Klyde KD-12116 USB not working

[kameleon25]

I purchased a KD-12116 unit from a guy who was the second owner. Neither owner had it for more than 3 weeks. Everything works on the unit except the USB ports. I have tested the cables and the +5v and GND are working but the data lines remain non-functional. The previous owner says they worked when he had the unit. So short of going through Paypal to get my money back I am trying to get USB on this unit working. It has the KD-ZXW-MB main board and is a PX6 64GB storage w/ 4GB ram. I have opened the top cover and see some headers that could possibly be USB but without a schematic it is hard to tell. Does anyone know of maybe a setting that could be turned off or have a schematic of this motherboard that I can find another USB header on?

 

[sun.valeo]

Take a photo of what you have under the lid. We will compare with other models KD.

 

[kameleon25]

Take a photo of what you have under the lid. We will compare with other models KD.

Attached.

 

[kameleon25]

I am hoping that C129 4-pin connector is a USB header and I can find a corresponding plug end easily for it.

 

[sun.valeo]

Attached.

https://forum.xda-developers.com/an...d-units/klyde-kd-1280-tesla-headunit-t3983095 - browse this thread for the information you need.

 

[kameleon25]

https://forum.xda-developers.com/an...d-units/klyde-kd-1280-tesla-headunit-t3983095 - browse this thread for the information you need.

Thank you. I have been through that entire thread at least 3 times and did not see anything but this time I saw the last post on the first page had where someone soldered to C129 and it was USB. I will try to find a plug that matches it and see if I can get it working. Thank you!

 

[sun.valeo]

Thank you. I have been through that entire thread at least 3 times and did not see anything but this time I saw the last post on the first page had where someone soldered to C129 and it was USB. I will try to find a plug that matches it and see if I can get it working. Thank you!

I would recommend that you examine the microcircuit, there are two of them near your specified contact. One of these microcircuits is USB HUB 2.0, maybe the problem is in it. If you yourself do not have sufficient knowledge of checking the performance of microcircuits, then contact a specialist in the workshop. This will be more productive and will save you a lot of problems. Perhaps the microcircuit is OK, but there is a bad soldering of the contacts. And because of this, there is no normal USB operation.

 

[kameleon25]

I would recommend that you examine the microcircuit, there are two of them near your specified contact. One of these microcircuits is USB HUB 2.0, maybe the problem is in it. If you yourself do not have sufficient knowledge of checking the performance of microcircuits, then contact a specialist in the workshop. This will be more productive and will save you a lot of problems. Perhaps the microcircuit is OK, but there is a bad soldering of the contacts. And because of this, there is no normal USB operation.

I am believing this is the issue. I made an adapter to plug in to the motherboard USB header and the same issue presents itself. USB gets power but no data. I am trying to contact KLYDE for warranty information.

 

[sun.valeo]

I am believing this is the issue. I made an adapter to plug in to the motherboard USB header and the same issue presents itself. USB gets power but no data. I am trying to contact KLYDE for warranty information.

I don't think you will be able to solve this problem under warranty. You did not purchase this device from Klyde. If I understood you correctly, you are already the third owner of this device. You will not be able to prove that you bought a radio tape recorder from Klyde, they will easily check it. And, they will not be responsible for the actions for the actions of the previous owners of the radio. And you have already opened the seal on the lid. You should look for a good specialist to understand your problem.