Check your Windows Device Manager. You should see a new port (e.g., "SPRD NPI" or "SPRD U2S DIAG") appear under "Ports (COM & LPT)".
To successfully , you’ll need:
However, when you successfully enter Diag Mode, the device disables these security barriers and opens a diagnostic serial port. This allows service tools to communicate directly with the modem. enter diag mode spd
Restoring original identification numbers after software corruption. Check your Windows Device Manager