Resolve LAUNCH SmartLink: Not recognized as J2534 adapter

Problem: When I connect the LAUNCH SmartLink C to my computer, the system only recognizes the Ethernet interface. Although I have installed the drivers, I am unable to use the LAUNCH SmartLink as a J2534 passthrough adapter. In Device Manager, it appears as “ACER”. How to resolve the issue where the LAUNCH SmartLink C is not recognized as a J2534 pass-through adapter? My goal is to use the device with wiTECH 2.0.

 

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Log details attached:

C: (Program Files (x86) LAUNCH SmartLink\Drivers\Ethernet\DriverSetup_x64.exe Start to detect driver installation system…

Computer version: Microsoft Windows 10

System type: 64-bit operating system

C:\Program Files (x86)\LAUNCH\SmartLink\Drivers\Ethernet\RNDIS.inf

Path of current driver file: Device detection: Device not found!

Start to pre-install driver..

Driver already installed: oem318.in

Driver installed successfully!

Path of current driver file:

C:\Program Files (x86)\LAUNCH\Smartlink\Drivers\Ethernet\smartbox.inf Device detection: Device not found!

Start to pre-install driver…

DllVersion :01.20 by 2026-02-25 APIVersion :04.04 — J2534Dll() — 0

PassThruOpen()

====== Current local diagnosis ======

PassThruScanForDevices()

DeviceCount :0x00000001

Connect no error Connect

A7 success

-> 55 aa f0 f8 00 03 00 21 14 3e

-> 55 aa f0 f8 00 03 00 21 14 3e

-> 55 aa f0 f8 00 03 00 21 14 3e

ErrorCode :0x00000009 (Timeout.)

PassThruGetLastError()

—————— Error ——-Timeout.

ErrorCode :0x00000000 (USER_ERR_NO_ERROR)

— ~J2534Dll() —

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If I try to update, I get this error:

DllVersion :01.20 by 2026-02-25 APIVersion :04.04 — J2534Dll() — 0

PassThruFirmwareUpdate()

–GetDeviceIPAddress()– RequestByUdpSocket!

-> 55 aa f0 f8 00 04 00 21 14 00 39

-> 55 aa f0 f8 00 04 00 21 14 00 39 PassThruFirmwareUpdate RecvData timeout iRet: 0x842

— ~J2534Dll() —

 

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Solution:

The logs indicate that the driver pre-installation was successful, yet the device is not detected.

Runtime logs show a timeout error, indicating a communication failure.

An attempt to upgrade the device firmware also resulted in a data reception timeout, causing the update to fail.

Based on these observations, there may be a network port conflict; it is recommended to try disabling the wireless network (WLAN).

 

Feedback:

The device returned to normal after turning off the wireless network (WLAN).

 

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