Hi
What is the maximum length can an OTG cable have?
if I make an OTG cable with a length of 1-2 meters, will it work? ,
the load is just a flash drive .
Thank you.
The length of the cable which you can create is only limited by your resources and by the ability for the electricity to go through it. Therefore, you could make a 2 mile otg cable if you knew how. So to answer your question, if you can make one yea it will work.
Thulfiqar92 said:
Hi
What is the maximum length can an OTG cable have?
if I make an OTG cable with a length of 1-2 meters, will it work? ,
the load is just a flash drive .
Thank you.
Click to expand...
Click to collapse
There already exists a wonderful awesome cable - check this out http://www.amazon.com/Aukey-6-6Ft-P...&redirect=true&ref_=oh_aui_detailpage_o00_s00
Matthew M. said:
The length of the cable which you can create is only limited by your resources and by the ability for the electricity to go through it. Therefore, you could make a 2 mile otg cable if you knew how. So to answer your question, if you can make one yea it will work.
Click to expand...
Click to collapse
today I made an OTG Cable (1 meter ), I attached it to my LG G3 but it was not recognized by the phone, I used the multimeter to check if there was any voltage coming out of the Red and black wires but there was 0 voltage?
is there something I should do in the Software of the G3 to enable OTG cables ?
Thulfiqar92 said:
today I made an OTG Cable (1 meter ), I attached it to my LG G3 but it was not recognized by the phone, I used the multimeter to check if there was any voltage coming out of the Red and black wires but there was 0 voltage?
is there something I should do in the Software of the G3 to enable OTG cables ?
Click to expand...
Click to collapse
No clue, this is a gs4 forum. The most likely problem if there was no voltage would be something wrong with the wires.
Sent from my SCH-I545 using XDA-Developers mobile app
Matthew M. said:
No clue, this is a gs4 forum. The most likely problem if there was no voltage would be something wrong with the wires.
Sent from my SCH-I545 using XDA-Developers mobile app
Click to expand...
Click to collapse
ok, So in your Galaxy S4 the OTG function is enabled out of the box (Plug n play) ?
yes, it is.
I think... I don't remember how stock is now LOL
Thulfiqar92 said:
ok, So in your Galaxy S4 the OTG function is enabled out of the box (Plug n play) ?
Click to expand...
Click to collapse
Yes, using the stock sammy ROM it worked with no extra software or messing about (probably with other roms too).
However, in the sammy rom UMS (usb storage when connected to PC) didn't work how I wanted it to, so I migrated to a CM rom where UMS will work.
However with CM, usb OTG needed a little "help", and I had to use chainfires Stickmount app to re-enable it, but having to option to use both (albeit with an enabler-app) is better than only one or the other.
Please i ve an OTG cable ba my s4 verizon hyperdrive ROM does nt recognize it. Pls help me awt
Joshsel said:
Please i ve an OTG cable ba my s4 verizon hyperdrive ROM does nt recognize it. Pls help me awt
Click to expand...
Click to collapse
I'm not familiar with the Verizon variant, but a quick search brought me to the XDA thread for Hyperdrive KK RLS21, and apparently it's pre-rooted, yes?
That being the case, I would try using either Stickmount, by Chainfire, or perhaps USB OTG Helper.
(I note one reviewer of USB OTG helper actually states that it only worked for him when he used both apps in conjunction, but doesn't state his specs so we can't make any real judgements there)
As root-only apps, when you try them, be sure that you grant them superuser permissions (you should also see a little notification of this after every reboot also).
Finally, be careful careful careful about letting the OTG cable disconnect, or fall out of the USB port of your phone... The device will see this as it being disconnected without unmounting, and it does not like this, not one little bit...
I've had a right hell of a time getting OTG to work on my device lately, so I don't speak from technical knowledge, only end-user experience, but once you get it working, be really careful to go into storage settings, and manually "unmount USB storage" every time you want to remove the OTG cable.
Hope some of this helps dude...
Thanks everyone, I got it to work, the 2 meter cable was faulty , The max length I managed to get is 1 meter, I didn't try any longer cables
Is there a limit to how many USB devices can be used at once?
For example: If I used a USB hub, would two controllers and a thumb drive all be recognized and work all at the same time?
Tommy807 said:
Is there a limit to how many USB devices can be used at once?
For example: If I used a USB hub, would two controllers and a thumb drive all be recognized and work all at the same time?
Click to expand...
Click to collapse
In theory it *should* work, I've seen examples of it being used like that before but I'm fairly positive it would need to be a powered hub...?
I have a cheap, non-powered 4-way USB hub, when I get home from work tonight I'll try it out with multiple USB devices and let you know.
This forum discussion seems to indicate using multiple USB devices could work, assuming your ROM supports OTG...
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Pic of multiple devices being used at once - different Sammy phone but proof of concept
Game Controllers? I'm guessing you're thinking about storing games on the pen-drive and then using the controllers on your phone to make a gaming device?
I'd be very - very - interested to hear how you fair with that!
I know that some games, like San Andreas support joypads on android right out of the box, whereas others might want you to use a joypad/controller app such as USB/BT Joystick Center Gold (sorry, can't find a link to that right now).
As i said, I'd love to hear how you get on as it's something that interests me also - promise to come back & report what you find?
My purpose was to run two XBox 360 controllers via the USB hub via the OTG cable along with the thumb drive for a console game emulator. One might ask why not just try it, but I'm lacking some components currently.
Tommy807 said:
My purpose was to run two XBox 360 controllers via the USB hub via the OTG cable along with the thumb drive for a console game emulator. One might ask why not just try it, but I'm lacking some components currently.
Click to expand...
Click to collapse
Ok, that's annoying!
So I tried my device (rooted S4 i9505 using CM12.1, running Chainfire's Stickmount app to get OTG working).
Used my un-powered USB hub, with both a 32gb USB pend drive, and a microsoft USB mouse at the same time.
Each device (mouse and drive) works fine when directly connected via OTG.
However, hook them both up via the USB hub, and no dice.
If both devices are attached to the phone using the un-powered USB hub, then only the mouse is recognised - the USB pen drive is not recognised. Stickmount detects zero active mounts.
In addition, I had some strange behaviour from the phone when both devices are hooked up..
Loooong boot times, Novalauncher not wanting to draw to the screen, and to top it off, the phone no longer recognises my SD Card...
I don't actually have a powered USB hub to test with, so I can't really go any further for you on that score right now Tommy.
My initial "suspicion" is that you'll need a powered hub if more than one device is going to be used at a time.
I do happen to have two PS2 joypads, plus a joypad-to-USB adapter (so I can play emulator games on my PC)...
.... so later tonight I'll try hooking up 2x Jopypads>Adapter>OTG Cable>Phone & see if they can be detected.
BigJim.T32 said:
no dice
Click to expand...
Click to collapse
Thanks for taking the time.
@BigJim.T32
By the way, you seem to think power is the issue, I doubt it. If anything, the phone battery would die quickly, but devices should be recognized. More than one device should be recognized. In fact, the phone is lost and doesn't know what to do with all things connected (as you've said). That sounds like OTG limitations to me. OTG was never designed to run so many things at once is my guess.
OTG functionality was probably just a nice afterthought feature to allow one small connection. Anyway, what do I know? I'm just guessing based on your tests and statements. That doesn't mean that's the way it's going to always be, but that's probably the way it's going to always be with the GS4.
Tommy807 said:
@BigJim.T32
By the way, you seem to think power is the issue, I doubt it. If anything, the phone battery would die quickly, but devices should be recognized. More than one device should be recognized. In fact, the phone is lost and doesn't know what to do with all things connected (as you've said). That sounds like OTG limitations to me. OTG was never designed to run so many things at once is my guess.
Click to expand...
Click to collapse
I would have imagined you're correct; And you seem to hit the nail on the head with your analysis - when both devices were connected to the phone via OTG, the mouse took priority, over both the regular SD Card and the mounted USB pen drive, leaving the phone unable to detect either of the two storage options. Came as a surprise when I connected both deices to the phone, checked CM's file manager and couldn't even see my micro SD card in the list, even after a reboot...
The reason I initially suspected that a powered USB hub would be the next place to try (and I hasten to add it's only a suspicion, I have no experimental experience to go on) is only because I've seen photos of other, older Sammy phones simultaneously using both a mouse and USB drive connected via OTG on other sites/forums... And I figured, if they can do it, we *should* be able to do it too! :laugh:
Sorry, I've not had chance to test with my cheap-ass playstation 2 joypad adapter yet (been at the GF's all weekend - boo!) but I promise I'll test it soon as I can and report back here; hell, I want to know for my own benefit too.
Thulfiqar92 said:
Hi
What is the maximum length can an OTG cable have?
if I make an OTG cable with a length of 1-2 meters, will it work? ,
the load is just a flash drive .
Thank you.
Click to expand...
Click to collapse
Maximum length of USB 2.0 cable:
USB 2.0 Connectors (Plugs)
The 2.0 specification limits the length of a cable between USB 2.0 devices (Full Speed or Hi-Speed) to 5 meters (or about 16 feet and 5 inches). In other words, you cannot just connect a bunch of extension cables together (like taking a 6 foot cord and extending it with 4 other 6 foot extension cords) and run them 30 feet to another room. However, you can connect a 6 foot cable with a 10 foot extension cable for a total of 16 feet, which is below the maximum cable length for USB 2.0.
Back to Top
Maximum length of USB 3.0 / USB 3.1 cable:
USB 3.0 Connectors (Plugs)
The 3.0/3.1 specification does not specify a maximum cable length between USB 3.0/3.1 devices (SuperSpeed or SuperSpeed+), but there is a recommended length of 3 meters (or about 9 feet and 10 inches). However, the biggest limitation to the length of the cable is the quality of the cable. Results may vary, but with a high quality cable you should be able to go beyond 3 meters. However, to ensure you achieve the best results possible, use an active cable when going more than 10 feet (3 meters).
I got this from some website - Google is your friend! :good:
Related
= DIY usb hub for HTC =
== Warning ==
First of all, your using this manual at your own risk, I don't take any responsebilety for your actions.
If you make a mistake you risk blowing up your phone usb port, or even burning out the phone completly.
I have a background in electronics and was age 12 when I did my first hardware mod on a computer.
I knew the risc I was taking when I started this mod, an I accepted it.
The included pictures are just for reference, do not use them as a guide, your board will be different.
If you happen to use the same usb hub, then also use the same connection points.
== Introduction ==
Unlike the Y cable this mod leaves all usb ports available, but it renders the usb hub useless for normal use.
It's gone be purely for use on HTC phones which DO NOT supply power to the usb port, check your phone before you start building.
== The parts ==
For this project we need the following parts.
* 4 port usb hub (this may be a active/powered hub, but those mostly have a to weak powersupply).
* micro usb cable.
* powersupply of 5V and at least 2000mA.
* half a liter of fresh coffee or energy drink.
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== Power ==
A standard usb port of a computer supply's 5V with 500mA, so for a 4 port usb hub we need 4x the current, making the 2000mA.
But as the phone also needs at least 500mA, we need a bit more power, totaling 2500mA, alltho there is some wiggleroom here.
A keyboard/mouse hardly ever need the full 500mA, so we can steal a bit from that.
The powersupply i used gives out 2250mA, and using the above wiggleroom it leaves about 700mA for the phone.
== The internals of the hub ==
When we open the usb hub were gone find something like the next picture.
This is my finished hub so ignore the black and red wires for now.
Look for the green and white cables and imagine the red wire above them and the black under them.
The green and white cables are the data cables.
Cut of the standard usb plug from the micro usb cable, and connect the green and white cables to the same points as the original cable from the hub.
If your hub has a connector instead of a cable, the white cable goes beside the red wire (positive), the green beside the black (negative).
This is visible on the pictures.
If you have any doubt, then skip to the next step and come back after it.
Once you have figured out the powerlines this step will become clear.
== Finding the power lines ==
Originaly the usb cable powers the controller and sends the left over power to the ports, making the hub able to power low power devices like keyboards and mice.
This is why we have the wiggle room on the power supply.
So first we have to locate the power lines on the board as outlined on the next picture.
Red is the positive path, blue the negative path.
Look for the negative path first and you'll find the positive in no time.
An easy trick is to start look at the usb ports.
You'll see that 1 of the 4 pins is connected to the ground of the port, thats the negative pin/track.
the oposite pin of the 4 is the positive (the data pins are the 2 middle pins).
== The power protection ==
Now if you look carefully you can see 2 gaps in the positive path (red collor), those are there because of the protection needed when pluging in the external powersupply.
And the fact that the controller gets power from 2 locations.
They are located in the yellow circles on the next picture.
== Bypasing the power protection ==
But as the phone doesn't supply any power on the usb port, in fact it needs power, were gone have to bypase (easier then removing it) the protection.
This is fairly easy, just connect the points which normaly go to the usb cable which connects the computer to the points of the external powersupply.
The connector on my hub is located right beside the protection diode on the right side of the board.
== Rerouting the power to the phone ==
Next step is to give the phone power in the same way.
To make it easier I used 1 of the usb ports for this.
Safes the hassle to connect 2 cables to the small connection points.
== Putting the hub back together ==
Now we can put the hub back into it's casing.
== The finished project ==
And we end up with a special usb hub for our phone.
Like it was bought this way.
reserved for the battery pack project.
space for rent. lol
FaQ
Known devices to work which do not supply power to the usb port.
-------------------------------------------------------------------------------------------------
HD2
Known devices to work which do supply power to the usb port (you need to skip the power bypase to the phone on these devices).
-------------------------------------------------------------------------------------------------
this list will most likely contain tablets.
Known devices which do not work at all.
-------------------------------------------------------------------------------------------------
Q: I can not find the power path or protection on my hub.
A: Post a high detail closeup of the print of the hub so we can help and draw the path on the photo for you, like in the manual.
But consider the fact that you are getting into a very risky situation, we could be wrong due to a bad picture and you could interpret the photo we draw in a bad way.
I highly recomment that you get help from someone more skilled.
Q: My phone does supply power to the usb port.
A: Do not attach the power cables from the phone usb to the hub, leave it all to the external powersupply.
But remember to tape/isolate the cables to avoid shortings.
Q: I really want to have a hub like this but i'm not capable of building 1.
A: as i got only 4 requests by pm the demand seems to be very little.
but feel free to try and convince me by pm, but pls make it at least 5 hub's.
plopper
Thx for the idea and the detailed information.
Just bought a hub today and will try it within the next days.
But one question:
Is it neccessary to change the powercables to the phone?
I'm not sure, but wouldn't it work only with the 'bypass protection' wires?
With this bypass the old connection points are on the same power level as the new ones? Do I miss something?
regards and thx again
mf_1
mf_1 said:
Thx for the idea and the detailed information.
Just bought a hub today and will try it within the next days.
But one question:
Is it neccessary to change the powercables to the phone?
I'm not sure, but wouldn't it work only with the 'bypass protection' wires?
With this bypass the old connection points are on the same power level as the new ones? Do I miss something?
regards and thx again
mf_1
Click to expand...
Click to collapse
the protection bypase is indeed enough, but that forces you to stick 2 cables to the small connection points of the original usb cable.
the connections on the usb port are free and mostly they don't even cut off the leads, so you end up with more surface area, resulting in a stronger connection.
on my hub the usb ports are actualy holding the print on it's place, and by using the same length on all the leads (data and power) from the usb cable, and using the usb ports to connect the power makes it less likely that some jerking on the cable breaks/damages the print, also since i picked the 1 which was furthest away.
doesn't change anything on the workings but it's a safer idea.
good luck and have fun building.
plopper
Works great.
I've bought a very small hub and it wasn't easy to find the connection point (only needed the +5V connection), but thx to your description everything works fine.
With ubuntu it was plug & play, now I'm trying WM and android.
regards
mf_1
mf_1 said:
Works great.
I've bought a very small hub and it wasn't easy to find the connection point (only needed the +5V connection), but thx to your description everything works fine.
With ubuntu it was plug & play, now I'm trying WM and android.
regards
mf_1
Click to expand...
Click to collapse
updated the manual a bit, inserted a trick to find them quicker.
on android you might have to enable the usb host mode in the kernel (like ubuntu's usb_host kernel).
not sure tho, pls inform me if this is true.
we tested it on a android tablet in a shop and that worked out of the box.
plopper
To make it a little easier: gnd should be the same on both +5 areas, so you only need to make 1 connection.
My Hub is a LogiLink USB 2.0 4 Port HUB (UA0003), a very small hub with a 2,0A Power Supply (in Germany available at Conrad electronics for 10€).
Your hint regarding Androids seems to be right, unfortunaly I'm not able to activate it by myself. Maybe one of the developers will built a version sometimes.
Do you have drivers for WM 6.5?
I used Zenos driver without success so far.
Regards
mf_1
mf_1 said:
To make it a little easier: gnd should be the same on both +5 areas, so you only need to make 1 connection.
My Hub is a LogiLink USB 2.0 4 Port HUB (UA0003), a very small hub with a 2,0A Power Supply (in Germany available at Conrad electronics for 10€).
Your hint regarding Androids seems to be right, unfortunaly I'm not able to activate it by myself. Maybe one of the developers will built a version sometimes.
Do you have drivers for WM 6.5?
I used Zenos driver without success so far.
Regards
mf_1
Click to expand...
Click to collapse
based on our use of the hub you are indeed right, both gnd's should be the same and can be made with 1 connection.
but if the gnd's in both area's are connected by default, then you found a very bad hub.
connection the psu wrongly on a hub like that can have very bad results, smoke out of the computer.
but for our mod. they are perfect, safes a bit of work.
i haven't found any working wince drivers so far.
i'll contact some of the android cooks if they are willing to help with a test.
plopper
Technical opinion on hub choice
Can I use hub like in picture ? have one lying around doing nothing.
No external power supply on hub, but could buy 2.25A power adaptor & wire it to power tracks.
Could use standard built in usb lead with micro USB adaptor plug ?
Want to keep size & weight to minimum as travel a lot.
Could this replace standard HTC charger(1 less plug to carry) or is full charging via a 2A+ power adapter risky !
Mister B said:
Can I use hub like in picture ? have one lying around doing nothing.
No external power supply on hub, but could buy 2.25A power adaptor & wire it to power tracks.
Could use standard built in usb lead with micro USB adaptor plug ?
Want to keep size & weight to minimum as travel a lot.
Could this replace standard HTC charger(1 less plug to carry) or is full charging via a 2A+ power adapter risky !
Click to expand...
Click to collapse
any hub can be used, just some need more or less modifications then others (due to bad design).
to be sure i would need a high resolution picture of the board.
the hd2 has multiple charging mode's.
the standard htc charger is 1 amp, but this doesn't mean it always pushed out that 1 amp.
it can deliver up to 1 amp, the same goes for the external psu you mentioned, just now we have a max of 2.25 amps..
if you worry i suggest you try and keep a close eye on the temperature of the battery.
above 60 celcius the risk of it exploding appears.
personaly i didn't feel a difference in heat on charging on 1 or 2 amps.
another option would be to drain the extra power by hooking up something like an external hdd, those need 1 amp (0.5 amps per usb port, 2 are used on these devices).
plopper
thanks for reply.
What constitutes as bad design for our intended modification ?
Is it not more simple to wire a non external powered hub as it will have no diode circiut to bridge, I'm thinking would only need to tap into power line for external 2A supply & with a micro USB adaptor on original recoil lead it would fit & feed HD2 correctly.
Will strip hub tomorrow if got time, is my rough summary sounding practical from your experience ?
Mister B said:
thanks for reply.
What constitutes as bad design for our intended modification ?
Is it not more simple to wire a non external powered hub as it will have no diode circiut to bridge, I'm thinking would only need to tap into power line for external 2A supply & with a micro USB adaptor on original recoil lead it would fit & feed HD2 correctly.
Will strip hub tomorrow if got time, is my rough summary sounding practical from your experience ?
Click to expand...
Click to collapse
with our intended modification the world turns around.
the best designed hub becomes the worst.
every protection they add, we have to cancel out.
i had the same idea like you, get a non powered hub and connect a psu to it.
but when i unpacked it the power socket appeared.
i wouldn't be surprised if you found the socket painted on the top side of the print and the diodes replaced for bridges.
means less work, hookup 1 random usb port to the psu, replace the plug and done.
plopper
hey this is a great idea, but unfortunately for the electrically illiterate it's a bit over our heads. i'd really like to tackle this but im going to have to learn some of the basics first. is there any chance that someone who has made one of these could upload a tutorial vid on youtube? im sure im not the only would who would appreciate it.
non soldered way?
I have bought a 4 way USB hub which has a usb socket on its input lead. This can be plugged into your PC or into a usb mains charger or usb car charger.
If the input lead is plugged into one of the four output sockets and the lead is cut open and the red and black wires are exposed, a 2A 5v charger can be connected to these wires by twisting together and taping.
This then powers both sides of the hub with 2A supply and by-passes the protection.
It does sacrifice 1 output socket but HD2 +keyboard+mouse= happy Ubuntu
Will this work?
Edit; I have posted a Thread in HD2 Ubuntu Q&A http://forum.xda-developers.com/showthread.php?t=1130905 to try for more feedback.
If it does work then thanks should go to Plopper for his hard work in this and on other Fora. (And apologies for any lost business!)
DOH!
I must have read this thread quite a few times, but I have only just understood what plopper and Mister B were saying in their last posts.
There is no protection in unpowered usb hubs, so no need to bypass it!
I have checked this and it works.
No wonder there have been no replies!
Robbie P said:
I have bought a 4 way USB hub which has a usb socket on its input lead. This can be plugged into your PC or into a usb mains charger or usb car charger.
If the input lead is plugged into one of the four output sockets and the lead is cut open and the red and black wires are exposed, a 2A 5v charger can be connected to these wires by twisting together and taping.
This then powers both sides of the hub with 2A supply and by-passes the protection.
It does sacrifice 1 output socket but HD2 +keyboard+mouse= happy Ubuntu
Will this work?
Edit; I have posted a Thread in HD2 Ubuntu Q&A http://forum.xda-developers.com/showthread.php?t=1130905 to try for more feedback.
If it does work then thanks should go to Plopper for his hard work in this and on other Fora. (And apologies for any lost business!)
Click to expand...
Click to collapse
what you made here is a Y cable.
but i advise that you do solder the wires, this to avoid problems due to the bad contacts.
problems like sparks can do nasty things to any electrical device.
apologies accepted gracefully.
so far 4 have requested a hub, and 1 of those managed to build 1 himself.
thats not enough sadly.
beside that i'm working about 60 hours per week on average, so not much spare time left.
plopper
Thanks Plopper,
you may get more business now that DFT and Cotulla have released USB host for WM6.5
Good to see you back
powered hub for nexus 12v source
Can I pay you to make me a 4 port hub that uses a 12 volt source? I'm working on an auto project integrating a a nexus 7 into my car stereo
plopper said:
Known devices to work which do not supply power to the usb port.
------------------------------------------------ -------------------------------------------------
HD2
Known devices to work which do supply power to the usb port (you need to skip the power bypase to the phone on these devices).
-------------------------------------------------------------------------------------------------
this list will most likely contain tablets.
Known devices which do not work at all.
-------------------------------------------------------------------------------------------------
Q: I can not find the power path or protection on my hub.
A: Post a high detail closeup of the print of the hub so we can help and draw the path on the photo for you, like in the manual.
But consider the fact that you are getting into a very risky situation, we could be wrong due to a bad picture and you could interpret the photo we draw in a bad way.
I highly recomment that you get help from someone more skilled.
Q: My phone does supply power to the usb port.
A: Do not attach the power cables from the phone usb to the hub, leave it all to the external powersupply.
But remember to tape/isolate the cables to avoid shortings.
Q: I really want to have a hub like this but i'm not capable of building 1.
A: If there is enough demand i'll build a stack of them.
I have no idea how to handle the posting/shipping of this, so if you can help me on this, then don't hesitate to send me a pm.
For now i still won't build any untill i have it all figured out.
Check back here in a couple day's for more info.
Q: When are you gone start building them?
A: Send me a pm where you request for a hub, and I'll inform you on the details.
plopper
Click to expand...
Click to collapse
cms3717 said:
Can I pay you to make me a 4 port hub that uses a 12 volt source? I'm working on an auto project integrating a a nexus 7 into my car stereo
Click to expand...
Click to collapse
Do it as described in the thread but use the internal power adaptor board of a quality 2A plus rated 12v cigarette to usb charge adaptor to power the hub.
For the "old" Atrix 4G, there is a thread regarding USB Host, without a dock.
http://forum.xda-developers.com/showthread.php?t=997187
Can the same be done with the Atrix 2 (buying the USB hub and the OTG adapter)? I assume getting WebTop app requires rooting? Can the USB OTG still be used without rooting?
If not using WebTop app, is there any advantage going this route, versus just using a bluetooth keyboard/mouse ? Maybe just so that I can copy files to a disk key?
I'm just envisioning using something like this while visiting a relative or staying at a hotel - hooking the phone up to a TV, to be able to do things.
Thanks
Yes, it works on the atrix 2. I've gotten usb mass storage, keyboards and mice to work. All before the root was available.
The only problem I have with it is minecraft pocket edition doesn't support remapping the input to keyboard+mouse.
Oh- also I had to shave a little plastic off the side of the OTG adapter for the HDMI cable to fit at the same time.
I would suggest going the bluetooth route unless you need usb mass storage or usb ethernet.
The mess of wires can get pretty bad...
Hmmm... I need help here.
I have this set up:
- Micro USB On-The-Go Host OTG Adapter
- The USB male split into two cables: power ( 5v + GND) and data (d+, d- , GND)
It's fully functional, on my Touchpad running CM9 and WebOS. But doesn't work on my atrix 2.
What the thread on the OP is suggesting is you have to put the 5v on the data cable too ?
-------------------
yeah, just did it. It works and still charges the cellphone! \o/
When I tested it, I used a hub. Thankfully the hub's included cable has a third lead coming off with only 5v and ground connected, so it was a perfect match.
I've spliced up a cable to test the way you have it. Unfortunately, even with 5v+gnd hotwired, I haven't been able to get it to work without a hub between the usb otg adapter and the usb device.
This suggests that Motorola only really wants you to use usb host mode with the official lapdock or docking station, etc.
Strange... The modified cable worked fine to me.
an usb keyboard worked with the cable and even an unmodified usb hub.
So you have a hub with a second cable only for power? Do you have a link ?
RogerThis said:
Strange... The modified cable worked fine to me.
an usb keyboard worked with the cable and even an unmodified usb hub.
So you have a hub with a second cable only for power? Do you have a link ?
Click to expand...
Click to collapse
Just tried it and you're right about the keyboard. It works when connected directly.
Till this point I had only been trying USB storage and mice.
This kinda makes me think this is just a software deficiency that could be worked around.
As far as the hub goes, it's just a 4 dollar hub I found at goodwill.
After a little research, I found out what it is but it's discontinued of course. Any usb hub should work, the trick is the Y cable.
The hub linked to on dealextreme in that Atrix thread is wired in a way analogous to this.
Can you guys explain a bit more about these modified cables and the Y adapter cable? Like, exactly what cables do I need, and what modifications need to be done.
Thanks!
moofree said:
Just tried it and you're right about the keyboard. It works when connected directly.
Till this point I had only been trying USB storage and mice.
This kinda makes me think this is just a software deficiency that could be worked around.
As far as the hub goes, it's just a 4 dollar hub I found at goodwill.
After a little research, I found out what it is but it's discontinued of course. Any usb hub should work, the trick is the Y cable.
The hub linked to on dealextreme in that Atrix thread is wired in a way analogous to this.
Click to expand...
Click to collapse
Man!, I use this site a lot and never saw this hub! Thanks!
The self made Y cable is fine, I just want a better solution without semi-naked wires hanging around. =)
extide said:
Can you guys explain a bit more about these modified cables and the Y adapter cable? Like, exactly what cables do I need, and what modifications need to be done.
Thanks!
Click to expand...
Click to collapse
To the Atrix act as a host all you need is that OTG adapter metioned earlier. But, mobile devices don't provide power to "guest" devices. So, you need to power the usb device with a external source.
You have 2 options:
- Self powered HUB. Actually that's not enough. You'll need to power the USB pin 1 on the cable connected to the atrix to active the Host mode. That's why that hack (wire soldered) on the atrix 1 thread.
- The Y cable. As I described before is a normal USB cable powered by other USB cable. Ex: http://www.amazon.com/Apricorn-Power-Adapter-Cable-AUSB-Y/dp/B000JIOHDE
On our scenario, one will provide the data communication and the other the power. So, the data cable you will connect to the atrix and the other to a PC or the atrix charger.
I hope I made myself clear in a not so bad english.
If you buy a Y cable, you'll only need the OTG adapter ( http://dx.com/micro-usb-on-the-go-host-otg-adapter-pair-50774 ) and any usb hub.
If you want to make the cable, only 2 USB cables.
If you want to modify an USB hub. Just any hub and a cable.
I'm modifying an USB hub, I'll post pictues and I get home.
Rechargeable battery powered usb hub with otg cable
I was able to make myself a battery powered usb hub with an otg micro end on the cable and its rechargeable. All for $10
Using the USB host adapter and a y splitter, which I power via USB to AC adapter I can use a keyboard / mouse. I am unable, though to access a USB memory stick or the like. Looking at the Atrix 4G forums of people who did similarly - pre the latest firmware, the Atrix 4G needed to use manually mounting - which I assume needs root. But, the latest Atrix 4G automounts. But, I have a Atrix 2 with the latest firmware... and no automounting. Any ideas?
Thanks
I have the Micro USB OTG Adapter ( product B005N55WHI on amazon ) + the Y cable ( product B003HHK576 on Amazon ).
I put on the red plug of the Y cable a portable USB battery (phone detects it and is charging).
On the end of the Y cable I have my camera.
When I check with USB Hostdiagnostic it detects the USB device (my camera) but not the app I want to use it with. The USB host diag shows that at Android API Claims support and Classes found is NO and Device detected is N/A .
What am I missing?
Update:
USB Mouse and keyboard works.
atrix2 - pendrive auto mount
dzr said:
Using the USB host adapter and a y splitter, which I power via USB to AC adapter I can use a keyboard / mouse. I am unable, though to access a USB memory stick or the like. Looking at the Atrix 4G forums of people who did similarly - pre the latest firmware, the Atrix 4G needed to use manually mounting - which I assume needs root. But, the latest Atrix 4G automounts. But, I have a Atrix 2 with the latest firmware... and no automounting. Any ideas?
Thanks
Click to expand...
Click to collapse
Like above, I too have same issue with Atrix2(pendrive not getting detected / mounting), whereas mouse & keyboard work fine. can anybody help.
You need to use a usb hub between the splitter cable and the usb drive.
pendrive works
moofree said:
You need to use a usb hub between the splitter cable and the usb drive.
Click to expand...
Click to collapse
Hi.................
It works, thanks a lot......
Hope same logic works for connecting USB printer as well .
I didn't have a female to female adapter. But I found an ancient internal USB hub that works just fine!
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in fact, I am posting this through the ATRIX 2, typing this with keyboard!!
EDIT:
Anyway to get USB controller to work?? the generic dual-shock II clone.
i have drawn a simple diagram using paint which i have understood by reading through out this thread,
is it correct?
and i have spotted a question in the diagram which asking for a Y splitter. is this is the one which called Y splitter or something else?
thanks
EDIT
and for the records is this OTG cable will work this atrix 2?
sachi9121 said:
i have drawn a simple diagram using paint which i have understood by reading through out this thread,
is it correct?
and i have spotted a question in the diagram which asking for a Y splitter. is this is the one which called Y splitter or something else?
thanks
EDIT
and for the records is this OTG cable will work this atrix 2?
Click to expand...
Click to collapse
That cable is right. but diagram is not.
Here see this...
dzr said:
Using the USB host adapter and a y splitter, which I power via USB to AC adapter I can use a keyboard / mouse. I am unable, though to access a USB memory stick or the like. Looking at the Atrix 4G forums of people who did similarly - pre the latest firmware, the Atrix 4G needed to use manually mounting - which I assume needs root. But, the latest Atrix 4G automounts. But, I have a Atrix 2 with the latest firmware... and no automounting. Any ideas?
Thanks
Click to expand...
Click to collapse
i am using atrix 2 i did it and its automatically mounding the flash drive and mouse ,i don't have a usb keyboard so i didnt tried that, but flash drive is mounding automatic i am using stock ICS.
monichutti said:
i am using atrix 2 i did it and its automatically mounding the flash drive and mouse ,i don't have a usb keyboard so i didnt tried that, but flash drive is mounding automatic i am using stock ICS.
Click to expand...
Click to collapse
Yes. It auto-mounts for me too.
NHS2008 said:
That cable is right. but diagram is not.
Here see this...
Click to expand...
Click to collapse
oh i see..thanks for the clarification..i will try it as soon as i got the OTG & Y split cable..just now ordered!! :good:
Update October 28,2012:
h8rift figured out how to enable full OTG support with 5V power, no need for y-cable anymore!
You need to use a modified kernel for self powered OTG. Stock kernel has OTG but needs a y-cable connected to 5V power source, as explained below.
To enable powered OTG, you will need to use one of the following:
CM10 Nightly builds: http://forum.xda-developers.com/showthread.php?t=1790032
King Kang ROM: http://forum.xda-developers.com/showthread.php?t=1959099
rohan.kernel: http://forum.xda-developers.com/showthread.php?t=1892108
For Sense ROMs: http://forum.xda-developers.com/showthread.php?t=1967897
______________________________________________
To use OTG with stock kernel:
Here's what you need:
-an OTG cable
-a USB Y-cable
-a usb perhipheral (eg: mouse, keyboard, thumb drive, etc)
The key to this working is 5V on the uplink to the phone. Most usb hubs do not supply 5V on the uplink! This is why I suggest a Y-cable.
1. connect the perhipheral device to the Y-cable
2. connect the y-cable to the AC power adapter that came with your phone
3. connect the other end of the y-cable to an OTG cable
4. connect the OTG cable to your One X
Here's a screenshot showing the mouse pointer:
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"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
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"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Notes:
-the OTG cable automatically sets the USB controller to host mode
-usb-hid seems to be built into the kernel, no modules need to be loaded
-usb storage works, but has to be mounted manually
-tested on stock kernel and scrosler's cleankernel
Cool. Kinda sucks that you need a separate 5v source.
^^yeah, there's not much you can do about that. I'm pretty sure there's no way the phone can supply the power.
Also, I can confirm usb storage works.
I attached a thumb drive and manually mounted it:
mkdir /mnt/usb
mount -t vfat /dev/block/sda1 /mnt/usb
Where did you get that clock?
Sent from my HTC One X using xda premium
flar2 said:
^^yeah, there's not much you can do about that. I'm pretty sure there's no way the phone can supply the power.
Also, I can confirm usb storage works.
I attached a thumb drive and manually mounted it:
mkdir /mnt/usb
mount -t vfat /dev/block/sda1 /mnt/usb
Click to expand...
Click to collapse
Any OTG cable is fine?
Sent from my HTC One X using xda premium
abhipati said:
Any OTG cable is fine?
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Any proper OTG cable (I got mine for like $3 on ebay). In an OTG cable, pin 4 on the micro usb side is grounded. This is how the device automatically senses that it should enter host mode.
nightrainbow said:
Where did you get that clock?
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Are you being serious? (It came with the phone)
But it has a brushed aluminum theme, no? So it's not stock.
Sent from my HTC One XL using Tapatalk 2
The Galaxy S II supplies power for USB host with a OTG cable ... stock
This is like the way you have to do it with a TouchPad, who carries around a portable USB power supply? If HTC wasn't going to give a MicroSD slot, you would think USB OTG would be officially supported.
Sent from my HTC One X
Does the phone at least charge in this mode so its somewhat useful?
ECEXCURSION said:
But it has a brushed aluminum theme, no? So it's not stock.
Sent from my HTC One XL using Tapatalk 2
Click to expand...
Click to collapse
Yeah, it's stock, part of the Aluminum theme.
Sent from my HTC One X using XDA Premium HD. In between Force Clo...
Vendetta-NY said:
Yeah, it's stock, part of the Aluminum theme.
Sent from my HTC One X using XDA Premium HD. In between Force Clo...
Click to expand...
Click to collapse
Oh.. didn't realise there was such a thing.
It doesn't charge while in host mode, but I think that function might be enabled with a little kernel hacking.
I'm not familiar with the hardware yet, I just got this phone a few days ago. The USB controller is likely part of the soc. There would be a phy between the main chip and the USB port. The phy is where voltages would be controlled. There are many different phy's available, each has different capabilities.
flar2 said:
It doesn't charge while in host mode, but I think that function might be enabled with a little kernel hacking.
I'm not familiar with the hardware yet, I just got this phone a few days ago. The USB controller is likely part of the soc. There would be a phy between the main chip and the USB port. The phy is where voltages would be controlled. There are many different phy's available, each has different capabilities.
Click to expand...
Click to collapse
can you please be more clear in your explanation as i don't understand
saketh91 said:
can you please be more clear in your explanation as i don't understand
Click to expand...
Click to collapse
I'm saying that the usb phy, which is a physical chip that controls the micro usb port, might be able to be programmed to allow charging while in otg mode by modifying code in the kernel. But I don't know enough about the phone's hardware.
I think, but don't know for sure, that there is a signal in the usb cable that tells the phone whether it's connected to a normal usb port or an AC adapter. The phone will draw a small current if it's connected to a computer usb port and a larger current (to charge quicker) if it's connected to the wall charger. Perhaps there is a resistor or short between D+ and D- lines? I don't know, more research is required. If anyone knows, feel free to contribute here.
What I do know is that when you connect the otg cable, a pop up comes up saying charging is disabled.
The at&t S3 supports USB OTG w/o external power. Plugged in a mouse, it worked. Keyboard same thing. Plugged in SD card reader, S3 mounted the card and file browser opened. It was pretty cool.
FreddieP said:
The at&t S3 supports USB OTG w/o external power. Plugged in a mouse, it worked. Keyboard same thing. Plugged in SD card reader, S3 mounted the card and file browser opened. It was pretty cool.
Click to expand...
Click to collapse
Basically all Samsung Android phones from Galaxy S2 onwards support USB OTG out of box.
HTC follows Google's route that doesn't support any USB OTG out of box (Nexus N7 doesn't have USB OTG OOB) for whatever reason.
The only reason I'm interested in USB OTG is to use an external storage when I'm traveling, e.g. on a flight. The requirement of an external 5v supply basically kills it for me. It would scare the heck out of fellow passengers when they saw me plug some wires to the phone connecting to some external battery pack and storage card
My reason for wanting otg is so I can backup and review photos from my DSLR camera when I'm on trips. The external power requirement is an annoyance, but I can easily deal with it back in the hotel room.
I wonder what the current threshold is to get the USB controller to think it is charging?
Would this work: attach a watch battery of the correct voltage and a resistor to limit current draw to one side of the splitter and have a device (battery, resistor, splitter, OTG cable) that's not all that big.
I too would like to access digicam SD storage via my phone for minor edits and uploading.
foxbat121 said:
The only reason I'm interested in USB OTG is to use an external storage when I'm traveling, e.g. on a flight. The requirement of an external 5v supply basically kills it for me. It would scare the heck out of fellow passengers when they saw me plug some wires to the phone connecting to some external battery pack and storage card
Click to expand...
Click to collapse
LOL that is worth doing just for the lol involved make sure you wear a turbin on the flight too for added effect and sit there speaking gibberish the whole time as well! Actually you should pull the battery supply from your turbin HAHAHA
On a serious note: I can't wait for OTG to hit our device either we really could use it and rohan32 is trying to work it into his new kernel possibly.
Hey guys, I just got my Surface Pro yesterday to replace my old HP Pavilion laptop which was really slow and has its fair share of problems. The one gripe I have with the Surface Pro is its lack of ports.
I want to be able to plug in a mouse and at least on USB drive but a singular USB 3.0 port just isn't going to cut it. So my question is, does anyone have an idea or know of anything that will allow me to plug in both a mouse and a usb stick? Any help would be greatly appreciated.
p.s I am aware of the docking station but its price point is a bit ridiculous. I just want a cheap alternative that won't detract from the design too much as there is a case but it's added size is very unreasonable.
The device you are looking for is incredibly common and so common that you can walk into walmart and have a whole selection of them available. USB Hub. Surprised you havent come across one before.
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"lightbox_stop_slideshow": "Stop slideshow",
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"lightbox_download": "Download",
"lightbox_share": "Share",
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Depending on the number of ports and whether it is mains or bus powered they can be pretty cheap.
SixSixSevenSeven said:
The device you are looking for is incredibly common and so common that you can walk into walmart and have a whole selection of them available. USB Hub. Surprised you havent come across one before.
Depending on the number of ports and whether it is mains or bus powered they can be pretty cheap.
Click to expand...
Click to collapse
Thanks heaps for the reply. I was actually thinking of these but I wasn't sure if they would work correctly. I'm not very familiar with USB 3.0 and what it can and can't do. I just need a USB hub that has a USB 3.0 upstream and at least 2 USB 2.0 downstreams so I can still plug in my mouse and hardrive and all those other things that have a USB 2.0 upstream. I was looking at these in particular and was wondering if they were 4 USB 3.0 ports or if it was a 3.0 male connector and 4 USB 2.0 female connectors.
http://www.ebay.com.au/itm/4-Port-U...Laptop_Accessories&hash=item4ac5d3e8e3&_uhb=1
http://www.ebay.com.au/itm/m-Speed-...Laptop_Accessories&hash=item51b73b7190&_uhb=1
Any help would be greatly appreciated. If you are able to link me to a cheap one then that would be awesome
Both of the devices you linked claim to be USB3.0 downstream, so would indeed convert 1 USB3.0 slot on the surface to 4 USB3.0 slots, in theory anyway.
Of course in reality, you are sharing 1 ports bandwidth among 4, but for a mouse and a memory stick this is not a problem at all. I've run mouse, keyboard, xbox 360 controller and an external hard drive from a USB2.0 hub without issue, you get the massively faster USB3.0
SixSixSevenSeven said:
Both of the devices you linked claim to be USB3.0 downstream, so would indeed convert 1 USB3.0 slot on the surface to 4 USB3.0 slots, in theory anyway.
Of course in reality, you are sharing 1 ports bandwidth among 4, but for a mouse and a memory stick this is not a problem at all. I've run mouse, keyboard, xbox 360 controller and an external hard drive from a USB2.0 hub without issue, you get the massively faster USB3.0
Click to expand...
Click to collapse
Thanks heaps for that. I just realised that I can plug in a USB 2.0 into the 3.0 port. Sorry for sounding like an idiot but it's just my first device with a 3.0 port.
So now I guess my only question would be whether or not having a switch on each port would make a difference vs no switch?
boss. said:
So now I guess my only question would be whether or not having a switch on each port would make a difference vs no switch?
Click to expand...
Click to collapse
not particularly, if it is a hub with switched ports you could save some battery but alot of hubs are autoswitching anyway and the difference isnt significant.
I use a bluetooth mouse with my surface pro. It connects directly to the bluetooth in the Surface, without anything plugged into the usb port. I find this very convenient and it leaves the usb port open for whatever else. I use the Microsoft bluetooth mouse 5000.
Sent from my GT-N5110 using Tapatalk
I have a USB3 hub, a inateck round hub, makes for easy plugging in various items and is powered, so not using battery up. Jim
Thanks heaps for the responses guys.
I was thinking of using one of the powered ones or the ones with switches so extra battery consumption is kept to a minimum. I have a bluetooth gaming mouse that i'm going to use but will end up getting a USB hub just so I can still have a memory stick plugged in if I need it.
I find that *in most cases* the load on the tablet battery is fairly low and doesnt warrant the extra fuss of a powered USB hub versus a bus powered hub. However, if you do decide to go with a self powered one, find that uses a usb style connector instead of a proprietary power connector. Then you can just use a regular usb cable to power the hub off of the surface's usb charging port on the power cord "brick". That eliminates the need to carry two power supplies with you.
Sent from my GT-N5110 using Tapatalk
The main advantage of a powered (vs. host-powered) hub isn't the battery life impact, but rather the limit on how much energy the host port can provide. Things like keyboards take almost nothing. Things like mice take a bit, but not too much. Things like external HDDs take a lot. Things like charging a phone or other device may take all the power the port can provide. Using a powered hub lets you connect several such devices (for example, your phone and your hard disk, in addition to your mouse and keyboard) without worrying that there won't be enough power for them.
Agreed. Its a question of amperage. Anything I connect to my Surface Pro has minimal power draw, such as a card reader or usb drive. If Im going to charge my phone (which draqs 2amps) I just connect it to handy chargung port on the AC adapter. All my other accessories (mouse and gps antenna) are bluetooth so they are not part of the equation. Im not debating anything above, but just offering the OP that you should consider your power needs and then you can decide if you need a powered hub or not.
Sent from my SM-N900V using Tapatalk
Officially you can draw 1.2A from a usb3 socket, reality is that you probably won't from my the surface. Mouse, keyboard and thumbdrive combined should be under 0.1A, 0.2 at the most. Not a massive impact on battery so I wouldn't be concerned.
hi everyone
I was wondering if anyone knows how to increase the voltages or amps for OTG to make power HDD successfully
I have 1TB and 2TB HDD
both are working with my Note 3 N9005 and Note Edge N915S without extra power
but for my Note Pro P905 they both need external power
the Note Pro does not provide enough power for them
so
I want to know if there are files that need to be edited to increase the power supplied for the HDD through OTG cable or do I need a custom kernel
thanks
That's odd. It reads my three 2TB WD Elements drives without issue... Even two of them at the same time over a hub works without issue.
ShadowLea said:
That's odd. It reads my three 2TB WD Elements drives without issue... Even two of them at the same time over a hub works without issue.
Click to expand...
Click to collapse
Over a hub with external power right?
It works with external power
But try connecting one of them directly without power
It will not work
The hard drives works with My note 3 and note edge without the need for external power
Teflanzy said:
Over a hub with external power right?
It works with external power
But try connecting one of them directly without power
It will not work
The hard drives works with My note 3 and note edge without the need for external power
Click to expand...
Click to collapse
No, just a regular USB hub without external power. This one: http://www.saturn.de/mcs/product/_ISY-IHU-1000-4-Port-Hub,48352,278643.html?langId=-3
But I do believe it depends on the drive itself. I have an Iomega 500Gb drive that won't load without external power, while my 2TB Western Digitals do.
ShadowLea said:
No, just a regular USB hub without external power. This one: http://www.saturn.de/mcs/product/_ISY-IHU-1000-4-Port-Hub,48352,278643.html?langId=-3
But I do believe it depends on the drive itself. I have an Iomega 500Gb drive that won't load without external power, while my 2TB Western Digitals do.
Click to expand...
Click to collapse
Which variant of the note pro do you have? Is it the P905?
If it is p905, then which rom are you using?
What cable do you use to connect the hub to the tab?
And which models are your 2tb hard drives?
Because i have wd passport 1tb and elements 2tb
Both are not working with tab but working with the phones
Teflanzy said:
Which variant of the note pro do you have? Is it the P905?
If it is p905, then which rom are you using?
What cable do you use to connect the hub to the tab?
And which models are your 2tb hard drives?
Because i have wd passport 1tb and elements 2tb
Both are not working with tab but working with the phones
Click to expand...
Click to collapse
P905, P905XXUANC3/P905DBTANC3, pure stock. (Yes, still on KitKat.)
USB Cable is the official Samsung ET-R205UBEG OTG cable.
The two drives are both WD Elements USB 3.0 2TB. Both formatted as EXFAT.
I had a WD Passport once, but it had problems with my old TF700T due to the backup partition and the autorun.
ShadowLea said:
P905, P905XXUANC3/P905DBTANC3, pure stock. (Yes, still on KitKat.)
USB Cable is the official Samsung ET-R205UBEG OTG cable.
The two drives are both WD Elements USB 3.0 2TB. Both formatted as EXFAT.
I had a WD Passport once, but it had problems with my old TF700T due to the backup partition and the autorun.
Click to expand...
Click to collapse
Do you connect any power to the otg?
I did not test it on kitkat because i directly update to lollipop
Teflanzy said:
Do you connect any power to the otg?
I did not test it on kitkat because i directly update to lollipop
Click to expand...
Click to collapse
Nope. No power to be found on a train or in the garden, sadly.
Ah. That could be it.
ShadowLea said:
Nope. No power to be found on a train or in the garden, sadly.
Ah. That could be it.
Click to expand...
Click to collapse
Buy a portable charger ��
Gonna try to get it back to kitkat and test it
Or see the difference in kitkat kernel vs lollipop kernel
update:
got back to KitKat (P905XXUANC3)
and it does not work without power also and I lost the LTE connection :crying:
flash drives are working fine
only problem is with the 1 tb and 2 tb hard drive
(I don't have a smaller hard drives to test for now)
going back to lollipop and gonna try to find a solution
Teflanzy said:
Buy a portable charger ��
Gonna try to get it back to kitkat and test it
Or see the difference in kitkat kernel vs lollipop kernel
update:
got back to KitKat (P905XXUANC3)
and it does not work without power also and I lost the LTE connection :crying:
flash drives are working fine
only problem is with the 1 tb and 2 tb hard drive
(I don't have a smaller hard drives to test for now)
going back to lollipop and gonna try to find a solution
Click to expand...
Click to collapse
Bah, I'd really hoped that would work...
I have a portable powerpack, a 15600mAh Asolar Xstorm. It's just not very convenient to have to juggle a 12" tablet, portable harddrive hanging from an OTG cable, as well as a powerpack the size of a 6" phone, alongside my already 5.7" phone, whilst switching trains and standing in crowded carriages. :laugh:
ShadowLea said:
Bah, I'd really hoped that would work...
I have a portable powerpack, a 15600mAh Asolar Xstorm. It's just not very convenient to have to juggle a 12" tablet, portable harddrive hanging from an OTG cable, as well as a powerpack the size of a 6" phone, alongside my already 5.7" phone, whilst switching trains and standing in crowded carriages. :laugh:
Click to expand...
Click to collapse
Can you take a video showing that you have a 2tb hard drive connected to your Note pro without external power?
I need to show the technician of Samsung so that they will fix my note pro on the warranty
Teflanzy said:
Can you take a video showing that you have a 2tb hard drive connected to your Note pro without external power?
I need to show the technician of Samsung so that they will fix my note pro on the warranty
Click to expand...
Click to collapse
The only drive I have with me right now is formatted in NTFS. (Because the piece of crap Windows XP Dell PC I have to use here is too old to recognize EXFAT, and FAT32 doesn't support 5GB Photoshop files.) All it does is give an Unsupported file system error. (Which makes sense, as I haven't rooted)
Edit: Okay, borrowing a drive from a friend to check, this is a 1TB WD Elements in EXFAT...
Edit 2: That somehow won't load. Device just says it's blank or unsupported. I'm confused, why isn't this one working?
ShadowLea said:
The only drive I have with me right now is formatted in NTFS. (Because the piece of crap Windows XP Dell PC I have to use here is too old to recognize EXFAT, and FAT32 doesn't support 5GB Photoshop files.) All it does is give an Unsupported file system error. (Which makes sense, as I haven't rooted)
Edit: Okay, borrowing a drive from a friend to check, this is a 1TB WD Elements in EXFAT...
Edit 2: That somehow won't load. Device just says it's blank or unsupported. I'm confused, why isn't this one working?
Click to expand...
Click to collapse
Can you try with your hard drives and make a video?
I can't make a test because my portable drives are all formatted ext 4 or ntfs, but I'd check the portabla case itself: many portable cases show strange incompatibilities: a different chipset and/or usb chip can be the culprit. Unfortunately the only way to check this is to open the case. WD may have changed something in the hardware or the firmware, if any, over the time and this could explain why some drives work and some not.
My suggestion is to check the compatibility prior to buy a portable drive.
It is not the hard disk itself
the problem is with the note pro
i have many 2tb & 1tb hard drives
all of them work well with my phones
but none work with the note pro
Teflanzy said:
It is not the hard disk itself
the problem is with the note pro
i have many 2tb & 1tb hard drives
all of them work well with my phones
but none work with the note pro
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Click to collapse
Not the hard disk but its case. It is the combination of case and taget device that makes the difference. Some of my devices do not work if attached to my modem but do work attached to to my laptop or desktop pc, others do the opposite. The only case I found to be compatible with all my devices is a thermaltake one, that I bought because it was listed in the compatibility list of my desktop's motherboard.
Teflanzy said:
hi everyone
but for my Note Pro P905 they both need external power
the Note Pro does not provide enough power for them
thanks
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Click to collapse
my hdd also requires a battery pack to function over otg. its a 500gb usb3 toshiba. i went round and round with this for months and could never solve the problem. mine is the verizon unit, and i think that has something to do with it as any other non-verizon note pro sees the hdd with no problem, no power pack needed. (even works fine with tab pro wifi model and galaxy s4, s5, and s6). didn't matter how i formatted the drive, it still wouldn't see it without the power pack.
quite frustrating.
-lq
This will depend mainly from the Hdd that's inside the case.
I personally assemble my portable hdd's buyn a case and a low power hdd (Wd green or so on). It's very simple and you know what you have. Doing this way I never had power problems even with usb2 sokets.
Keep in mind that an usb3 Soket is rated at up to 1 Amp, while an USB2 socket is rated at max 0.5 Amp. I don't believe that any portable 2.5" HD will absorb all that power , but I would not be surprised if on a tablet the available current was much less, to limit the maximum discharge rate of the battery with consequent risks of dangerous overheatings.
In any case I guess that on the Market there are cheap usb gadgets able to measure the absorbed current from an USB socket. Ebay or Aliexpress can be good sources for such gadgets.
BuHaneenHHHH said:
hi everyone
I was wondering if anyone knows how to increase the voltages or amps for OTG to make power HDD successfully
I have 1TB and 2TB HDD
both are working with my Note 3 N9005 and Note Edge N915S without extra power
but for my Note Pro P905 they both need external power
the Note Pro does not provide enough power for them
so
I want to know if there are files that need to be edited to increase the power supplied for the HDD through OTG cable or do I need a custom kernel
thanks
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I've posted this problem on other thread too but the question is related to this thread too, hence I'll ask.
My smartphone (an Asus device) is able to power up HDD (2tb Seagate Slim BUP) by itself and can read and write files too(I use Total Commander app along with a 3rd party plugin to read and write to NTFS drive.) Problem is my smartphone's battery drops 1% every 1.5 mins when HDD is connected to it directly.
So I want external HDD to draw power from external supply ONLY (from powerbank or 2A charger) and not smartphone. Ofcourse phone will use some power but primarily HDD should use external supply power.
Is it possible to do this ? If yes, which hub or cable should I use ?
I had bought a OTG Y cable but on connecting micro usb end of cable to smartphone, phone started charging itself and HDD turned off. I tried both 5V 2A charger and powerbank with same output.
Is there such thing as a hub or OTG Y cable won't use external power if smartphone is capable supplying required power? Or the cable was faulty? I'm new to all this so could you tell what went wrong ?
pramod2259 said:
I've posted this problem on other thread too but the question is related to this thread too, hence I'll ask.
My smartphone (an Asus device) is able to power up HDD (2tb Seagate Slim BUP) by itself and can read and write files too(I use Total Commander app along with a 3rd party plugin to read and write to NTFS drive.) Problem is my smartphone's battery drops 1% every 1.5 mins when HDD is connected to it directly.
So I want external HDD to draw power from external supply ONLY (from powerbank or 2A charger) and not smartphone. Ofcourse phone will use some power but primarily HDD should use external supply power.
Is it possible to do this ? If yes, which hub or cable should I use ?
I had bought a OTG Y cable but on connecting micro usb end of cable to smartphone, phone started charging itself and HDD turned off. I tried both 5V 2A charger and powerbank with same output.
Is there such thing as a hub or OTG Y cable won't use external power if smartphone is capable supplying required power? Or the cable was faulty? I'm new to all this so could you tell what went wrong ?
Click to expand...
Click to collapse
i think you should buy a usb hub that can be powered and connect it to the otg cable and connect the power to the hub not to the OTG Y cable
i remember using a Y usb cable like this
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
i connected the hdd to the tablet using an otg cable and connected the extra usb from the Y cable to my laptop usb port (because it was short and the laptop is closer than the charger )
using this method my hdd worked on my note pro
sadly i do not have the tablet anymore to test it out now