Once the diag port is active, connect your device via USB.
: You can find versions such as the Qualcomm Nv-Read-Write Tool V1.0 , which is a related utility for generic devices. nvitems reader writer v10 download link
(Diag Mode), and specific Qualcomm USB drivers must be installed on the PC. Alternatives Once the diag port is active, connect your device via USB
Open the tool and select the correct COM Port assigned to your device in the Windows Device Manager. Alternatives Open the tool and select the correct
| Error | Solution | |-------|----------| | “Port not found” | Install Qualcomm USB drivers v2.1.2.0 or newer. | | “NV item write failed” | Device must be rooted or in factory DIAG mode. Some OEMs (Samsung, Xiaomi) block writing without an authorized service token. | | “Checksum mismatch” | Re-download the tool; file corrupted. | | “Not responding on Windows 11” | Run in Windows 7 compatibility mode. |
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