Windows 10 and 11 block unsigned or third-party service drivers by default.
This is actually normal behavior for Spreadtrum devices in bootloader/download mode. The device will only hold the COM port connection if a flashing tool (like SPD Upgrade Tool) is actively waiting for it. spd sciandroidusbdriverjungov4 best
"You must install the driver via a batch script." Truth: Manual installation via Device Manager is always safer and more reliable. Windows 10 and 11 block unsigned or third-party
Hold down the on your keyboard and click Restart in the Windows Start Menu. spd sciandroidusbdriverjungov4 best