Cause: Windows blocked the driver due to signature enforcement.
Fix: Reboot into Disable Driver Signature Enforcement mode and reinstall.
Use this method if the automatic installer failed or if you have the raw driver files (INF files).
To confirm the V1632 driver is working correctly: Driver Mediatek Usb Port V1632
The Driver Mediatek Usb Port V1632 is a specific USB driver package developed by MediaTek Inc. It is designed to facilitate communication between a Windows PC and a MediaTek-powered device when it is in Preloader or Download mode (commonly known as BROM mode).
Unlike standard MTP or ADB drivers that work when the phone is powered on, the V1632 driver activates when the device is powered off or when the battery is disconnected. This low-level connection allows software like SP Flash Tool, Miracle Box, or CM2 to write firmware (ROM), repair IMEI, or unbrick devices. Cause: Windows blocked the driver due to signature
Key characteristics of V1632:
A: No. UNISOC (formerly Spreadtrum) requires completely different USB drivers (SprdUsbSer.sys). To confirm the V1632 driver is working correctly:
This driver is essential for the following operations:
Warning: Many third-party websites bundle malware with driver packs. Always download from trusted sources.
Safe sources:
Expected file details: