Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




1677 posts

Uber Geek
+1 received by user: 7

Trusted

Topic # 185375 20-Nov-2015 03:14
Send private message

Can anyone give me a little concrete info on USB type C cables.  It seems there is quite a bit of noise around 'unofficial' cables causing issues.  To the point where there are articles from a Google engineer is saying that you shouldn't be using them.

Is this another 'Monster cables' case, or what is the actual story here?


A Google engineer’s crusade against dangerous USB-C cables has implicated a high-profile offender.  Engineer Benson Leung is telling people to avoid buying OnePlus’ USB Type-C charging cable and adapter, or at least to avoid using them with fast-charging USB-C devices such as the Nexus 5X, Nexus 6P, and Chromebook Pixel. Otherwise, users may damage the charger, hub, or PC to which these devices are connected.  As Leung has explained previously, many USB-C to legacy USB charging cables and adapters are not using a proper resistor value. This can cause charging problems, and in a worst case scenario can cause damage to whatever device is plugged in on the legacy side. For the past couple weeks, Leung has been reviewing cables (both good and bad) on Amazon, prompting a website where users can find compliant and non-compliant products. 


from:  http://www.pcworld.com/article/3005323/computers-accessories/google-engineer-calls-out-oneplus-usb-c-cable-and-adapter-for-damage-risk.html

Want another USB-A to USB-C cable for my 5X, but don't want to ruin my phone.

Create new topic
4936 posts

Uber Geek
+1 received by user: 1314

Trusted
Microsoft

  Reply # 1431508 20-Nov-2015 08:12
Send private message

there are loads of USB2.0 and USB3.0 C-to-A cables are definitely non-compliant.

If you use those cables to connect a USB-C to your PC, you stand the risk of damaging your PC. 

A crude way to tell if your cable is OK: Connect your phone to your PC using the cable, and then open a battery info app on the Phone.
It should say either 500mA if it is a 2.0 cable, or 900mA if it is a 3.x cable. Anything higher, and it’s not compliant.

In Type-C the current level is communicated using new pins on the connector (CC pins), and it is either DefaultUSB, 1.5A, or 3.0A. 1.5A and 3.0A

 

For a C-to-A cable, obviously the new pins don’t exist on one end, so the cable has to advertise to the sink that it can only draw DefaultUSB from the host, because it is obviously going to be a legacy host.

What these cables are doing is they advertise Type-C levels (1.5A in the USB2.0 cable, and 3.0A in the USB3.0 cable, not sure what logic they applied there) instead. So that’s what the Phone tries to draw, because it cannot distinguish between an actual Type-C host on the other end, vs. a legacy host connected through a C-to-A cable.

What happens after that depends on the host: either nothing will happen, or you may see an overcurrent warning, or it may just cut power, or it will get fried. You probably don’t want to find out.

 

 

13164 posts

Uber Geek
+1 received by user: 2191

Trusted
Subscriber

  Reply # 1431516 20-Nov-2015 08:24
Send private message

nathan: A crude way to tell if your cable is OK: Connect your phone to your PC using the cable, and then open a battery info app on the Phone.
It should say either 500mA if it is a 2.0 cable, or 900mA if it is a 3.x cable. Anything higher, and it’s not compliant.


I have multiple cables that report charging my S4 at 1800mah, backed up by timing tests that show when it reports higher numbers it does charge faster. So the cables may not be compliant but they work great for data and charging.




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


 
 
 
 




1677 posts

Uber Geek
+1 received by user: 7

Trusted

  Reply # 1433845 24-Nov-2015 12:01
Send private message

interesting thoughts, and worth keeping that in mind. 

4936 posts

Uber Geek
+1 received by user: 1314

Trusted
Microsoft

  Reply # 1433857 24-Nov-2015 12:09
Send private message

Non compliant cables risk frying your USB host simple as that. I wouldn't go plugging them into a PC I cared about

4649 posts

Uber Geek
+1 received by user: 470

Trusted

  Reply # 1433880 24-Nov-2015 12:34
Send private message

On the Nexus 5X/6P you can use the app CheckR to see if the connected cable is compliant, otherwise Benson has a website reporting compatible and incompatible cables he has tested. As a general rule reputable brands like Belkin seem to be fine, as one might expect.




Twitter: @nztechfreak
Blogs: HeadphoNZ.org


956 posts

Ultimate Geek
+1 received by user: 346
Inactive user


  Reply # 1434021 24-Nov-2015 17:18
Send private message

Just buy any cables he's reviewed as compliant from http://usbccompliant.com/

I
 got my wife the iOrange and one from google, the google one looks like an overpriced monoprice one (the latter being out of stock)

Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Vodafone TV — television in the cloud
Posted 17-Oct-2017 19:29


Nokia 8 review: Classy midrange pure Android phone
Posted 16-Oct-2017 07:27


Why carriers might want to embrace Commerce Commission study, MVNOs
Posted 13-Oct-2017 09:42


Fitbit launches Ionic, its health and fitness smartwatch
Posted 12-Oct-2017 15:52


Xero launches machine learning automation to improve coding accuracy for small businesses
Posted 12-Oct-2017 15:45


Bank of New Zealand uses Intel AI to detect financial crime
Posted 12-Oct-2017 15:39


Sony launches Xperia XZ1, a smartphone with real-time 3D capture
Posted 11-Oct-2017 10:26


Notes on Nokia’s phone comeback
Posted 10-Oct-2017 10:06


Air New Zealand begins Inflight Wi-Fi rollout
Posted 9-Oct-2017 20:16


The latest mobile phones in perspective
Posted 9-Oct-2017 18:34


Review: Acronis True Image 2018 — serious backup
Posted 8-Oct-2017 11:22


Lenovo launches ThinkPad Anniversary Edition 25
Posted 7-Oct-2017 23:16


Less fone, more tech as Vodafone gets brand make-over
Posted 6-Oct-2017 08:16


API Talent Achieves AWS MSP Partner Status
Posted 5-Oct-2017 21:20


Stellar Consulting Group now a Domo Partner
Posted 5-Oct-2017 21:03



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.