| Fix | Success Rate | |------|----------------| | USB 2.0 + good cable | ⭐⭐⭐⭐⭐ | | Correct VCOM drivers | ⭐⭐⭐⭐⭐ | | Disable driver signature | ⭐⭐⭐⭐ | | Change DA file | ⭐⭐⭐⭐ | | Adjust SP Flash Tool settings | ⭐⭐⭐⭐ | | Correct connection timing | ⭐⭐⭐⭐ | | Remove battery | ⭐⭐⭐ | | Different SP version | ⭐⭐⭐ |
prevent the tool from maintaining a stable connection once the initial handshake (the DA stage) is complete. Secure Boot Requirements sp flash tool stuck on download da 100
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 | Fix | Success Rate | |------|----------------| | USB 2
Beyond software, the physical connection and user procedure are equally critical. The infamous "timing issue" with MediaTek devices requires the user to click "Download" in the SP Flash Tool before connecting the powered-off device to the USB port. If the device is connected too early, Windows may enumerate it as a generic device, interfering with the Preloader mode. Conversely, if connected too late, the Preloader window of opportunity (usually 1–2 seconds after battery insertion or USB connection) may close. Hardware flaws such as a loose USB port, a cable that does not support data transfer (charge-only cables), or an unstable power supply from a USB hub can introduce bit errors during DA transmission, causing the checksum to fail and the device to stall without an error message. Even the device’s battery level matters: a deeply discharged battery may prevent the Preloader from loading into RAM properly, leading to a hang at DA 100. The infamous "timing issue" with MediaTek devices requires
This is an advanced repair method for technicians only.
: 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.
Set the tool to run in Windows XP Service Pack 3 compatibility mode via the file properties.