Sprd U25 Diag Driver Work [2021] Page

Press or F7 to select "Disable driver signature enforcement." After rebooting, try to install the driver again. Troubleshooting: "SPRD U2S Diag Port Not Showing"

adb shell su setprop persist.sys.usb.config diag,adb

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: It relays real-time diagnostics from the phone sensors and processors to PC monitors. Supported Operating Systems

Hold the required boot keys (usually , or just Volume Down depending on the specific model). Press or F7 to select "Disable driver signature enforcement

: The diag driver typically uses the USB interface for communication, ensuring high-speed data transfer.

Hold down the key while clicking Restart in your Windows Start Menu. If you share with third parties, their policies apply

The driver will only "work" (show an active COM port) if the mobile device is specifically in .

Once your driver functions properly, you can use these industry-standard utilities: