Hi all.
There has been a lot of confusion on the Type-C port on the Nexus devices, all of the different USB specs, how it all relates to charging using USB Type-C devices, and what kind of data speeds you can get from Type-C devices. I did a fair bit of fact finding, and thought I'd consolidate everything I learned into one topic. For now, this is kind of a "living document" in that I am constantly updating the OP to consolidate knowledge. I'm not going to post everything you could ever know about USB specs here, but have provided the links! I am going to try to keep it focused on items as they relate to the new Nexus phones. As always, if you find this helpful, I'd appreciate the thanks.
I feel the state of USB-C cables and charging devices has been fleshed out well enough, and as such, I'm no longer updating this thread.
News:
Good news for consumers! Amazon bans non-compliant USB Type-C cables.
Resources:
https://plus.google.com/+BensonLeung
Reviewed cables: https://plus.google.com/collection/s0Inv
USB Type C Explained: https://plus.google.com/collection/0Vdov
USB Type C News: https://plus.google.com/collection/EKnov
http://www.usb.org/developers/docs/ (Official specifications.)
http://arstechnica.com/gadgets/2015...clear-up-confusion-about-all-these-usb-specs/
http://www.cnet.com/news/usb-type-c-one-cable-to-connect-them-all/
https://en.wikipedia.org/wiki/USB_Type-C
ACTUAL TESTING: http://www.droid-life.com/2015/10/19/nexus-6p-nexus-5x-quick-charge/
https://play.google.com/store/apps/details?id=com.gombosdev.ampere&hl=en
http://forum.xda-developers.com/showpost.php?p=63614861&postcount=91
What rate will my Nexus charge at with other devices?
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When you connect your Nexus to a host, the devices must negotiate which charging rates can be used.
Type C hosts can negotiate with Type C devices using a specific wire in the cable known as the Configuration Channel - aka, the CC wire.
If you are using a Type-A adaptor or cable, the cable must identify itself as a Legacy USB connection (Type-C being converted to Type-A) using a pull-up resistor on the CC wire, grounded to the vBus wire. This is because the CC pin does not exist on Type-A ports. The Nexus will see the resistor, know it is on a legacy port, and it will then perform power negotiation using the USB BC2.1 protocol on the USB 2.0 wires in the cable. If the host is not BC2.1 capable, it will draw default USB current. (See page 149, table 4-12 for order of precedence.)
USB Type-C ports and chargers will provide 5V at 3A (15W) - true fast charging.
USB Type-A ports and chargers using USB BC2.1 should provide a max of 5V at 1.5A (7.5W).
Standard USB 3.0 can provide 5V @ 0.9A (4.5W)
USB 2.0 defaults to 5V @ 0.5A (2.5W).
What this means is that when your phone negotiates power with the host (your charger or computer), whatever current level they mutually agree upon is what your phone will attempt to draw. If you connect to a USB 2.0 port on your computer, a very old port which does not support the BC 2.1 protocol, then the most you'll be drawing is 0.5A. If you connect to a dedicated charging device which supports BC 2.1, it should draw up to 1.5A. Charging rates depend on this negotiation. Out of specification cables do not allow this negotiation to occur correctly. This may lead to faster charging, but you also risk exceeding the capabilities of your charger which may be dangerous.
As you can see, there is a big difference between 15 watts for Type-C fast charging and 2.5 watts for USB 2. Furthermore, please be aware that the phone will pull less current as the battery charges. A Nexus at 80% battery will pull less current than a Nexus at 20% battery.
In any regard, consider USB Type A to be the weak link in charging your Nexus.
Table 4-12:
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What charger and cable will work with my new Nexus, and will it support fast charging?
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My suggestion would be to make the move to Type-C car and wall chargers. You will eliminate the chance of using out of specification Type-A cables, and ensure you are always fast charging. Type-C will soon be the de facto interface for USB, so why not future proof yourself now.
If you have to use Type-A adaptors and cables, understand that there will be limitations and concerns to be aware of. Out of specification cables being the primary issue, which is explained below. Further, your charging rates will be half (or less) than what Type-C is capable of.
Table 2-1 shows all supported power specs for Type-C charging. Please understand that Type-A ports/cables will only support up to the BC 2.1 charging level of 1.5A. If it goes beyond this, your cable may not be compliant with USB specifications.
Hi. I'm an engineer at Google who has worked on USB Type-C on the Pixel and Nexus projects.
The reason that the Google chargers and cables are capable of 5V 3A support is because not only the cables but the port on the other end is certified for the higher 3A ceiling. You will notice that the cable that came with your Nexus 5X or 6P has USB Type C on both ends.
This ensures that not only the cable, but the connectors and the charging circuitry on the other side of the cable can support 3A before the phone starts to charge.
When you have a legacy cable like this one, the connector on the other side is a USB Type-A connector, which can be plugged into any USB port built since 1997, for example your ancient Pentium II PC may have a USB port that this cable could be plugged into.
NONE of those USB Type-A ports are rated to support 3A, so many of the USB Type-A to Type-C cables available on Amazon that claim they are rated at 3A and configure the identifier resistor to tell the phone to charge at 3A are not in compliance and could do damage to your charger, hub, or PC if you try to charge at 3A.
When you have a legacy cable like this, 2.4A, which is negotiated over a BC1.2 protocol like CDP or DCP, is appropriate over the Type-A connector. Any cable that you buy that claims 3A support I would be extremely wary of plugging into any of your hubs, PCs, or dedicated chargers.
Click to expand...
Click to collapse
By the way, the maximum current of 1.5A is defined by the BC1.2 specification for CDP and DCP, but in practice, a range of other current values are possible using Apple's proprietary protocol or other protocols that bump up the defacto maximum current with a Type A connector on one end up to 2.4A, as long as the charger and the device both support that current limit.
However, keep in mind that there are 3 different termination possibilities. If you have the USB Type-C Specification 1.1, take a look at section 4.11.1, and at Table 4-13.
You'll notice that DFP Advertisement lists "Default USB Power" "1.5A @ 5V" and "3.0A @ 5V". It's important to read note 1. If you are making a legacy USB cable that has Type-C plug on one end, and a Type A plug on the other or a Type-B receptacle, you must use the "Default USB Power" termination, and NOT the "1.5A" one. Default USB power defers to BC 1.2 spec for current negotiation, so that such a cable that is attached to a basic 500mA SDP port should only draw 500mA, for example. Make sure to use a 56 kΩ pullup!
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As referenced in the quote, Table 4-13:
What about QuickCharge 2.0/3.0 chargers!? My Nexus has a Qualcomm chip, isn't it compatible?
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No. Google has stated that it is not implemented in the new Nexus devices.
QuickCharge works by increasing voltage and amperage to charge quickly. The USB Type-C standard only works this way in USB PD modes, otherwise voltage never varies from 5V. This means that QuickCharge 2.0/3.0 is completely different from USB Type-C charging methods.
But my 2.4A rated Type-A charger works, and my phone says it is Fast Charging. What's the deal?
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Your Nexus may report as fast charging if the Type-A cable you use is not compliant with USB specs.
Threads on this forum have confirmed that the phone will pull 3A (or about 2990mA) from the stock charger. These results were verified using apps such as Ampere. When using 3rd party equipment (non-OEM cables and chargers), I would suggest using an application such as Ampere to ensure that you are not exceeding the maximum rating of the charger or cable. Doing so can be dangerous! It will also verify exactly how much current your phone is pulling to charge - information I've found helpful if for no other reason than to satisfy my own curiosity.
If you are unsure if your cable is compliant, you can test it using the methods found here: http://www.androidheadlines.com/201...usb-type-c-for-nexus-5x-6p-compatibility.html
So, how should you approach charging and connecting your Nexus to other devices?
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The same way you would any other device - plug it into the best thing you have available.
For connecting to computers, use the best port you have available. Type-C to Type-C > USB 3.x to Type-C > USB 2 to Type-C.
For chargers, try to match OEM specs: 5 volts at 3 amps output using a Type C connector.
If you have to use an adapter (Type-A to Type-C), Make sure you use compliant cables!
What data connection speeds will I get on my Nexus using Type-C?
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If you want to dig deep into this, look at the "USB Type-C Specification Release 1.1.pdf" doc from USB.org, it defines on page 19 the types of plugs and cables for Type-C, including the USB 2.0 Type-C port. Starting at page 57 it defines all of the wires/pins for the different cables. Comparing table 3-10 to 3-11, you can see that all of the SDP (shielded differential pair) signal pins/wires are missing in the USB 2.0 Type-C connections. These are your high speed data connection wires. The Vbus, Vconn, cc, GND wires are all still present to support Type-C power delivery.
So, in other words, there are USB 2.0 Type-C ports, and USB 3.0 ports. For devices which don't require up to 100 watts of power, or won't use up to 10GB/s transfer speeds, the USB-C 2.0 port may commonly be used. The Nexus 5X & 6P fall into this category. What connection speeds are you going to get with the Nexus? USB 2.0 speeds.
Full Featured USB Type-C Cable:
USB 2.0 Type-C to Type-A cable:
If I left any glaring omissions from this, please follow up. I'd love to have all the info we can get.
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I wanted to put in this addition to the op. Thanks to @aaron_huber for putting this information up.
Aaron said:
A wire is a wire, but in this case the magic is in the charger, the device, AND THE CABLE. From the USB-C Wikipedia page:
Full-featured USB Type-C cables are active, electronically marked cables that contain a chip with an ID function based on the configuration data channel and vendor-defined messages (VDMs) from the USB Power Delivery 2.0 specification. USB Type-C devices also support power currents of 1.5 A and 3.0 A over the 5 V power bus in addition to baseline 900 mA; devices can either negotiate increased USB current through the configuration line, or they can support the full Power Delivery specification using both BMC-coded configuration line and legacy BFSK-coded VBUS line.
The 6P does not support the full PD spec per Google, but it does use the "configuration line" which is an extra wire in the USB-C cable hooked up to an extra pin in the phone/charger to talk to the charger and negotiate extra current. If you don't have a USB-C cable with the extra pins/wires plugged into a USB-C charger on the other end that also has the extra pins to do the negotiation, then the phone will fall back to a lower current because the spec requires it. If you plug it into a USB-A charger or use a USB-A to USB-C cable then all you get are four wires - the "configuration line" to do the negotiation doesn't exist.
========================================
* Type-C capabilities exceeds previous USB Type-A 3.1 / 2.0 specifications:
** 2 way power transfer
** Universal plug type (reversible plug)
** Much high transfer speeds (10GB/s)
** Much higher charging capabilities (Up to [email protected] = 100W via USB PD)
** Alternate data modes for devices (Display port / Audio)
Known Type-C capabilities for Nexus 5x & 6P:
+ USB 2.0 Data transfer speeds
+ Full fast charging through USB Type-C ports or specifically designed 5v/3a capable Type-C chargers only
- Not Qualcomm QuickCharge compatible (may draw more current for charging than a standard USB port though, see below)
- No HDMI out (It is not type-c alternate mode capable.)
- Not USB-PD capable
Thanks all!
Nice post!
Sent from my LG-V410 using Tapatalk
ylexot said:
Nice post!
Sent from my LG-V410 using Tapatalk
Click to expand...
Click to collapse
Thank you!
Are 3.1 Type C cables backward compatible with 2.0 type C devices? I ask because if they are wouldn't it make sense for people to buy USB 3.1 Type C cables for future proofing vs 2.0?
I am in the market for a long cable and am confused as to which of the cables below to chose.
http://www.amazon.com/gp/product/B0...able&qid=1444414379&ref_=sr_1_59&s=pc&sr=1-59
http://www.amazon.com/Cable-Matters...ME5bDiL&dpSrc=sims&preST=_AC_UL160_SR160,160_
toyanucci said:
Are 3.1 Type C cables backward compatible with 2.0 type C devices? I ask because if they are wouldn't it make sense for people to buy USB 3.1 Type C cables for future proofing vs 2.0?
I am in the market for a long cable and am confused as to which of the cables below to chose.
http://www.amazon.com/gp/product/B0...able&qid=1444414379&ref_=sr_1_59&s=pc&sr=1-59
http://www.amazon.com/Cable-Matters...ME5bDiL&dpSrc=sims&preST=_AC_UL160_SR160,160_
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Click to collapse
USB type c is just the physical connector it has nothing to do with the usb 2.0 or 3.0 so you might as well by the fastest ones
What we do need to worry about is whether or not the cable itself supports charging at 3A 5v
Looking at the two, it appears that the Cable Matters product is a cable designed to connect a computer with Type-C port to a peripherals with USB 2.0 Type-C ports. (Like the Nexus 6p.) The maximum data speeds for this would be USB 2.0 speeds. Looks like a very nicely constructed cable - look at the connection ends, and polished metal. If all you were doing is connecting smart phones to your laptop, this is the type of product I would buy.
The J&D cable appears to be a full-feature type-c cable, and should support every supported type-c data rate. I'm not in love with the picture of the product though. Doesn't look quite as nice as the Cable Matters product. If you wanted to connect two devices with full 10GB/s connectivity, this would be the type of cable I would get.
It is my opinion that the two products are good examples of a well made USB 2.0 Type-C cable and a cheaply made full-feature Type-C cable. The full feature cables have to include more pins/wires, and are thus more expensive to produce.
Chilidog said:
USB type c is just the physical connector it has nothing to do with the usb 2.0 or 3.0 so you might as well by the fastest ones
What we do need to worry about is whether or not the cable itself supports charging at 3A 5v
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Technically incorrect, but essentially right.
Assuming both cables adhere to standards, the Cable Matters USB 2.0 Type-C cable is (most likely) missing the data pins & wires needed to transfer at the rated Type-C 10GB/s speeds; however, it should still have all of the power pins and wires to charge at 5V 3A. The J&D cable, presumably being a full-feature cable, should support full Type-C power (100W) and data (10GB/s) speeds, and will also charge a Nexus at 5V 3A.
Elnrik said:
Technically incorrect, but essentially right.
Assuming both cables adhere to standards, the Cable Matters USB 2.0 Type-C cable is (most likely) missing the data pins & wires needed to transfer at the rated Type-C 10GB/s speeds; however, it should still have all of the power pins and wires to charge at 5A 3A. The J&D cable, presumably being a full-feature cable, should support full Type-C power (100W) and data (10GB/s) speeds, and will also charge a Nexus at 5V 3A.
Click to expand...
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So for just charging it would make sense to get the better constructed cable based on your observations?
At this point, it's more about the cable you use than the charger. Using a backwards 3.0/3.1 compatible C to A cable will get you the same speeds as a standard C to C cable in USB use. The chargers coming standard with the phone are C to charger, so Google seems to be indicating separate charging and USB use here. However, compatible untethered chargers are available in both the Google stores and elsewhere. Just make sure if you're not buying the Google charger, you get one with the right specs.
kibmikey1 said:
At this point, it's more about the cable you use than the charger. Using a backwards 3.0/3.1 compatible C to A cable will get you the same speeds as a standard C to C cable in USB use. The chargers coming standard with the phone are C to charger, so Google seems to be indicating separate charging and USB use here. However, compatible untethered chargers are available in both the Google stores and elsewhere. Just make sure if you're not buying the Google charger, you get one with the right specs.
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Yh, I;m still waiting for charging bricks with the correct specs but would just get the 6.6 ft cable from now.
Elnrik said:
Worst case would be it sends 12V at 3A (36W) to your phone and your Nexus dies in a exploding lithium maelstrom of fiery chaos.
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Leave it to Android to steal more features from the iPhone....
Elnrik said:
snip
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So, if I read your post correctly, (very good post btw), if I were to buy a charger for work, I should try to find a USB-c to USB-c cable (5V/3A), and a USB-c wall plug, because the USB-c standard is what gets you the 15W? Using a USB-c to USB-a cable, even if it was rated for 3A, would max out at 10W?
Sent from my SM-G900V using Tapatalk
kibmikey1 said:
At this point, it's more about the cable you use than the charger.
Click to expand...
Click to collapse
This is a bit misleading, and while I see what your point is, I urge caution using such general statements. A one amp charger with a Type-A port, a computer's USB 2 port, a USB 3.1 port, and a Type-C port connected to Type-C adaptors will all produce different charging rates for attached USB Type-C devices.
toyanucci said:
So for just charging it would make sense to get the better constructed cable based on your observations?
Click to expand...
Click to collapse
I'm the type who thinks it's better to get the better constructed everything. So I'd look for a "USB 3.1" compatible C to C cable that was built well.
Elnrik said:
This is a bit misleading, and while I see what your point is, I urge caution using such general statements. A one amp charger with a Type-A port, a computer's USB 2 port, a USB 3.1 port, and a Type-C port connected to Type-C adaptors will all produce different charging rates for attached USB Type-C devices.
Click to expand...
Click to collapse
True, but I was talking about USB transfer speeds, not USB charging speeds, since Google seems to be indicating separate charging and USB connectivity use with these phones, as evidenced by them including separate chargers and cables with them. Actually, only the 6P has both, the 5X only has the tethered charger.
heleos said:
So, if I read your post correctly, (very good post btw), if I were to buy a charger for work, I should try to find a USB-c to USB-c cable (5V/3A), and a USB-c wall plug, because the USB-c standard is what gets you the 15W? Using a USB-c to USB-a cable, even if it was rated for 3A, would max out at 10W?
Sent from my SM-G900V using Tapatalk
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Yes, exactly.
Edit: According to what I've read, anyway. There might be something about 3.1 Type A ports that I'm not aware of which will allow 15W power. I know the 3.1 Type A port has extra pins. Just haven't been able to find in the 3.1 spec sheet a 100% absolutely for sure explanation either way. The Type-C specs pretty clearly spell out power states though, so I'm going to continue going by that. See attachment.
Second Edit: No, it would max out at 15 watts. The current I in amps (A) is equal to the power P in watts (W) divided by the voltage V in volts (V):
I = P / V.
3.0 Amps = 15 Watts / 5 Volts.
Or just buy a hard wired type-c charger like the one on the play store.
https://store.google.com/product/usb_c_charger
It won't power 100w, but I'm sure someone makes one that will.
Elnrik said:
Or just buy a hard wired type-c charger like the one on the play store.
https://store.google.com/product/usb_c_charger
It won't power 100w, but I'm sure someone makes one that will.
Click to expand...
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It's currently sold out. They also have a 60W version with a 12' cable but it's $59.
Ouch that's a bit pricey!
heleos said:
So, if I read your post correctly, (very good post btw), if I were to buy a charger for work, I should try to find a USB-c to USB-c cable (5V/3A), and a USB-c wall plug, because the USB-c standard is what gets you the 15W? Using a USB-c to USB-a cable, even if it was rated for 3A, would max out at 10W?
Sent from my SM-G900V using Tapatalk
Click to expand...
Click to collapse
Why not just get the 15W charger Google sells?
---------- Post added at 09:48 PM ---------- Previous post was at 09:47 PM ----------
seezar said:
It's currently sold out. They also have a 60W version with a 12' cable but it's $59.
Click to expand...
Click to collapse
Ooh man.. Good thing I loaded two of them into my pre-order. Almost everything I pre-ordered is sold out.
*VERIFIED* & *TRUSTED* List of (USB-A to USB-C) cables and (USB-C to USB-C) Cables
I'm creating thread in a Q/A style so that y'all can contribute to the list.
The answers which earn the highest votes will become the most elevated answer... (hopefully that means this is the most trusted USB cable)
I am very bothered by the LIES we have been sold, specifically, buying USB cables which advertise USB Type-C Specifications, and then it turns out they are not USB Type-C Specifications.
Look at this review by Google Software Engineer, telling us about these Fake USB Type-C cables that many of us have purchased.
http://www.amazon.com/review/R1189CCK1UXGT5/ref=cm_cr_rdp_perm
Let us post trustworthy, verified, USB-C cables so that we know which ones are SAFE to buy...
Here are some recommended cables by Benson Leung himself (the first 7 listed here), Including other Trusted cables in list below:
1) http://www.monoprice.com/pages/usb_31_type_c
2) http://www.amazon.com/gp/product/B010VFFU1W/ref=cm_cd_asin_lnk
3) http://www.amazon.com/FRiEQ-Hi-speed-USB-Type-Cable/dp/B010EXRTXI/
4) http://www.amazon.com/Belkin-Chromebook-MacBook-Compatible-Devices/dp/B00WJSPFOW/
5) http://www.amazon.com/dp/B0119EIHTG/
6) http://www.amazon.com/Nekteck-Charging-Reversible-MacBook-OnePlus/dp/B00VIWE1ZY/
7) http://www.amazon.com/USB-Type-cable-USB-C-USB3-0/dp/B0162ISBEU
8) https://store.google.com/product/usb_type_c_to_usb_standard_a_plug_cable
9) https://store.google.com/product/usb_c_usb_c
WARNING: Just because your USB cable charges your Nexus 6P, and the lock screen says 'Charging Rapidly', does NOT mean that the USB cable is configured to USB Type-C Specifications... This thread is only for verified or trusted sources from where we can buy USB Type-C Cables
Special Thanks to @xur17 for creating this website http://usbccompliant.com/
Please upvote, any other trusted, verified cables posted by commentators in this thread!
Apparently, even the One+ cables, despite being from a 1st party phone maker, even those are NOT using the correct USB Type-C configurations !!!!
as mentioned here: http://forum.xda-developers.com/showthread.php?p=63653584#post63653584
@slickromeo
One+ cables are deliberately not following USB Type-C standards.
(As far as I'm aware) they are configured to work optimally with One+ products.
I have multimeter. Where exactly would one test to see if the resistor used in 56 kΩ?
I'd imagine one would have to cut open the connector and visually verify the existence of the resistor. I think there would be too much variables involved to just connect the multimeter to a couple of pins, but I could be wrong.
EDIT: NVM
Benson Leung1:30 PM
+Eric Hawkins Unfortunately since USB Type-C is such a new standard, at this point you sort of need some specialized equipment. I've been using this, which is publicly available on Amazon as well : https://www.chromium.org/chromium-os/twinkie
If you have a Chromebook Pixel 2015 in dev mode, there's some simple terminal commands I can share that can verify if a cable is good or bad.
I'm going to work on seeing if there's anything I can do on the Android side as well, maybe a battery charging statistics app.
Click to expand...
Click to collapse
If you discover a method to verifying these cables ourselves, which is easy enough for the average user, please let us know !
I'm confused on the One Plus cables - they say they are 2A cables on their website, not 3A. So if they are only pulling 2A and im using 1.8A blackberry charger, how is that harmful to my phone? I guess in other words, how can I still use the One Plus cable with a charger safely?
I have these cables http://www.amazon.com/gp/product/B01...cm_cd_asin_lnk and I did not get the charging rapidy . Not sure if these work I will try again tonight or tomorrow. These cable worked fine http://smile.amazon.com/gp/product/B0119DC9O6?psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00 with this charger http://smile.amazon.com/gp/product/B0122P71FC?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00
Hey guys I'm in the process of setting up a store specific to Type-C products (type-c.io - not up yet). I'm in talks with supplies from Asia about getting the correct cables and was wondering what would you guys pay for cables shipped from North America?
@xray49er when you say you got the cable listed at http://www.amazon.com/gp/product/B010VFFU1W/ref=cm_cd_asin_lnk and it did not rapid charge your Nexus 6P, where you using the stock charger included with your Nexus 6P ?
@xray49er
Edit #2, I Purchased a 5V/3A car charger that only charged at 1.7amps (false advertising), are you certain that the charger you purchased is truly 5V/3A? test multiple cables, together with the GSam Battery Monitor app to see how many amps its charging
@slickromeo No because this is a usb A to C cable so I used a fast charging chrager that was 5v/3a. https://smile.amazon.com/gp/product/B0122P71FC/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1
All the cables in question are designed like the OnePlus USB-C cables, Basically if your using a device that doesn't charge at 3A you have nothing to worry about
Anyone tried the cable matters ones?
They have a usb 3 to usb type c cable
http://www.amazon.co.uk/Cable-Matte...=8-6&keywords=cable+matters+usb+3.0+to+type+c
Hi guys, I'm looking at these cables.
It has a data sheet, is it possible to tell by this whether its in spec?
Everyone, once again, remember that there's NO WAY to tell if the USB A-C cable is compliant by just plugging it in.
It's pretty complex.
The Google Engineer wrote how to do it: https://plus.google.com/+BensonLeung/posts/jGP5249NppF
I bought these:
http://www.amazon.com/gp/product/B00S8GU544?psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s01
I have no issues with them...And the guy from Google didn't review them. They also seem to be on the "compatibility list", based on the description of the item at least.
I've been playing around with the Android App Ampere - I'm wondering if it might be possible to identify bad cables based on the charging rate - based on this post, they should be 2A, not 3A. If you compare the power usage before and during charging, you can deduce the charging rate.
On another note - I'm putting together a database of usb-c compliant cables here to help people find compliant usb cables. I'm primarily focusing on usb-a to usb-c cables as that's where the biggest issues appear to exist. Right now the listings are based on Benson's reviews, but I'm planning to expand it to include additional cables once I find an accurate way to test cables.
I bought these awhile back:
http://www.amazon.com/gp/product/B0118NUJIK?psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00
http://www.amazon.com/gp/product/B00S8GU544?psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s00
Would like to know how to test this without a Pixel...
You got your links messed up. FRiEQ links to Belin and vice versa.
It lists "USB Fast Charging @ 5V 3A" in the description, so it's unlikely to pass by Benson Leung's assertions that cables that list 3 amp charging speed typically don't adhere to the spec.
I'm honestly not sure where to post this so please lmk if this is the wrong place.
Short: I bought 6 cables from two companies (4 cables from Syncwire and 2 from Paracable) and all 6 cables do not charge my phone and have PC connection issues.
Long: My phone is a Sony Xperia XZ1, I'm using the default charger (Sony UCH20W), and the cables I bought were this Syncwire cable and this Paracable cables. All 6 cables shared the same issues and I'm not sure why. When I use my Sony charger, the cable does not charge my phone. I tested this with my Dad's Huawei Mate 20 Pro as well and no charge was detected. However, it should be noted that non Quick Charge chargers do work. The cables work with my Anker power bank, my old htc standard charger, as well as an Apple 12W charger. The other issue is with PC connection. If I plug my phone into any PC, it will charge the phone, but that's it. For my PC specifically, it will detect my phone as a device, however, the second I try to move a file, it will either instantly disconnect and then reconnect (after Windows cancels the file transfer), or the file transfer is very slow and eventually fails. I tried this with my Dad's computer and this other spare computer and both of those computers failed to even recognize my phone as a device. The same goes for the Huawei, can't transfer files on my PC and fails to be detected as a device with the other two PCs.
Why is this exactly happening? Does it have something to do with the fact that those 6 cables use a 56k ohm pull-up resistor? I feel like that doesn't make any sense, but at the same time, I have 2 other USB c cables that do work. The stock Sony cable and this other syncwire cable (USB 3, did not advertise to include a 56k ohm resistor). I've emailed Syncwire and Paracable, and both responded with the cables are made to USB C 3.0 spec and that they should work. I find it hard to believe that I got 6 DOA cables. Any ideas is appreciated. Thanks!
dwang040 said:
I'm honestly not sure where to post this so please lmk if this is the wrong place.
Short: I bought 6 cables from two companies (4 cables from Syncwire and 2 from Paracable) and all 6 cables do not charge my phone and have PC connection issues.
Long: My phone is a Sony Xperia XZ1, I'm using the default charger (Sony UCH20W), and the cables I bought were this Syncwire cable and this Paracable cables. All 6 cables shared the same issues and I'm not sure why. When I use my Sony charger, the cable does not charge my phone. I tested this with my Dad's Huawei Mate 20 Pro as well and no charge was detected. However, it should be noted that non Quick Charge chargers do work. The cables work with my Anker power bank, my old htc standard charger, as well as an Apple 12W charger. The other issue is with PC connection. If I plug my phone into any PC, it will charge the phone, but that's it. For my PC specifically, it will detect my phone as a device, however, the second I try to move a file, it will either instantly disconnect and then reconnect (after Windows cancels the file transfer), or the file transfer is very slow and eventually fails. I tried this with my Dad's computer and this other spare computer and both of those computers failed to even recognize my phone as a device. The same goes for the Huawei, can't transfer files on my PC and fails to be detected as a device with the other two PCs.
Why is this exactly happening? Does it have something to do with the fact that those 6 cables use a 56k ohm pull-up resistor? I feel like that doesn't make any sense, but at the same time, I have 2 other USB c cables that do work. The stock Sony cable and this other syncwire cable (USB 3, did not advertise to include a 56k ohm resistor). I've emailed Syncwire and Paracable, and both responded with the cables are made to USB C 3.0 spec and that they should work. I find it hard to believe that I got 6 DOA cables. Any ideas is appreciated. Thanks!
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Have you checked to see if those cables have the same pinout order as the cables that do work? Also, some cables have fewer pins than others, such as cables meant for digital cameras.
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Droidriven said:
Have you checked to see if those cables have the same pinout order as the cables that do work? Also, some cables have fewer pins than others, such as cables meant for digital cameras.
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I don't have a pinout diagram for any of these cables so I can't confirm 100%, however, for both the USB A and C side, they look identical in terms of pins and design. I do have links to the cables above and the syncwire one specifically advertises that it's for phones quote "supports Sony Xperia XZ/XZ premium/XZ1/XA1/X Compact and other USB C devices" and all the other USB C features like "supports currents up to 3a and transfer speeds up to 5 Gbps." Judging by the description and user reviews, I feel like it's safe to say that it supposedly supports Quick Charge and file transfers. The paracable site doesn't say it explicitly, however, email support, they said that the cables "are made to USB-C specifications." Again, the paracable support their 18W Dual QuickCharger so I would assume this would at least work with a Quick Charge 3 charger. Their USB C to USB C 3.1 states that it can "Charge up to 60W (20V/3A)" and "Transfer speeds of up to 5gbps," I don't see any other differences other than the connector and my cable being USB 3.0 vs 3.1, so again, I would assume this cable supports file transfers.
dwang040 said:
I don't have a pinout diagram for any of these cables so I can't confirm 100%, however, for both the USB A and C side, they look identical in terms of pins and design. I do have links to the cables above and the syncwire one specifically advertises that it's for phones quote "supports Sony Xperia XZ/XZ premium/XZ1/XA1/X Compact and other USB C devices" and all the other USB C features like "supports currents up to 3a and transfer speeds up to 5 Gbps." Judging by the description and user reviews, I feel like it's safe to say that it supposedly supports Quick Charge and file transfers. The paracable site doesn't say it explicitly, however, email support, they said that the cables "are made to USB-C specifications." Again, the paracable support their 18W Dual QuickCharger so I would assume this would at least work with a Quick Charge 3 charger. Their USB C to USB C 3.1 states that it can "Charge up to 60W (20V/3A)" and "Transfer speeds of up to 5gbps," I don't see any other differences other than the connector and my cable being USB 3.0 vs 3.1, so again, I would assume this cable supports file transfers.
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Click to collapse
What I was asking is a matter of which wires are connected to which pins inside the cables.
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Droidriven said:
What I was asking is a matter of which wires are connected to which pins inside the cables.
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I guess there's no real way of telling unless if I take the cable apart (which wouldn't work as I will most likely need to return and refund it).