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Open and expand the Ports (COM & LPT) section.
sprd_u2s_diag -com 22 -firmware firmware.bin
: Uninstall the current driver completely, reboot, and install an older legacy version of the SPD driver pack. Error: The COM Port Changes Constantly sprd u2s diag -com 22- drivers download
Swap to an alternative USB port, preferably a rear on desktops, as high-speed USB 3.0 controller chips can occasionally drops serial packets.
You can check this in Device Manager → Device Properties → Details → Hardware Ids.
If you downloaded an auto-installer, such as the SPD_Driver_R4.20.4201 package from Hovatek: This public link is valid for 7 days
If you have the driver folder, the key files are usually:
: Restoring original IMEI numbers after a corrupted firmware update.
After your computer restarts, press or F7 to select "Disable driver signature enforcement" . Phase 2: Manual Installation via Device Manager Can’t copy the link right now
If the port is visible without any warning triangles, your software tools will now be able to detect the device seamlessly. Troubleshooting Common Errors 1. Device Keeps Disconnecting (Boot Loop)
Once installed successfully, you need to verify that your computer recognizes the device properly. Keep your phone connected to the PC.
: Ensure you download the "sprd u2s diag" tool from a reliable source. Extract it to a folder on your computer.
I cannot host files, but searching "Unisoc USB Driver XDA Developers" will give you a verified, clean download thread.