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%". Phase 1: The "Port & Connection" Fixes (Most Likely Solutions) 1. The "Device Manager" Check (Crucial) This is the most common cause. You need to see if the computer recognizes the phone at all.
Open Device Manager on your PC (Windows Key + X -> Device Manager). Plug your phone into the PC (while it is turned off). Watch the list. Does a device appear and disappear immediately?
If you see "MediaTek PreLoader USB VCOM Port" appear briefly: The connection is good, but the timing is off. Proceed to Phase 2. If you see nothing happen: You have a driver or cable issue. Install the MediaTek VCOM Drivers (you may need to disable Windows Driver Signature Enforcement to install them successfully). If you see "Unknown Device": Right-click it -> Update Driver -> Browse my computer -> Let me pick -> Select "USB Serial Device" or "MediaTek PreLoader".
2. Try a Different USB Port
Avoid USB 3.0 ports (Blue ports) as they often cause compatibility issues with older MTK tools. Use a USB 2.0 port (Black port). If you are on a Desktop, use a port on the back of the tower (directly connected to the motherboard), not the front panel ports.
3. Change the USB Cable
Many modern cables are "charging-only" cables with no data wires. Use a high-quality, short data cable. Old BlackBerry or Nokia cables often work best for this. sp flash tool stuck on download da 100
Phase 2: The "Timing" Fixes 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
Load the Scatter file in SP Flash Tool. Click Download . Turn the phone OFF completely. Connect the USB cable to the PC. As soon as you plug the phone into the PC, watch the progress bar . If it stays at 0% or jumps to 100% and freezes, unplug the phone. Wait 2 seconds, plug it back in. Repeat this 3-4 times. Sometimes the preloader handshake requires a few attempts to "wake up."
2. The "Battery Pull" Trick (If removable battery) This is a very common issue when flashing
Remove the battery. Click Download in SP Flash Tool. Connect the USB cable (phone should be dead). Insert the battery while the cable is connected. This often forces the preloader to trigger.
3. The "Hold Volume Up" Trick