Resolve LAUNCH SmartLink is not recognized as J2534 adapter

 

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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.

Log details attached:

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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() --

if I try to update I get this error:

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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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