Quectel USB DIAG Port port (COM/LPT/Serial) drivers

Drivers /  Ports (COM/LPT/Serial) /  Quectel /  USB DIAG Port
Quectel

Device information

Name

USB DIAG Port

Manufacturer

Quectel

Type

Port (COM/LPT/Serial)

Hardware IDs

USB\VID_1286&PID_4E3D&MI_02
USB\VID_2C7C&PID_0457&MI_00
USB\VID_2C7C&PID_0458&MI_00
USB\VID_2C7C&PID_0900&MI_02
USB\VID_2C7C&PID_0901&MI_03
USB\VID_2C7C&PID_0902&MI_03
USB\VID_2C7C&PID_0903&MI_02
USB\VID_2C7C&PID_0904&MI_03
USB\VID_2C7C&PID_6001&MI_02
USB\VID_2C7C&PID_6002&MI_02
USB\VID_2C7C&PID_6003&MI_02
USB\VID_2C7C&PID_6004&MI_02
USB\VID_2C7C&PID_6005&MI_02
USB\VID_2C7C&PID_6006&MI_02
USB\VID_2C7C&PID_6007&MI_00
USB\VID_2C7C&PID_600A&MI_02
USB\VID_2C7C&PID_600B&MI_02
USB\VID_2C7C&PID_600C&MI_02
USB\VID_2C7C&PID_6026&MI_02
USB\VID_2C7C&PID_6120&MI_02
USB\VID_2CA3&PID_4010&MI_02
USB\VID_3763&PID_3C93&MI_00
USB\VID_3C93&PID_FFFF&MI_08
Show all 

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18 available drivers

USB DIAG Port

Version:

4.25.24.512

Date:

2 September 2025

Size:

1.83 MB

INF file:

sprdvcom.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

5.0.1.18

Date:

19 July 2024

Size:

292 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

5.0.1.14

Date:

21 February 2024

Size:

290 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

2.21.36.140

Date:

29 November 2023

Size:

1.78 MB

INF file:

unisoc_iot.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

15.26.54.14

Date:

13 November 2023

Size:

286 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

5.0.1.7

Date:

6 May 2023

Size:

274 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

5.0.1.5

Date:

16 February 2023

Size:

313 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

15.26.54.10

Date:

29 July 2022

Size:

291 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

5.0.1.6

Date:

15 June 2022

Size:

525 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64/x86

USB DIAG Port

Version:

30.0.72.5

Date:

9 May 2022

Size:

280 KB

INF file:

qyser.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

2.21.36.135

Date:

12 February 2022

Size:

1.79 MB

INF file:

unisoc_iot.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

4.19.38.141

Date:

13 November 2021

Size:

3.53 MB

INF file:

sprdvcom.inf
Windows 11, 10, 8.1, 8, 7
x64/x86

USB DIAG Port

Version:

5.0.1.5

Date:

28 September 2021

Size:

530 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64/x86

USB DIAG Port

Version:

5.0.1.4

Date:

28 May 2021

Size:

309 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

4.19.38.138

Date:

31 October 2020

Size:

1.84 MB

INF file:

sprdvcom.inf
Windows 11, 10, 8.1, 8, 7
x64

USB DIAG Port

Version:

4.19.38.135

Date:

6 August 2020

Size:

3.5 MB

INF file:

sprdvcom.inf
Windows 11, 10, 8.1, 8, 7
x64/x86

USB DIAG Port

Version:

5.0.1.1

Date:

3 August 2020

Size:

778 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64/x86/arm

USB DIAG Port

Version:

5.0.1.1

Date:

30 October 2014

Size:

771 KB

INF file:

qcser.inf
Windows 11, 10, 8.1, 8, 7
x64/x86/arm

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