to query chipset info without flashing.
Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11 (32-bit & 64-bit) sprdvcom.inf , unisoc_iot.inf , rdavcom.inf , spr_rda.inf Common Hardware IDs
| Tool | Purpose | COM Port Use | |------|---------|---------------| | | Flashing full firmware (Pac files) | Auto-detects DIAG port | | SPD Upgrade Tool | OTA or partition flashing | COM port must be free | | Maui META v9.x | IMEI repair, RF calibration | Manual COM selection | | Write IMEI Tool | Restore IMEI after flash | COM22 must be active | | Miracle Box (SPD tab) | Unlock, reset FRP, read info | COM port automatically listed |
Hold down the key while clicking Restart in the Windows Start Menu. sprd u2s diag -com 22- drivers download
: Testing hardware components via software commands. Technical Specifications Specification Driver Name Unisoc / Spreadtrum USB Driver (SPRD U2S Diag) Supported OS
When a device is connected in diagnostic mode, the Windows Device Manager often flags it with a yellow triangle or labels it as "SPRD U2S Diag" or "COM 22". This guide provides everything you need to safely download, install, and troubleshoot these drivers on your PC. What is the SPRD U2S Diag Driver?
Navigate through > Advanced Options > Startup Settings and click Restart . to query chipset info without flashing
Even with the correct drivers, things can go wrong. Here are solutions for the most common issues:
: Includes automated executable setup files for easy deployment.
Click , navigate to the extracted driver folder containing sprdvcom.inf , and hit Next . Navigate through > Advanced Options > Startup Settings
You may have selected the wrong architecture. Ensure you are using 64-bit drivers ( amd64 folder) for a 64-bit version of Windows, and 32-bit drivers ( x86 folder) for a 32-bit Windows.
Navigate to tab and click the Advanced button.