You might be trying to flash a custom ROM (LineageOS, Pixel Experience), unbrick a dead Android tablet, or install a stock firmware using SP Flash Tool (Smart Phone Flash Tool). Instead of progress, you are stuck. The red bar doesn't move. The yellow bar never appears. The tool claims your phone is not connected.
If the device is already recognized as an ADB interface or MTP device, Windows may not reassign it to the MediaTek preloader driver when the device reboots into preloader mode. error mediatek driver not detected mct
Even with the driver installed, many users still see the error because they miss the connection window. Here is the professional flashing technique: You might be trying to flash a custom
Before diving into driver surgery, perform these quick checks: unbrick a dead Android tablet