Develop Bugs

[Q] dual usb cable to overcome pc usb limitation possible?

Would a dual usb cable work to get a faster charge from a pc or other device that has more than one usb port available?
Something link amazon item number B00439567Q
Typically these are used with hard drives to overcome this limitation, so I'm wondering if it would have the same effect on the Galaxy Nexus.

Link referred to by OP: http://www.amazon.com/StarTech-com-...567Q/ref=sr_1_1?ie=UTF8&qid=1330558360&sr=8-1

Probably not. The nexus isn't really a hard drive, it's more like another computer, and you typically can't connect pc to pc via USB... The limitation is that the sd is actually a virtual sd, and you're actually connecting to the whole OS via USB...
You're better off mounting a stick drive and then using that to transfer files to your PC...

danger-rat said:
Probably not. The nexus isn't really a hard drive, it's more like another computer, and you typically can't connect pc to pc via USB... The limitation is that the sd is actually a virtual sd, and you're actually connecting to the whole OS via USB...
You're better off mounting a stick drive and then using that to transfer files to your PC...
Click to expand...
Click to collapse
Guess you didn't read his post... He's talking about using dual USB for power.
OP, I think it'd work. USB only puts out 500mA, so putting 2 together would improve charging times more like a wall charger that does 1A. No guarantee how the PC would handle it though.
Is your phone not charging from a USB port? Because mine does... Slowly, but it does...

What about USB 3 it has a lot more power.
Sent from my ADR6400L using XDA App

jamesiaustin said:
What about USB 3 it has a lot more power.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
From what I have read usb3 is .8a while a single usb2 is .5a. So .3 more a. Unfortunately I have no usb3 hosts, so that not an option.
Anyway thanks martonikaj, I will change my cables and hopefully get a more timely charge.

Unless you short the data wires on the usb cable or use a kernel that has full usb charging enabled it won't matter how many ports you use. The phone detects the data connection and reduced charging to the slow charge to prevent overloading a pc usb port.
Sent from my Galaxy Nexus using Tapatalk

Maybe flash a kernel that has the USB Fast Charge mod enabled?

Samsung galaxy S3 OTG for USB 3. hard drives

Hi there,
I have a samsung galaxy S3 (rooted) and have recently purchased OTG cable. The problem is that when I connect s3 with Hitachi Touro (mobile USB 3.0) through OTG cable hard drive does appear in files. I have installed paragon NTFS and stickmount apps but it doesn't seem to connect even though a message keeps appearing "usb connector is connected". Hard drive gives a clicking sound when it is connected with S3 but works perfectly with the computer.
Does anyone know solution to this?
Thanks and regards

I've heard of some people having problems when connected to a usb 3.0 port on their computer and have to connect to a 2.0 port instead. Maybe related?
Sent from my SGH-T999 using xda app-developers app

DocHoliday77 said:
I've heard of some people having problems when connected to a usb 3.0 port on their computer and have to connect to a 2.0 port instead. Maybe related?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
USB 3.0 I don't think is supported. What I've seen people do is use a 2.0 cable extension with their 3.0 device. As this downgrades it to 2.0 because they should be compatible with 2.0 just won't have the insane speeds as 3.0. Or you can get a USB hub and plug it in that way.
Sent from my SGH-T999 using Tapatalk 2

Sounds like the Hard Drive is not getting enough power (The clicking), do you have it plugged into an external power supply?
*.*

splatdotsplat said:
Sounds like the Hard Drive is not getting enough power (The clicking), do you have it plugged into an external power supply?
*.*
Click to expand...
Click to collapse
Thanks for all the replies. Hard drive is not connected to power supply as it is portable.

Maazyazdani said:
Thanks for all the replies. Hard drive is not connected to power supply as it is portable.
Click to expand...
Click to collapse
Splatdotsplat is correct. That clicking sound are the heads resetting to the park position. This usually happens when drives are not getting enough power. When the drive spins up it peaks its power consumption and cuts out because there is not enough so the heads reset. Portable or not that is the issue. I have seen this happen with some portable drives on computers (especially larger capacity). A lot of times the solution can be as simple as using a shorter cable. Sometimes it doesn't work.

as stated above, the only way to run external hdd's of any kind is to be sure they're powered, even some thumbdrives will draw more power than the phone can provide and you'll notice your batt life take a steep dive (as did my Galaxy Nexus w/otg on an HP 16gb thumbdrive)
power the drive through a powered hub and you're good to go!

splatdotsplat said:
Sounds like the Hard Drive is not getting enough power (The clicking), do you have it plugged into an external power supply?
*.*
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Click to collapse
This is why i recommended using a USB powered HUB as the HUB will give enough power to the external hard drive.

elesbb said:
This is why i recommended using a USB powered HUB as the HUB will give enough power to the external hard drive.
Click to expand...
Click to collapse
Having the same issue myself, otg cable with Samsung portable 500GB external HDD and stickmount pro works fine with my Nexus 7,but won't work with my Galaxy even though it recognises the HDD, so do you think a USB hub would be the solution, and can anyone recommend one
Thanks

Anyone?
Sent from my Nexus 7 using xda app-developers app

i wish there are people who are willing to investigate/try this thing out, it would be awesome to make a portable hard drive works on our S3..

kemaro30 said:
i wish there are people who are willing to investigate/try this thing out, it would be awesome to make a portable hard drive works on our S3..
Click to expand...
Click to collapse
Just to throw in some info. I do agree about the hdd not getting enough power as the cause for the clicking. I have a 500gb hitachi drive that does that if a long usb cable is used. The drive didn't come with a power adapter but instead came with a short usb cable that had two heads. allowing it to draw power from two ports. It also had a port for an adaptor though.
When testing with my Samsung Galaxy sIII It doesn't work unless I have the hd running via external power or have the second usb connector on the cable connected to a charging usb cable. Both options charge the phone while the hd is connected to the phone.
The usb cable with the double ports actually works well for me. I have the first port connected to the otg cable that I made and the second connection connected to a usb extender that is connected to my 2A tablet charger. That way I can charge at the same time.

esqueue said:
Just to throw in some info. I do agree about the hdd not getting enough power as the cause for the clicking. I have a 500gb hitachi drive that does that if a long usb cable is used. The drive didn't come with a power adapter but instead came with a short usb cable that had two heads. allowing it to draw power from two ports. It also had a port for an adaptor though.
When testing with my Samsung Galaxy sIII It doesn't work unless I have the hd running via external power or have the second usb connector on the cable connected to a charging usb cable. Both options charge the phone while the hd is connected to the phone.
The usb cable with the double ports actually works well for me. I have the first port connected to the otg cable that I made and the second connection connected to a usb extender that is connected to my 2A tablet charger. That way I can charge at the same time.
Click to expand...
Click to collapse
Hi the problem i basically power as in the amount of current your device requires, i know that the standard specifications of the original 2.0 interface is about max 500mA and 5Vdc per port, in some cases the maximum output current is even smaller due to hardware restrictions, this can lead to difficulties when trying to power something like an external hard drive. Therefore a long cable will also give a problem due to the resistance of the material, because the required voltage level is not high enough.
I do not know if there is a spec sheet containing information about the output capabilities of the usb port, if there is one i recommend using that to match an external hard drives, if you do not want to use an external power supply.
Edit: you could also use an external power bank/battery pack but i seems a bit bulky

kemaro30 said:
i wish there are people who are willing to investigate/try this thing out, it would be awesome to make a portable hard drive works on our S3..
Click to expand...
Click to collapse
Sure go out and buy me one and i'll test all day..
USB OTG works out of the box for low power devices. I havent seen/read anything stating USB 3.0 works on the S3. I have a 1TB hard drive my brother gave me, its not the newer ones that are ssd so it has a power adapter with it and it works perfectly with my S3. Going to be using it in a few minutes to back up my internal SD.

So guys I have the GT-I9300 ( Galaxy S3 ) and I have 1 TB WD My Passport
I'm plannig to buy the OTG piece ! so as of now is possible to connect the hardrive to the phone or not yet !?

Is there even a driver and an app to do such a thing? As I see it the USB port is configured as an external storage device to connect to a computer not the other way around. What you are doing is connecting two storage devices together. There's no way I would ever connect anything to my phones USB port that requires power. If I were to, it would be through a powered hub.

Hi Eles
elesbb said:
USB 3.0 I don't think is supported. What I've seen people do is use a 2.0 cable extension with their 3.0 device. As this downgrades it to 2.0 because they should be compatible with 2.0 just won't have the insane speeds as 3.0. Or you can get a USB hub and plug it in that way.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
I have read that you connected your S3 with external powered HDD. I bought yesterday the genuine samsung OTG cable and it is working only with memory stick and joystick controller. Don't know why it is not working with my external powered HDD - 500 GB WD. Any ideea ? My S3 is not rooted.
Thanks,
M.

No, nobody is going to have a recommendation for a powered USB hub.
It's a trivial, generic, piece of kit you buy nearly anywhere for under US$10 (unless you're a complete sucker.) Just make sure whatever you get *includes* a power supply.
Get one in the shape of a person, or a kitty cat, or a Tardis, whatever thrills you.

KurrentUser said:
Is there even a driver and an app to do such a thing? As I see it the USB port is configured as an external storage device to connect to a computer not the other way around. What you are doing is connecting two storage devices together. There's no way I would ever connect anything to my phones USB port that requires power. If I were to, it would be through a powered hub.
Click to expand...
Click to collapse
that's not quite accurate. when you plug your phone into your PC, the drivers that you installed will see your phone as a usb device (or media device) and allow you to use your phone as such
an OTG (on-the-go) cable allows you to connect a storage device to your phone, such as a thumb drive or external hard drive (powered or not) and then your phone acts like your PC and uses that device as storage

elesbb said:
USB 3.0 I don't think is supported. What I've seen people do is use a 2.0 cable extension with their 3.0 device. As this downgrades it to 2.0 because they should be compatible with 2.0 just won't have the insane speeds as 3.0. Or you can get a USB hub and plug it in that way.
Click to expand...
Click to collapse
I can confirm that in my case forcing my ADATA HV610 1 TB disk to USB 2.0 mode worked. The trick is to use a standard micro-USB cable (e.g. the one that comes with your charger) instead of the standard cable that comes with the HDD.
More detail:
The common USB 3 cable which comes with most new HDDs uses USB 3.0 Micro-B plug which, in practice, is a micro-USB with a "half-micro-USB" next to it. The part most people don't know is that you can use a common micro-USB cable (as the one from your charger) to connect your HDD to your PC (or other device) with the cost of loss of USB 3.0 compatibility. Which, in our case, is what we need, as this switch makes the HDD less power-hungry.
Post a comment if it works for other hard drives too (I think WD also use Micro-B connectors for their USB 3.0 Passports)

USB 3.0 not recognized

I have a Verizon LG G3 VS985. I just got it today, whipped the ioroot on there, etc.
So now that Google has decided they hate SD cards I've been having a ***** of a time getting backups going from my SGS3 to the new phone. I finally made a local backup, and then using a PC copied all the local backups to SD. I tried to do it to the LG G3, but when I plug it in to my PC after installing the verizon drivers, it says it will perform better plugging it into a Superspeed USB 3.0 port... and the copy would take 6 hours instead of 3 minutes. The port it is plugged into is one. It works with 2 USB 3.0 drives and my SGS3 as one... why does the G3 not recognize that?

The phone is not actually USB 3.0. The cable might be, but Android phones are known to have issues with USB 3.0 ports.

LG G3's are not USB 3 able because USB 3 cables are designed differently (well, use a different connector) then USB 2.0 spec cables.
You can tell the difference because the USB 3 cables will look more like a cable that plugs into the Note 3, it has an "extra" nub on the connector. It would be impossible to plug a USB 3 connector into a G3 unless in the last two days they have created a new USB 3 cable that only requires a USB MICRO B 2 connector. If they did, please link me because Ive been looking everywhere =)

Koroz said:
LG G3's are not USB 3 able because USB 3 cables are designed differently (well, use a different connector) then USB 2.0 spec cables.
You can tell the difference because the USB 3 cables will look more like a cable that plugs into the Note 3, it has an "extra" nub on the connector. It would be impossible to plug a USB 3 connector into a G3 unless in the last two days they have created a new USB 3 cable that only requires a USB MICRO B 2 connector. If they did, please link me because Ive been looking everywhere =)
Click to expand...
Click to collapse
So how come my galaxy S3 doesn't whine about connecting it to a USB 3 port and I get massively better speed than with the G3?

Quantumrabbit said:
So how come my galaxy S3 doesn't whine about connecting it to a USB 3 port and I get massively better speed than with the G3?
Click to expand...
Click to collapse
It should still ready fine, however, it will only read/write files at the USB 2.0 speed. There should no be any issues, I would try another micro usb cable, and or USB port. Or you could just use a micro sd card and pop all of the files on there from your PC which will probably be faster.

Quantumrabbit said:
So how come my galaxy S3 doesn't whine about connecting it to a USB 3 port and I get massively better speed than with the G3?
Click to expand...
Click to collapse
Because your G3 requires a higher amperage for full charge speed then your gs3.

Pilz said:
It should still ready fine, however, it will only read/write files at the USB 2.0 speed. There should no be any issues, I would try another micro usb cable, and or USB port. Or you could just use a micro sd card and pop all of the files on there from your PC which will probably be faster.
Click to expand...
Click to collapse
I've tried 2 other cables now, and both USB 3.0 ports on this laptop. I'll have to try at work and see if I have USB 3.0 ports there. It's just weird, the same port and cable have no warning with other phones (my rezound and gs3 both didn't whine) or with usb 3.0 flash drives. Just this phone.

Koroz said:
Because your G3 requires a higher amperage for full charge speed then your gs3.
Click to expand...
Click to collapse
I'm not sure how that would affect data transfer speed... Charge speed, sure. Data transfer speed though...
I ended up just popping the files on the internal of the gs3 and copying them to the computer, then to the sd card while in the gs3. Then just put the sd card into the g3, where it read fine.

Quantumrabbit said:
I've tried 2 other cables now, and both USB 3.0 ports on this laptop. I'll have to try at work and see if I have USB 3.0 ports there. It's just weird, the same port and cable have no warning with other phones (my rezound and gs3 both didn't whine) or with usb 3.0 flash drives. Just this phone.
Click to expand...
Click to collapse
I just tested mine with a USB 3.0 port on my PC without any issues. I also tried a USB 2.0, and again no issues. I don't have an answer, it could be your phone, or a setting on it. What mode are you using to transfer files PTP,MTP or the LG PC Suite?

Pilz said:
I just tested mine with a USB 3.0 port on my PC without any issues. I also tried a USB 2.0, and again no issues. I don't have an answer, it could be your phone, or a setting on it. What mode are you using to transfer files PTP,MTP or the LG PC Suite?
Click to expand...
Click to collapse
MTP. But since it's verizon it has a weird default of "connected as installer" which isn't even in the options, then I have to choose MTP.

Quantumrabbit said:
I'm not sure how that would affect data transfer speed... Charge speed, sure. Data transfer speed though...
I ended up just popping the files on the internal of the gs3 and copying them to the computer, then to the sd card while in the gs3. Then just put the sd card into the g3, where it read fine.
Click to expand...
Click to collapse
Because your phone is not usb 3 and requires a 1 amp charger for faster charging speeds. USB 3 VERY RARELY has 1A ports, they are usually between 500-700mA which means when you plug your phone into the computer you aren't getting the full amperage needed to fully charge speed at capacity. Combine those two issues and you get the error you get about plugging the phone into a higher speed port. If you are having problems with transfer speeds being that slow, either your phone, cable or port are borked. Try reinstalling/updating your USB drivers, try new cable or check a different phone with the same USB power requirements if you want to test where the problem is but you will NEVER get USB 3 speeds because you do not have a USB 3 port on your phone, you have USB 2.0 HS

Quantumrabbit said:
MTP. But since it's verizon it has a weird default of "connected as installer" which isn't even in the options, then I have to choose MTP.
Click to expand...
Click to collapse
Have you tried LG's PC suite to transfer files? It works fairly well, I know its not idea, but it may help out.

Koroz said:
Because your phone is not usb 3 and requires a 1 amp charger for faster charging speeds. USB 3 VERY RARELY has 1A ports, they are usually between 500-700mA which means when you plug your phone into the computer you aren't getting the full amperage needed to fully charge speed at capacity. Combine those two issues and you get the error you get about plugging the phone into a higher speed port. If you are having problems with transfer speeds being that slow, either your phone, cable or port are borked. Try reinstalling/updating your USB drivers, try new cable or check a different phone with the same USB power requirements if you want to test where the problem is but you will NEVER get USB 3 speeds because you do not have a USB 3 port on your phone, you have USB 2.0 HS
Click to expand...
Click to collapse
Alrighty... I guess that answers that. very counter-intuitive warning message.

Quantumrabbit said:
Alrighty... I guess that answers that. very counter-intuitive warning message.
Click to expand...
Click to collapse
it is. I agree 100%.

This may sound strange, but if you look at the USB port inside the G3 you can see that it has additional connectors in it, recessed deeper in the socket, either side and on the end of a small plastic tab that goes from top to bottom in a square shape (about 2mm in size). Perhaps these are causing PCs to incorrectly detect a USB3 capable device?

USB 3.0 on LG-G3
I am running CM13 nightly 031316 on an LGG3 D-851. I have a dual ended USB 3.0 thumb drive It has a USB 3.0 standard connection on one end and a micro USB connection on the other end. Reading these posts am I understanding that the LGG3 will not recognize the thumb drive? Or will it not recognize just being connected to a USB port on a PC?
Thanks

What is the Pixel C USB data transfer speed?

Hi,
I was hoping someone could answer this for me as I can't find an answer anywhere.
I was just wondering whether to buy the Google USB C cable that is stated to transfer at USB 2.0 speeds (480Mbps) or whether to buy a faster USB 3.0 (5Gbps) or 3.1 (10Gbps) cable (A to C).
I've found a few compliant USB C cables including a Belkin USB 3.1 A to C cable that transfers at 10Gbps and was hoping to take advantage of the USB 3.1 ports on my new Z170 based motherboard.
Thanks

Rambler76 said:
Hi,
I was hoping someone could answer this for me as I can't find an answer anywhere.
I was just wondering whether to buy the Google USB C cable that is stated to transfer at USB 2.0 speeds (480Mbps) or whether to buy a faster USB 3.0 (5Gbps) or 3.1 (10Gbps) cable (A to C).
I've found a few compliant USB C cables including a Belkin USB 3.1 A to C cable that transfers at 10Gbps and was hoping to take advantage of the USB 3.1 ports on my new Z170 based motherboard.
Thanks
Click to expand...
Click to collapse
I do not believe the port in the Pixel C is USB 3.0. Therefore, it wouldn't be necessary to get a USB 3.1 cable. It should still work, but you wouldn't exceed USB 2.0 speeds, which is probably why Google's cable is only USB 2.0.

Thanks for the response.
Is anyone able to do a quick transfer with a USB 3.0/3.1 based Type C cable to see if it maxes out at USB 2.0 speeds.
It would be much appreciated.

charesa39 said:
I do not believe the port in the Pixel C is USB 3.0. Therefore, it wouldn't be necessary to get a USB 3.1 cable. It should still work, but you wouldn't exceed USB 2.0 speeds, which is probably why Google's cable is only USB 2.0.
Click to expand...
Click to collapse
Most tech sites report the Pixel C has USB 3, but the fastest read speed I can get on a USB-C /3.0 flash drive is 27MB/s which leads me to believe even tech sites are confused and don't understand that USB-C does not automatically mean USB 3.

I think it was confirmed by Benson Leung, in the Reddit AMA, it's full host/client USB c spec so it's full speed port. Maybe another way to test would be to mount a USB 3 drive to pixel and storage benchmark it

I thought that the USB 3.1 host and client related only to the ability to charge the Pixel C as well as the ability to charge other devices from the Pixel C and to use the USB port for other devices such as an ethernet adapter.

beardymcgee said:
I think it was confirmed by Benson Leung, in the Reddit AMA, it's full host/client USB c spec so it's full speed port. Maybe another way to test would be to mount a USB 3 drive to pixel and storage benchmark it
Click to expand...
Click to collapse
That's pretty much what I did. A USB 3 USB-C MicroSD flash drive. On my PC it reads at 80MB+, on the Pixel it is 25MB

I'm a bit confused now.
Recently I read a review by Benson Leung on a USB 2.0 A to C cable here http://www.amazon.com/review/R1AF6ZHBZRQFHV/ref=cm_cr_dp_title?ie=UTF8&ASIN=B018HUOMYE&channel=detail-glance&nodeID=2335752011&store=wireless on Amazon and at the end of the review states:
In conclusion, this is a Good cable for your Nexus 6P/5X to use with all of your older USB Type-A chargers, hubs, and PCs. It also works great with Chromebook Pixel 2015 and will work great on USB Type-C spec compliant devices to come! However, it is NOT a SuperSpeed USB 3.1 5gbps cable. Look elsewhere if you are specifically looking for a 5gbps cable for use with MacBook or Pixel C.
Is this implying that the Pixel C is capable of USB 3.0 speeds, but perhaps not at the moment?
Or is it just a typo as a Superspeed USB 3.1 cable should be capable of 10Gbps and not 5Gbps (USB 3.0).

That is interesting. I'd suspect he'd know what the C is. I however, have never gotten more than USB 2 speeds out of it.

Grims said:
That is interesting. I'd suspect he'd know what the C is. I however, have never gotten more than USB 2 speeds out of it.
Click to expand...
Click to collapse
Just don't think it fully enabled yet same with HDMI out as well

HTC 10 usb 3.0 problems

Hello, I've just purchased HTC 10 from T-mobile in Poland. I installed HTC Sync Manager, but every time I connect the device to usb 3.0 port, my Windows 10 file explorer hangs and I can not use the device (nor can I do it through Sync Manager.) I tried downloading only usb drivers and selecting the option to fix corrupt files, but it didn't help either. Weird thing is, that there is no problem when using usb 2 port. Any ideas on how to fix it?
PS I've never had any problems with using the usb 3.0 port with my LG G3

I had this issue when using None Intel USB 3.0 ports at the front of my PC. Do you have any intel USB 3.0 or USB 3.0 at the back of the PC you could try and see if it works?

According to what I I have read, if you are wanting to activate USB 3 mode in the HTC 10, what they don't tell you is that it is actually USB 3.1, and you must have USB 3.1 ports on your PC to connect to, otherwise it will only connect at USB 2 performance even if you plug it into USB 3 on your PC. You can't enable the USB 3 mode on the HTC 10 unless it senses being connected to a USB 3.1 port. I speculate that is why the cable HTC ships with the HTC 10 is actually a USB 2 cable with a USB C (3.1) connector on it. I was rather disappointed to learn this. I have USB 3 on my PC, but not USB 3.1, so I can't use the USB 3 mode on my HTC 10. My prior Galaxy S5 had a micro USB 3 connector and (before it eventually failed to work) I was able to transfer files an appreciable amount faster via USB 3 between it and my PC.

shankly1985 said:
I had this issue when using None Intel USB 3.0 ports at the front of my PC. Do you have any intel USB 3.0 or USB 3.0 at the back of the PC you could try and see if it works?
Click to expand...
Click to collapse
Exactly as you said, I tried disconnecting usb 3.0 ports at the front (I have zalman z9 u3) and using the ones directly from mobo and it worked. Any idea why is that?

Magic Stick said:
Exactly as you said, I tried disconnecting usb 3.0 ports at the front (I have zalman z9 u3) and using the ones directly from mobo at it worked. Any idea why is that?
Click to expand...
Click to collapse
My best guess is front USB ports don't have enough power to push data to the htc 10
Or the front USB ports none Intel are bugged when using this device.