# OBDLink LX Bluetooth Connection Reliability

**URL:** <https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640>\
**Category:** Adapters (CAN/LIN)\
**Created:** [February 20, 2025, 12:31pm UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640 "2025-02-20T12:31:23Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![mmain](https://forum.realdash.net/user_avatar/forum.realdash.net/mmain/32/651_2.png) [@mmain](https://forum.realdash.net/u/mmain)\
**Post date:** [February 20, 2025, 12:31pm UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/1 "2025-02-20T12:31:23Z")

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Hi is anyone using the OBDLINK LX reliably in RealDash CAN mode over Bluetooth. I am using this with my Samsung S8 which I had previously used with MeatPi and Vlink OBD adapters for years without any problems. Now I am trying to use this adapter for CAN and it just seems to drop the connection repeatedly with nothing to indicate the likely cause. I have disabled all the wakeup and sleep parameters using the config software and the problem persists. Any ideas or experience most welcome

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [February 21, 2025, 6:58am UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/2 "2025-02-21T06:58:19Z")

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Send a debug log:

[How to send a debug log - General / Frequently Asked Questions - RealDash Forum](https://forum.realdash.net/t/how-to-send-a-debug-log/949)

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [February 21, 2025, 8:55am UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/3 "2025-02-21T08:55:41Z")

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Got the log, unfortunately it does not show any other reason for reconnecting than timeout- meaning that data stops coming in.

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**Author:** ![Kaelub](https://forum.realdash.net/user_avatar/forum.realdash.net/kaelub/32/1659_2.png) [@Kaelub](https://forum.realdash.net/u/Kaelub)\
**Post date:** [February 24, 2025, 5:31pm UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/4 "2025-02-24T17:31:10Z")

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one reason might be it being accessed by a different device. Make sure nothing else is paired to it.

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**Author:** ![mmain](https://forum.realdash.net/user_avatar/forum.realdash.net/mmain/32/651_2.png) [@mmain](https://forum.realdash.net/u/mmain)\
**Post date:** [February 26, 2025, 2:56am UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/5 "2025-02-26T02:56:38Z")

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Thanks for the suggestion, but likelihood is low as I have no other devices in the vicinity, and I have renamed the device using the OBDLink utility and re-flashed the firmware even though it was already current, and the problem persists

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**Author:** ![xj8](https://forum.realdash.net/user_avatar/forum.realdash.net/xj8/32/2001_2.png) [@xj8](https://forum.realdash.net/u/xj8)\
**Post date:** [March 1, 2025, 10:15pm UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/6 "2025-03-01T22:15:24Z")

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Im have one and used it some days ,the devas obdlink lx not stability in contacts same time lost  
the connection . Now i used obdlink cx and v link

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**Author:** ![Henri.be](https://forum.realdash.net/user_avatar/forum.realdash.net/henri.be/32/1844_2.png) [@Henri.be](https://forum.realdash.net/u/Henri.be)\
**Post date:** [May 14, 2026, 3:39pm UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/7 "2026-05-14T15:39:15Z")

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Hello  
I’m having the same recurring disconnection issue with my OBDLink LX dongle. Have you found a solution?  
Henri

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**Author:** ![Lilgarage](https://forum.realdash.net/letter_avatar_proxy/v4/letter/l/35a633/32.png) [@Lilgarage](https://forum.realdash.net/u/Lilgarage)\
**Post date:** [May 20, 2026, 11:57pm UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/8 "2026-05-20T23:57:39Z")

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Hi  
I use both the LX and MX models.

In terms of OBD2 communication (11-bit/29-bit CAN), the LX doesn’t seem stable, whereas the MX is stable.

I initialized the LX using the following procedure and tried manually sending a command via OBD2MONITOR to see if it could transmit a custom CAN message.

Initialization works fine, but when sending CAN (ATSH18DA3AF1), it returns a CAN error.

I checked with another device to see if the CAN was actually being output to the bus, but it wasn’t being sent.

I tried the same code on the MX, and it was able to send CAN reliably.

I suspect this is not an error with RealDash-OBDLink, but rather an internal error with the OBDLink LX.

init code

ATD  
ATZ  
ATE0  
ATL0  
ATS0  
ATSP7  
ATH0  
ATAL  
ATSH18DA3AF1

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [May 25, 2026, 11:51am UTC](https://forum.realdash.net/t/obdlink-lx-bluetooth-connection-reliability/7640/9 "2026-05-25T11:51:26Z")

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It could be that LX has some limited CAN functionality over MX. Not sure though.
