Sprd U2s Diag Reset Tool

Extract the folder contents to your local disk (e.g., C:\SPRD_Tool ). Right-click the .exe file and select . Step 2: Boot the Device into Diag Mode Power off your Unisoc smartphone completely.

Disconnect the USB cable. If the device does not automatically reboot, press and hold the for roughly 10–15 seconds to force a fresh boot cycle. Note that the first boot after a diagnostic reset can take up to 10 minutes. Troubleshooting Common Errors

Select or manually enter the exact identified in Device Manager. sprd u2s diag reset tool

The port is being blocked by another software or antivirus.

Ensure you are using the correct loader files for your specific chip (e.g., SC9863A, SC7731). Extract the folder contents to your local disk (e

Comprehensive Guide to the SPRD U2S Diag Reset Tool for Spreadtrum Devices

The U2S DIAG Reset Tool effectively acts as a for the security protocols that lock the diagnostic partition during the boot process. It allows service software (like SigmaKey, Chimera, or Miracle Box) to finally "see" the modem and perform repairs. Disconnect the USB cable

Disconnect the phone from the USB cable. If it doesn't reboot automatically, hold down the button for 10–15 seconds to force a restart. The first boot after a reset may take several minutes as the system rebuilds its cache. Troubleshooting Common Errors