If you are reading this, you have likely been staring at your computer screen for the past 20 minutes, watching a progress bar refuse to budge. You are trying to flash a stock ROM, unbrick a Mediatek (MTK) Android device, or install a custom recovery. You loaded the scatter file, clicked "Download," connected your phone... and then it happened.
| Symptom | Most Likely Fix | |--------|----------------| | Stops at DA 100%, no error | Wrong DA / USB 3.0 port | | Reaches DA 100% then phone disconnects | DA authentication failure – use bypass tool | | DA 100% with red progress bar | Driver issue – reinstall VCOM drivers | | Works on old PC but not new | Driver signature enforcement or USB 3.0 | sp flash tool stuck at download da 100
Happy Flashing!
. This is often due to a communication breakdown between your PC and the MediaTek hardware. Common Solutions Use an Auth Bypass Tool SP Flash Tool Stuck at Download DA 100%
: 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. Install the latest MediaTek (MTK) VCOM/Preloader drivers for
Don't panic! Here is a step-by-step troubleshooting guide to get you unstuck.