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
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%" sp flash tool stuck at download da 100
Swap to a different USB cable (preferably the original) and try a different USB port on the PC. Open Device Manager on your PC and watch