Sp Flash Tool Stuck On Download Fixed Da 100

SP Flash Tool Stuck at 100% DA Download? Here’s How to Fix It

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.

Use MTK Meta Tool or Miracle Box:

Download MTK Meta Tool (official from MediaTek).
Connect the phone in BROM mode.
Go to "Hardware Test" → "eMMC Test".
Run a read/write test on a small block (e.g., 1MB).
If you see "Response CRC error" or "Timeout", the eMMC is failing.

Workaround: In SP Flash Tool, uncheck all partitions except preloader, boot1, and boot2. Flash only those. If that succeeds, flash partitions one by one. A dying eMMC can sometimes be flashed in small chunks.

Solution 10: Replace Preloader via JTAG / Hardware Programmer (Last Resort)

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. sp flash tool stuck on download da 100

You will need:

An eMMC programmer (e.g., Easy JTAG, Medusa Pro, or Octoplus Box).
To desolder the eMMC chip or attach clips.

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. SP Flash Tool Stuck at 100% DA Download

Fix: SP Flash Tool Stuck on "Download DA 100%" – Complete Troubleshooting Guide

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.

Primary Causes of "Download DA 100%" Error

| Cause Category | Specific Issue | |----------------|----------------| | Driver Issues | Wrong USB VCOM driver, driver signature disabled, or driver conflict. | | USB Problems | Bad cable, USB 3.0 port, loose connection, or power fluctuation. | | Storage Failure | Corrupted eMMC, damaged partitions (especially NVRAM or bootloader). | | Bootloader State | Bootloader is locked or partially bricked (BROM mode disabled). | | Version Mismatch | Using an outdated DA or SP Flash Tool version for your chipset. | | Battery/Voltage | Dead battery, battery too low, or phone refusing to stay in BROM mode. |

Solution 9: Flash Using a Different PC or Linux (Live USB)

Sometimes, Windows background services (especially Hyper-V, VirtualBox drivers, or chipset USB drivers from Intel/AMD) corrupt the DA transmission. Download MTK Meta Tool (official from MediaTek)

2. Use the Correct Download Agent (DA) File

Different chipsets require specific DA versions.

Try a different DA file: In SP Flash Tool, go to Options → Download Agent → select a different .bin file (e.g., MTK_AllInOne_DA.bin or a custom DA for your chipset).
For newer chips (Helio G-series, Dimensity), use the DA file extracted from the stock ROM of that device.

Solution 4: Flash in "Download Only" Mode (Not "Firmware Upgrade")

Many users unknowingly select "Firmware Upgrade" which tries to repartition the eMMC and rewrite the preloader—this frequently triggers a DA hang if any partition is corrupted.