Hello,
Has anyone had trouble with connecting to the TCU . There is an error for
Unknown usb device ( device descriptor request failed ) . I have download the usb driver provided by Lamik but still no connection
Unable to connect to TCU
Re: Unable to connect to TCU
I have literally had the same issue yesterday. It was the cable, worked perfect first time with a different cable
Re: Unable to connect to TCU
Thank you ,this was the case( bad cable )
Re: Unable to connect to TCU
They must have a batch of bad cables then as I’m having the same issue with a brand new tcu
Re: Unable to connect to TCU
Yes, that's right, unfortunately there was one defective batch of cables.Syco wrote: 06 Feb 2023, 22:12 They must have a batch of bad cables then as I’m having the same issue with a brand new tcu
The cables were of poor quality and do not work.
If you need to connect quickly and you can't get a working cable this is a quick way, you need to remove a piece of isolation from the wire and connect the black wire to the external shield, then the cable will work.
Re: Unable to connect to TCU
Tried to do that, now cable works with any other device like openport, but still not work with tcu, not recognized usb device. Heh, its very hard to find another 90 degree mini usb. Straight connector not fit because of space in electronics box 

@E60 525d LCI stage3 turbosystems + 8hp75 RWD turbolamik
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Re: Unable to connect to TCU
I’m still stuck on this topic.
Have tried different cables - still the same issue - no hardware found.
Brand new TCU unit - on Tunerpro RT on Win11 64bit.
No matter what I do or change - still having the same result.
Have tried different cables - still the same issue - no hardware found.
Brand new TCU unit - on Tunerpro RT on Win11 64bit.
No matter what I do or change - still having the same result.