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Arrow [Q] Differences between OEM non-OEM cables?

OP rogerscorner

19th January 2014, 10:01 PM   |  #1  
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I have bought 2 different (micro) USB 3.0 cables as spares to use away from home, but with these cables I am not getting the option to enable usb 3.0 mode.

The original (OEM) Samsung cable DOES allow USB 3.0 mode, on the same USB port on the PC.

This got me thinking WHY?

I'm wondering if maybe Samsung has done something out-of-spec with their OEM microusb cable to identify it as OEM, like an extra pin being shorted or something...

I've searched and searched and searched but I cannot seem to find any consensus for why non-OEM microusb 3.0b cables are not able to trigger USB 3.0 mode on the note 3.
All transfers only occur in 2.0 mode unless I swap to the OEM cable.


also: I *suspect* that this is also the reason that USB 3.0 OTG cables are not able to function in USB 3.0 mode
See this post concerning USB 3.0 OTG issues:
http://forum.xda-developers.com/show....php?t=2599045


Does anyone have any thoughts or input?
Last edited by rogerscorner; 19th January 2014 at 11:48 PM.
19th January 2014, 10:10 PM   |  #2  
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On top is the OEM cable,

the bottom two are non-OEM cables purchased from ebay. Both non-OEM cables are 3 ft, and build/thickness feels identical to OEM

Quote:
Originally Posted by rogerscorner

I have bought 2 different (micro) USB 3.0 cables as spares to use away from home, but with these cables I am not getting the option to enable usb 3.0 mode.

This got me thinking about WHY?

I'm wondering if maybe Samsung has done something out-of-spec with their OEM microusb cable to identify it as OEM, like an extra pin being shorted or something...

I've searched and searched and searched but I cannot seem to find any consensus for why non-OEM microusb 3.0b cables are not able to trigger USB 3.0 mode on the note 3.

also: I *suspect* that this is also the reason that USB 3.0 OTG cables are not able to function in USB 3.0 mode
See this post concerning USB 3.0 OTG issues:
http://forum.xda-developers.com/show....php?t=2599045


Does anyone have any thoughts or input?

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19th January 2014, 11:43 PM   |  #3  
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http://forum.xda-developers.com/show....php?t=2493645

Here is another user's thread with a similar issue, but no one has tried to identify WHY generic cables arent working.

Can anyone confirm WORKING *USB3.0 mode* using a non-OEM cable?

if so, which one?

Quote:
Originally Posted by rogerscorner

On top is the OEM cable,

the bottom two are non-OEM cables purchased from ebay. Both non-OEM cables are 3 ft, and build/thickness feels identical to OEM

20th January 2014, 11:07 PM   |  #4  
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Im using one of these and it works fine in usb 3 mode http://www.amazon.co.uk/gp/aw/d/B008...5151_M3T1_dp_1

Sent from my GT-I8190N using XDA Premium 4 mobile app
21st January 2014, 06:34 AM   |  #5  
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Thanks for that. I just ordered one. Hopefully it works as it should.

It would still be nice to understand the reason for these other two cables not working like they should.
If anyone has an idea I'd love to hear it!

Quote:
Originally Posted by skibadee

Im using one of these and it works fine in usb 3 mode http://www.amazon.co.uk/gp/aw/d/B008...5151_M3T1_dp_1

Sent from my GT-I8190N using XDA Premium 4 mobile app

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