin. You can load a custom DA by clicking "choose" next to the Download Agent field in the tool. Hardware Troubleshooting:
Try a different USB cable or PC port (prefer USB 2.0 over 3.0).
Ensure your device is completely switched off with a charged battery inside before connecting.
Attempt the connection while holding down the Volume Up, Volume Down, or both buttons to force the correct boot mode.
Modify Tool Settings: Navigate to Options > Option > Download and try unticking "DA DL All with Checksum" to bypass potential integrity check hangs. Why This Happens
The "Download DA 100%" message means the tool has successfully reached the end of the DA transfer but hasn't received a "success" handshake back from the device. This "silence" is usually due to the device not recognizing the command or losing power/connection mid-process.
Are you seeing a specific numerical error code (like 2004 or 4032) alongside the freeze? SP Flash Tool Error Solutions Guide | PDF - Scribd
When the SP Flash Tool gets stuck at "Download DA 100%", it typically indicates a communication failure between the software and the device's boot ROM after the initial handshake is complete. The "Download DA" phase is when the tool sends the Download Agent (the code that handles the actual flashing) to the phone's internal memory; sticking at 100% means the DA was sent but never successfully executed or "responded" back. Common Causes & Solutions Stuck at Download DA 100% - Hovatek
Here’s a concise troubleshooting post you can use for forums, social media, or a tech blog:
Title: SP Flash Tool Stuck at “Download DA 100” — Quick Fixes
Body: Having trouble with SP Flash Tool hanging at “Download DA 100”? Try these steps in order:
If none of these work, include this info when asking for help:
Good luck — provide the details above if you want me to suggest the next steps for your exact device.
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Here’s the complete text for the common error:
"SP Flash Tool stuck at download DA 100%"
This usually indicates a communication issue between the SP Flash Tool and the MediaTek device during the firmware flashing process. Common causes and fixes include: Outdated SP Flash Tool version : Using an
If still stuck, try:
When the tool stops at this exact point, the communication between the PC, the tool, and the phone's boot ROM is broken or out of sync.