Hey, I was wondering if anyone knows how the Nexus Tablet 7 charges? Not through the USB port, right?
I have a Transformer right now w/ the dock & 2 full sized usb ports on it. But I have been waiting for the Nexus Tab for months, because of the screen, processor, and price. however since it does not have a microSD, I would definitely need to be able to plug in my 500GB usb hdd into it. I would need a OTG cable, right? And it does not use the MicroUSB port to charge, right? Otherwise how could you use the usb and charge it at the same time? Hoping someone can clear this up for me, thanks!
mvmacd said:
Hey, I was wondering if anyone knows how the Nexus Tablet 7 charges? Not through the USB port, right?
I have a Transformer right now w/ the dock & 2 full sized usb ports on it. But I have been waiting for the Nexus Tab for months, because of the screen, processor, and price. however since it does not have a microSD, I would definitely need to be able to plug in my 500GB usb hdd into it. I would need a OTG cable, right? And it does not use the MicroUSB port to charge, right? Otherwise how could you use the usb and charge it at the same time? Hoping someone can clear this up for me, thanks!
Click to expand...
Click to collapse
ditto. i would like to know the same thing.
it should be pretty easy to do, but not sure if its possible.
enohand said:
ditto. i would like to know the same thing.
it should be pretty easy to do, but not sure if its possible.
Click to expand...
Click to collapse
great, yeah, I would think you can do it but I just wanted to be sure before buying it. Perhaps when someone gets their Nexus Tab they can try it and tell us.
I'm not sure what the thoughts are around it, but I know Seagate has a portable Wifi Harddrive with an 8 hour battery.
http://www.seagate.com/external-hard-drives/portable-hard-drives/wireless/goflex-satellite/
I'm hoping that will deal with my additional storage capacity. I would love to know if it uses MicroUSB to charge just to avoid carrying several thousand adapters though.
mvmacd said:
great, yeah, I would think you can do it but I just wanted to be sure before buying it. Perhaps when someone gets their Nexus Tab they can try it and tell us.
Click to expand...
Click to collapse
after some digging i found out that the OTG cable or USB functionality does not work for external drives & only works for keyboard & mice by default.
im sure somthing has to be written to do this, or somthing has to be added to include the mass storage driver ?>
Well, Ebay says...
What's in the sealed box:
· Nexus 7 tablet
· >>>> USB sync/charge cable <<<<
· Dual-voltage USB wall charger
· Quick start guide
Click to expand...
Click to collapse
Spare charger puts out 5V 2000ma so yes it can charge via USB but much slower. The battery is so large most usb puts out 500ma so it would take 8 hours to charge battery from empty to full.
ToyTank said:
Spare charger puts out 5V 2000ma so yes it can charge via USB but much slower. The battery is so large most usb puts out 500ma so it would take 8 hours to charge battery from empty to full.
Click to expand...
Click to collapse
Hmm, well what I was asking if there was a way to charge AND use the usb port at the same time. Maybe with a powered hub, and a OTG cable? Anyway, would charging it via 5v 500 mAh be able to keep the battery level full? while using it, starting from fully charged?
enohand said:
after some digging i found out that the OTG cable or USB functionality does not work for external drives & only works for keyboard & mice by default.
im sure somthing has to be written to do this, or somthing has to be added to include the mass storage driver ?>
Click to expand...
Click to collapse
okay, ugh.. I really hoped Google would just support usb host mode off the bat. I guess all that's needed would be a kernel with host mode supported. but you'd need CWM, and root for that.. are there any forums that have the Nexus Tablet 7 category yet?? I would like to stay tuned for updates.
mvmacd said:
how could you use the usb and charge it at the same time?
Click to expand...
Click to collapse
You can always use USB hubs (not 100% sure). But, I'd recommend you to access your HDD over Wi-Fi. Many Wi-Fi routers support HDD connectivity. And, you can find HDDs with in-built Wi-Fi, too.
ToyTank said:
Spare charger puts out 5V 2000ma so yes it can charge via USB but much slower. The battery is so large most usb puts out 500ma so it would take 8 hours to charge battery from empty to full.
Click to expand...
Click to collapse
Hmm, well what I was asking if there was a way to charge AND use the usb port at the same time. Maybe with a powered hub, and a OTG cable? Anyway, would charging it via 5v 500 mAh be able to keep the battery level full? while using it, starting from fully charged?
enohand said:
after some digging i found out that the OTG cable or USB functionality does not work for external drives & only works for keyboard & mice by default.
im sure somthing has to be written to do this, or somthing has to be added to include the mass storage driver ?>
Click to expand...
Click to collapse
okay, ugh.. I really hoped Google would just support usb host mode off the bat. I guess all that's needed would be a kernel with host mode supported. but you'd need CWM, and root for that.. are there any forums that have the Nexus Tablet 7 category yet?? I would like to stay tuned for updates.
The tablet does support host mode.
However it can only be used for keyboard and mice, there is no drivers for external, or is sticks. Someone w ok und have to implement that with a Asop Rom
Sent from my SCH-I535 using xda app-developers app
enohand said:
The tablet does support host mode.
However it can only be used for keyboard and mice, there is no drivers for external, or is sticks. Someone w ok und have to implement that with a Asop Rom
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
I just found this: http://rootzwiki.com/topic/30129-kernel-nexus-7-cifsntfsusb-otg/
that will let me get a Micro USB OTG, and be able to plug in my usb hdd? And if I get a powered USB 2.0 hub, I can plug the OTG into the source port, and the power from the hub will charge it? and while it's charging I can then plug in my USB hdd into a port on the hub and it will charge & use the hdd at the same time?
If so as soon as I get home I will start looking for a Nexus Tab to buy
IndustryCanada said:
I'm not sure what the thoughts are around it, but I know Seagate has a portable Wifi Harddrive with an 8 hour battery.
http://www.seagate.com/external-hard-drives/portable-hard-drives/wireless/goflex-satellite/
I'm hoping that will deal with my additional storage capacity. I would love to know if it uses MicroUSB to charge just to avoid carrying several thousand adapters though.
Click to expand...
Click to collapse
Also Kingston has SSD wi-fi drives of 16, 32 or 64GB capacity - are about the size of an iPhone. Uses mini-USB for charging. http://www.amazon.com/Kingston-Wi-Drive-Mini-USB-WID-64GB-A/dp/B00822GIH2/ref=sr_1_1?ie=UTF8&qid=1342706869&sr=8-1&keywords=kingston+wi-drive+64gb
cushcalc said:
Also Kingston has SSD wi-fi drives of 16, 32 or 64GB capacity - are about the size of an iPhone. Uses mini-USB for charging. http://www.amazon.com/Kingston-Wi-Drive-Mini-USB-WID-64GB-A/dp/B00822GIH2/ref=sr_1_1?ie=UTF8&qid=1342706869&sr=8-1&keywords=kingston+wi-drive+64gb
Click to expand...
Click to collapse
Here's the thing, I already got a Seagate 500gb 7200rpm drive, so I ain't interested in wifi drives. I was looking for confirmation that the kennel I linked world make it work. And also Confirmation about the usb hub charging and accessing hdd at the same time, so if anyone has a Nexus 7 and OTG cable and would test this I'd be much obliged.
mvmacd said:
I just found this: http://rootzwiki.com/topic/30129-kernel-nexus-7-cifsntfsusb-otg/
that will let me get a Micro USB OTG, and be able to plug in my usb hdd? And if I get a powered USB 2.0 hub, I can plug the OTG into the source port, and the power from the hub will charge it? and while it's charging I can then plug in my USB hdd into a port on the hub and it will charge & use the hdd at the same time?
If so as soon as I get home I will start looking for a Nexus Tab to buy
Click to expand...
Click to collapse
I don't think so, the power source of a hub only delivers energy to the devices connected, not to the host
It charges like any other android phone.
RoberGalarga said:
I don't think so, the power source of a hub only delivers energy to the devices connected, not to the host
Click to expand...
Click to collapse
hmm.. you're right. so much for that idea..
Is there any way possible to charge the nexus tablet while using a OTG cable for plugging in a usb device?
what about a Y-Cable?
mvmacd said:
hmm.. you're right. so much for that idea..
Is there any way possible to charge the nexus tablet while using a OTG cable for plugging in a usb device?
what about a Y-Cable?
Click to expand...
Click to collapse
Hmm... a good idea. Time to paint
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Will it work? I dunno, but it's an idea to start
RoberGalarga said:
Hmm... a good idea. Time to paint
Will it work? I dunno, but it's an idea to start
Click to expand...
Click to collapse
Wow, exactly what I had in mind before I thought of the y cable. however I'd like to hear the outcome if anyone does try this, or the y cable
Dam...
No it will not work, the device does not have the ability to Mount a drive, it doesn't have the software needed to do so
Sent from my SCH-I535 using xda app-developers app
Related
Just wondering if a typical cell charger can provide enough power to power these three things. (or if it will even work properly)
1 The Phone
2 A USB flash drive
3 HML adapter
What I want to do is connect power to the USB splitter male (I already have a wall plug to USB female adapter) then with the USB female ends I will connect a USB flash drive and then use a male USB to male micro-USB cable to power the MHL adapter. The phone goes to the other micro-USB end of the MHL adapter.
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I want this for two reasons. 1 So I can play media from a flash drive to a TV or monitor and 2 (if this will even work) use it to connect a USB to XLR cable so that I can record with a better quality microphone to my phone.
I realize that the phone being able to recognize and use the flash drive or microphone may be an issue but I can take a chance on that if nobody can confirm if it will or will not work.
BTW: if you have not already noticed, we are finally starting to get some reasonably priced MHL adapters on fleabay now. They are ranging from around 20-26 CAD (one in picture is 26)
I would like to know as well, as that sounds like a great alternative to carrying around DVD's and stuff, maybe even an externally powered harddrive, would need extfat or ntfs support though for large files.
Sent from my GT-I9100 using XDA Premium App
Linux reads NTFS hard drives and flash drives fine, so I am hoping that Android should also.
I was planning on getting the MHL adapter regardless anyway, and the other cables that I would need would only be like 10 bucks. So I am wanting to try it out since, like you say, opens up more options for portability that may replace other devices or at least take up less space.
I was mainly looking to see if I would hear a show stopper of why not to do this, like if this set up could damage something that is connected.
K3VL4R said:
Linux reads NTFS hard drives and flash drives fine, so I am hoping that Android should also.
I was planning on getting the MHL adapter regardless anyway, and the other cables that I would need would only be like 10 bucks. So I am wanting to try it out since, like you say, opens up more options for portability that may replace other devices or at least take up less space.
I was mainly looking to see if I would hear a show stopper of why not to do this, like if this set up could damage something that is connected.
Click to expand...
Click to collapse
You will need a proper usb to go cable to connect the flash drive or hdd, i have connected a flash drive to my phone without any problems..
I would think you would need a custom kernels or ntfs-3G modules for the kernel you are using.
The big thing is if the phone can deal with being charged, output hdmi and connect to a HDD over the same usb port at the same time?
Maybe a powered hub?
Also wondering if there would be enough bandwidth on the bus to support that all.
The big thing that would be good for me is that I could buy a cheap self powered hdd, load it up with movies and stuff and watch it while at work where there's a lot of down time, and being able to charge and use tv out at the same time would mean I could watch the iplayer or something on the tv without having to worry about battery life!
Hey, connect a mouse and keyboard as well and your phone is basically a normal computer!
Sent from my GT-I9100 using XDA Premium App
Good idea. This powered hub is almost as cheap as the splitter cable and should take care of any power requirements.
As for the on-the-go cable, I have different angled micro male to usb female cables already so that I can help take stress off the jack when using it while charging. My USB flash drive does not power up with this cable. I just assumed it needed external power. What is different about the OTG cable, did they twist some wires or are mine just meant for charging if they are not working ? All the pins are present and the cable is thick, so no reason why they would not just connect everything internally.
Thanks for the replies so far.
K3VL4R said:
Good idea. This powered hub is almost as cheap as the splitter cable and should take care of any power requirements.
As for the on-the-go cable, I have different angled micro male to usb female cables already so that I can help take stress off the jack when using it while charging. My USB flash drive does not power up with this cable. I just assumed it needed external power. What is different about the OTG cable, did they twist some wires or are mine just meant for charging if they are not working ? All the pins are present and the cable is thick, so no reason why they would not just connect everything internally.
Thanks for the replies so far.
Click to expand...
Click to collapse
In order for usb to go to work you need a special cable, its got a special pin that's grounded or floating or has a few different values depending, the cables are very cheap on eBay or there's guides on how to make them.
OTG won't work with generic cables im afraid.
I just want this idea to work myself :d
Sent from my GT-I9100 using XDA Premium App
Im sitting here with a SGS2 with a USB kb, mouse, and a flash drive connected to it.
SGS2> (usb to go cable) > Powered hub > Mouse + keyboard + flash drive.
To get random devices to work (not hubs, input devices) you will need to add the device ids, see this thread for more info, more info and some device/vendor ids and a huge list of almost every device/vendor id
Attached is a rules file with logitech and some other vendors, add and expand as needed!
Now I need to buy a micro USB > many micro USB's and a mhl cable!
The powered hub is a must or stuff just wont work due to the power draw.
Im looking at picture of the MHL adaptor, and they all have a USB port for passthough, so we can defo at the very least charge while outputting via it.
The big question now is if you can daisy chain and do MHL and OTG at the same time!
Well, unless on a lucky chance the USB port will work with a splitter, you cant do MHL and OTG at the same time. A real shame
Thanks for the updates and links veyka. It also looks like the OTG cables do not charge the phone with the jumpered pins, so I will have to make sure and mark the OTG cables when they get here.
I should have the rest of my cables arrive in about 2-3 weeks and will post an update of what will or will not work. Sounds like the OTG cable alone should work with the USB to XLR cable for a microphone, as long as I can find a way to get the phone to recognize it. Though it would be nice to charge at the same time as well which the OTG does not support.
Do you know off hand what the headphone jack will accept for inputs ? Will it take TRRS or TRS audio in as well ? I am just looking at more options for XLR to the phone for connectivity without needing a mixer. Then I will use a mixer as well to see how much of a difference the balanced XLR out will make.
K3VL4R said:
Thanks for the updates and links veyka. It also looks like the OTG cables do not charge the phone with the jumpered pins, so I will have to make sure and mark the OTG cables when they get here.
I should have the rest of my cables arrive in about 2-3 weeks and will post an update of what will or will not work. Sounds like the OTG cable alone should work with the USB to XLR cable for a microphone, as long as I can find a way to get the phone to recognize it. Though it would be nice to charge at the same time as well which the OTG does not support.
Do you know off hand what the headphone jack will accept for inputs ? Will it take TRRS or TRS audio in as well ? I am just looking at more options for XLR to the phone for connectivity without needing a mixer. Then I will use a mixer as well to see how much of a difference the balanced XLR out will make.
Click to expand...
Click to collapse
In the end android should support anything linux does, you might need to build a kernel module (driver) or find someone that will for you.
You can get pretty much any input device going with the links above, but other stuff, I dont know im afraid
Hope lives eternal.
No clue im afraid
No problem bud. You have been more than helpful already. I already have a plethora of cables and devices for recording on laptop and PC with Windows and Linux. My Android uses for recording are so far purely just for practicing so that I have it down in case something of interest is created. So ease of use and portability is the main factor.
It also interested me just to be able to find different ways of recording since so much of it is done through software these says. The more knowledgeable I am with cables, signals and processing, the more options that I will have available to me. Though I still like to mic an amp then process afterwards.
Here is a companion device for those already using the the Webtop hack.
http://forum.xda-developers.com/showthread.php?t=1199443
It's the same OTG USB hub hack used with the Atrix, just wanted to share my setup and testing. So far it works excellent.
Right now, I have a USB keyboard and mouse, a FAT32 flashdrive, and a FAT32 external HDD all hooked up the the hub, and I'm watching a movie
off the HDD.
The basic theory of operation is that in micro usb connectors there is a fifth pin, actually the 4th over in a schematic. That pin is actually the ID pin, when its state changes it indicates to the phone that it USB mode is changing. In our case, we ground it, telling the phone to go into host mode. Now because the phone cant supply power to the USB device, we have the red jumper wire on the hub itself. This is effectively bridging the +5 from the power supply to the phone.
It should be noted that as of this post, i have only tested FAT32 formatted drives with this setup.
I'm working with a friend at the moment on an NTFS module, so the Photon can utilize NTFS drives.
Now, my setup looks a bit off because my connectors are on order and the one in the pictures, is one I cut out of a motorola cable. So it doesn't look pretty, but works great.
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Great job!
What type of usb hub can I use? does it have to have usb 2.0 or 3.1? Does it have to have ac adapter? Can I use a usb host cable otg instead of a micro usb and does it make a difference?
Thanks in advanced!
Sent from my MB855 using xda premium
jguevara4854 said:
What type of usb hub can I use? does it have to have usb 2.0 or 3.1? Does it have to have ac adapter? Can I use a usb host cable otg instead of a micro usb and does it make a difference?
Thanks in advanced!
Sent from my MB855 using xda premium
Click to expand...
Click to collapse
It can be any powered hub, if you plan to use an external HDD with it you should make sure the power supply for the hub is at least 2 amps. For now its only USB 2.0, USB 3 isnt compatible. I modified a stock USB micro cable, but you can but a OTG cable that will work with this setup. Like the link below, that is a OTG adapter. Also, the hub would need a few modifications, like i was talking about at the top.
http://www.amazon.com/USB-Micro-Female-Male-Adaptor/dp/B0023FTRUO/ref=pd_sim_dbs_cps_2
You guys rock
Sent from my MB855 using xda premium
Nice work.
TS
This is what I've done... not sure if I did it right. Pls run a quick look see if I did?
Thanks in advanced.
Sent from my MB855 using xda premium
Connected a phat32 hdd and mouse and keyboard non seem to work. My set up is usb to otg micro and judging from my soldering skills you can clearly see I added a white cable to jump from power to usb.
Sent from my MB855 using xda premium
You may want to check your OTG cable. If its not set up properly it will not function. The un-used pin in the micro connector must be grounded. Ive noticed not all the cables you can buy are quite right. Thats why i build my own. I hope to get up rev 2 tomorrow...a bit more in depth. Maybe i can shed some more light on the issue...
Sent from my MB855 using xda premium
Thanks for looking into this.
So, once you've mod a USB hub, are you using a cable that is <male micro USB to female USB A>?
I've not seen that before. Usually, USB cables that have a micro USB on one end will have a male USB A on the other, not a female. I did a quick search and couldn't really find any <male micro USB to female USB A> cables. I also didn't see any female A to female A cables that would allow for the same thing.
Please elaborate, thanks.
Edit: oh, maybe you use a USB 2.0 A to Micro B Female / Male Adaptor?
You need to buy some from amazon search micro usb to usb female. Or ever female usb to female usb they sell for $2 plus shipping. I bought otg cable didn't make a difference had to take it apart as well.
Sent from my MB855 using xda premium
Still no luck.. what usb hub are you using make and model.
Thanks in advance
Sent from my MB855 using xda premium
Got it working quick and cheap no soldering of any sort. dual power 1000ma usb 2 0 4 port hub and otg cable of your choice. If you dont want to waste time you can find at your nearest radioshack and best buy.
http://www.dealextreme.com/p/cable-style-dual-power-1000ma-usb-2-0-4-port-hub-13526
Same site you can find micro otg cable for about $3-$4
jguevara4854 said:
Got it working quick and cheap no soldering of any sort. dual power 1000ma usb 2 0 4 port hub and otg cable of your choice. If you dont want to waste time you can find at your nearest radioshack and best buy.
http://www.dealextreme.com/p/cable-style-dual-power-1000ma-usb-2-0-4-port-hub-13526
Same site you can find micro otg cable for about $3-$4
Click to expand...
Click to collapse
Did you find the OTG cable on DX, because I can't find it, can you reply with a link???
Sent from my MB855 using xda premium
http://www.dealextreme.com/p/micro-usb-on-the-go-host-otg-adapter-pair-50774
Sent from my MB855 using xda premium
Just a heads up you need to connect your usb power adapter to the red usb from the hub then your otg and phone to the black and keyboard/mouse infra-red or 2.4 ghz stuff to the female usb adapters. Remember red goes to power!
I went back and forth trying to figure it out when all i had to do was push power to red. Duh!!
Sent from my MB855 using xda premium
Do you have a link for the Motorola branded one you posted?
Thanks!
jguevara4854 said:
Got it working quick and cheap no soldering of any sort. dual power 1000ma usb 2 0 4 port hub and otg cable of your choice. If you dont want to waste time you can find at your nearest radioshack and best buy.
http://www.dealextreme.com/p/cable-style-dual-power-1000ma-usb-2-0-4-port-hub-13526
Same site you can find micro otg cable for about $3-$4
Click to expand...
Click to collapse
http://www.amazon.com/gp/aw/d/B004UAG6WC/ref=mp_s_a_1?qid=1317309253&sr=8-1
Motorola camera kit
Sent from my MB855 using xda premium
Its way cheaper on dealextreme. But. U can also order from amazon for quicker delivery and theres cheaper ones just search micro usb host adapter
Sent from my MB855 using xda premium
jguevara4854 said:
Got it working quick and cheap no soldering of any sort. dual power 1000ma usb 2 0 4 port hub and otg cable of your choice....
http://www.dealextreme.com/p/cable-style-dual-power-1000ma-usb-2-0-4-port-hub-13526
Same site you can find micro otg cable for about $3-$4
Click to expand...
Click to collapse
Ok, I was confused by what jguevara wrote. jguevara, could you tell me if I got this right?
1) Buy this OTG "cable" - it's really just a adapter:
http://www.dealextreme.com/p/micro-usb-on-the-go-host-otg-adapter-pair-50774
2) You might also want a hub for powering USB devices
http://www.dealextreme.com/p/cable-style-dual-power-1000ma-usb-2-0-4-port-hub-13526#open full view
The OTG adapter already does the "4th pin to ground" thing described by the OP, so using the adapter on the Photon makes the phone go into USB Host mode.
The phone, acting as host, won't have enough power via the USB port to power many USB devices, like portable hard drives. So that's why you need a powered USB hub. The hub in the link has an extra red USB connector. You can use the Motorola USB power adapter(the one that came with your phone) as a power source for the hub.
Also, I don't think this setup will charge your phone. It will charge devices connected to the other end of the USB HUB, but not your phone, correct? So, if you're using this setup to transfer files from one portable hard drive to another portable hard drive, with the phone acting as the USB host for the transfer, you'll be using up battery power the whole time it's transferring.
Do I have that right? jguevara?
I'm assuming Razr support usb host functionality as the motorola multimedia dock has USB ports.
I connected a samsung micro usb male to usb A female cable to it with a USB key (checked with a pair of models), but couldn't reach its files.
The Razr couldn't see it.
Maybe I'm missing something as I'm new to android world, but USB host functionality right from the phone without too many adapters would be the first thing I would show to any Apple's slave to show what modern phone is expected to do.
Hope I wasn't wrong as USB host capability + Bluetooth 4.0 together with its fast response and good audio were the quite unique specs (at least on the same device) which lead me to invest on it!
Anyone found a solution to use a standard adaptor or are we tied to the motorola multimedia dock (or hopefully at least a smaller proprietary adaptor?)
Maybe something like the Xoom 'desktop hack' could be a solution or is there any simpler one? I don't know exactly if this hack gave also OTG functionality together with unblocking the desktop mode (couldn't understand from what I googled around).
[go directly to the post with the actual findings
http://forum.xda-developers.com/showpost.php?p=20008351&postcount=31
I'll update this first post with a resume of the findings as soon as I'll have time to ]
Check this thread http://forum.xda-developers.com/showthread.php?t=1343982#post19398196
I have usb host cable from my old s2 ,i have tried but doesn't works any usb pendrive or usb mouse/keyboard.
Inviato dal mio XT910 usando Tapatalk
can u provide a link where did u buy it?
Szadzik said:
Check this thread http://forum.xda-developers.com/showthread.php?t=1343982#post19398196
Click to expand...
Click to collapse
Didn't helped, as from my first post I already checked with a samsung adaptor and didn't worked out of the box.
asheg said:
can u provide a link where did u buy it?
Click to expand...
Click to collapse
I bought it in a real life store, actually 'Mondadori informatica' which had in stock Razr since the 10th of November.
If it helps it is Model: ET-R205UBEGSTD by Samsung.
I checked it with two FAT32 memory sticks and didn't worked
It's useless.
You need a powered USBHost cable, so you need to connect the 5V to an external battery or an external power supply, and TX/RX to the USB end of the device you are connecting to the phone.
Or, alternatvely, you need a powered USB Hub.
It won't just work. Motos don't give any output power from the USB.
so did anyone find working otg usb host so far?
i have the proper nokia cable which works on the Xoom but it wil not work on the RAZR (i assume) until like the Xoom a custom kernel can be installed to access this feature.
dont see that coming anytime soon (least not Verizon RAZR)
Can't you all read what someone writes prior you?
USBOTG WORKS ONLY IF EXTERNALLY POWERED. HARDWARE LIMITATION.
kholk said:
Can't you all read what someone writes prior you?
USBOTG WORKS ONLY IF EXTERNALLY POWERED. HARDWARE LIMITATION.
Click to expand...
Click to collapse
If OTG functionality were just a matter of powering a device with an external source that would not be a big issue considering the avaiability of power reserve devices.
I think a step forward in understanding Razr's OTG capabilities will be given dismantling a multimedia docking station and playing with it as soon as it will be available.
@Karmarock
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1 VCC Red +5 V
2 D− White Data −
3 D+ Green Data +
4 ID none Mode Identification
5 GND Black Ground
LapDock:
+5V and GND connected directly to the battery of the LapDock, TX+RX connected to the integrated USB HUB.
Docking Station:
+5V and GND connected directly to external power (5V AC), TX+RX connected to the integrated USB HUB.
Oh, in BOTH, for enabling the Host Mode, pins 4 and 5 are shortcircuited, exactly as the USB OTG specifications.
Dismounted a micro usb male to USB female cable, to my surprise found it with connection 4 free.
Hence made the 4-5 bridge and checked again.
Yet no usb host connectivity with an external powered 2.5 HD.
The HD happened to charge the Razr.
Hence modified the cable disconnecting the +5V.
Now I should have an OTG cable with an external powered devices.
As soon as I'll find back my USB Y cable I'll check with it and some external devices to see if any of them is recognized right out of the box.
Yet I suspect that, like the Razr Upon USB connection let you choose between some differents kind of connections, maybe some settings has to trigger host mode.
Any idea?
You've done something wrong, mine works fine in USBHost Mode.
kholk said:
You've done something wrong, mine works fine in USBHost Mode.
Click to expand...
Click to collapse
Details? 10char
kholk said:
You've done something wrong, mine works fine in USBHost Mode.
Click to expand...
Click to collapse
What an incredible news!
There are quite a bunch of posts around about Razr USB host capability, but up to now (to my google capabilities) no one succeeded in connecting any external I/O!
I'm pretty sure about the wirings (at least according to pure guessing from your schematics) as I checked all of them with a tester.
The wiring I made is quite simple
on the micro USB side:
contacts 4 and 5 bridged
Data wires connected to its corresponding ones on the female USB.
Power and ground on the female USB taken from an male USB connected to a charger.
Anything wrong?
Now it comes the detail requests:
1) What does it happen when you connect your cable to the Razr. Does it recognize it in some way giving any notice?
2) Rooted is needed? (Mine is not yet rooted).
3) Any special setup/tweaking to have OTG working?
4) Where do you access the external I/O contenct? From a directory in \SDcard otherways where else? Can you name it?
5) What I/O have you succesfully connected? Any kind of memory stick works? Any kind of HD? Mouse? Keyboards?
Thanks in advance in the name of all of the Razr's users interested in usb host functionality!
You would have to connect ground from the charger to the phone also.
pajn said:
You would have to connect ground from the charger to the phone also.
Click to expand...
Click to collapse
Thanks Pajn for the suggestion, actually updated the wirings but with no luck!
Are you currently using a cable like this to connect devices to your Razr?
If the following questions could be answered at least we would know what to expect when the wirings are correct!
Karmarock said:
Now it comes the detail requests:
1) What does it happen when you connect your cable to the Razr. Does it recognize it in some way giving any notice?
2) Rooted is needed? (Mine is not yet rooted).
3) Any special setup/tweaking to have OTG working?
4) Where do you access the external I/O contenct? From a directory in \SDcard otherways where else? Can you name it?
5) What I/O have you succesfully connected? Any kind of memory stick works? Any kind of HD? Mouse? Keyboards?
Thanks in advance in the name of all of the Razr's users interested in usb host functionality!
Click to expand...
Click to collapse
@Kholk
Some words about your experience are eagerly waited with great anticipation!
Karmarock said:
Thanks Pajn for the suggestion, actually updated the wirings but with no luck!
Are you currently using a cable like this to connect devices to your Razr?
If the following questions could be answered at least we would know what to expect when the wirings are correct!
Click to expand...
Click to collapse
To bad it didn't work
No I have not tested. I proposed it because it have to be so electrically. If you don't connect ground the phone have no possibility to read the signal.
IE. if you power to things from different sources you should always connect the ground.
I don't have a cable so I can't test myself
Karmarock said:
What an incredible news!
There are quite a bunch of posts around about Razr USB host capability, but up to now (to my google capabilities) no one succeeded in connecting any external I/O!
I'm pretty sure about the wirings (at least according to pure guessing from your schematics) as I checked all of them with a tester.
The wiring I made is quite simple
on the micro USB side:
contacts 4 and 5 bridged
Data wires connected to its corresponding ones on the female USB.
Power and ground on the female USB taken from an male USB connected to a charger.
Anything wrong?
Now it comes the detail requests:
1) What does it happen when you connect your cable to the Razr. Does it recognize it in some way giving any notice?
2) Rooted is needed? (Mine is not yet rooted).
3) Any special setup/tweaking to have OTG working?
4) Where do you access the external I/O contenct? From a directory in \SDcard otherways where else? Can you name it?
5) What I/O have you succesfully connected? Any kind of memory stick works? Any kind of HD? Mouse? Keyboards?
Thanks in advance in the name of all of the Razr's users interested in usb host functionality!
Click to expand...
Click to collapse
The first try was with the Motorola LapDock, the second one with a custom USBOTG cable.
When you connect the RAZR to the USBOTG cable or to a LapDock, it says that a dock has been connected to the device (HD Multimedia Station or LapDock, both are recognized as docks, obviously).
So you have to connect something to your RAZR and it will be instantly recognized but the USB Device Connected notification is shown only in WebTop, not in Android.
The USBOTG cable HAS TO give power to the RAZR and to the devices you're connecting to it, otherwise the RAZR won't recognize the Dock Connected status.
Be sure your AC power is 5V with at least 1A, otherwise there won't be enough amperage for RAZR and the connected device and since the RAZR has got the priority, you'll only charge the device's battery and your connected USB device won't have the necessary power for working correctly.
ROOT is not needed for OTG USBHost operation as the device has been configured by Moto to work in USBHost Mode.
When you connect an external pendrive, the device will automatically create a device node and will automatically mount the connected pendrive/USBHDD in a directory created in /mnt.
I've successfully connected all the device I was able to use on ATRIX, including keyboards, mouses, an 8GB PenDrive and a 500GB external HDD.
I'm also about to see if I can do a modification to the ATRIX LapDock for including into it another USB HUB and a switchable (ON/OFF) 2.5 250GB SATA->USB HDD. If I'll success in this, I'll also post on xda-developers a thread with the instructions on how to do that.
I just got my DNA yesterday, and I have been testing a few USB peripherals to see how they work with an OTG adapter. I was unable to get anything working without an external power source, so I don't think the DNA is capable of delivering power via the port.
My setup consists of the following:
1. Belkin F5U234 4-port USB 2.0 hub
2. The hub is powered via a Mini USB Y-cable plugged into a USB PC/USB charging adapter (I can't seem to find the power adapter that came with the hub, but when I do, I'll test it)
3. The other end of the Y-cable is plugged into the OTG adapter, which is then plugged into the DNA.
From my experience so far, the hub has to be powered, with at least one peripheral plugged in, prior to plugging it into the phone.
I have been able to mount an SD card from a card reader and mount a USB flash drive.
I have been able to use a USB mouse.
I have not been able to get the phone to recognize a DSLR for use with DSLR Dashboard. However, I have not been able to do this on my Touchpad either, so it may be an operator malfunction. I've tried a Nikon D600 and D80.
USB keyboards should work.
Logitech Gamepad is recognized.
External hard drives are recognized, but should be formatted correctly.
Also worth noting is that the phone displays a message saying it's unable to charge the device and to use the supplied charger when the OTG cable is plugged in.
If someone can recommend a decent MIDI app for Android or a music production app, I have both MIDI devices and a Rocksmith cable that I can test with.
It has the ability to do USB otg self powered, just not enabled. Kernel needs it enabled.
Sent from my HTC One X using xda app-developers app
What format do you use for your hard drive? NTFS?
I've been plugging in USB flash drive, it mounts, but doesnt see any of my files on it... Also, it completely messed up my media files on the internal card, videos mostly, so I'm basically restoring the phone...
It doesn't seem to work with my wired Xbox 360 controller, sadly.
OTG WORKS
seedy oak said:
I just got my DNA yesterday, and I have been testing a few USB peripherals to see how they work with an OTG adapter. I was unable to get anything working without an external power source, so I don't think the DNA is capable of delivering power via the port.
My setup consists of the following:
1. Belkin F5U234 4-port USB 2.0 hub
2. The hub is powered via a Mini USB Y-cable plugged into a USB PC/USB charging adapter (I can't seem to find the power adapter that came with the hub, but when I do, I'll test it)
3. The other end of the Y-cable is plugged into the OTG adapter, which is then plugged into the DNA.
From my experience so far, the hub has to be powered, with at least one peripheral plugged in, prior to plugging it into the phone.
I have been able to mount an SD card from a card reader and mount a USB flash drive.
I have been able to use a USB mouse.
I have not been able to get the phone to recognize a DSLR for use with DSLR Dashboard. However, I have not been able to do this on my Touchpad either, so it may be an operator malfunction. I've tried a Nikon D600 and D80.
USB keyboards should work.
Logitech Gamepad is recognized.
External hard drives are recognized, but should be formatted correctly.
Also worth noting is that the phone displays a message saying it's unable to charge the device and to use the supplied charger when the OTG cable is plugged in.
If someone can recommend a decent MIDI app for Android or a music production app, I have both MIDI devices and a Rocksmith cable that I can test with.
Click to expand...
Click to collapse
A year ago I bought an OTG cable for my Rezound and of course it didn't work.
So yesterday, I visited the Verizon store to do a little testing with my dust laden OTG cable.
1) The DNA has a default setting for mounting SD cards. Settings--> Storage--> Mount SD. When I ticked this tab....bam!
2) The DNA recognized my Micro SD card from my Rezound phone. Upon opening the music player, the DNA found my music and played a song. Unfortunately, the phone didn't have a file manager app installed and the play store didn't have an account to enable downloading apps.
3) The DNA recognized my Logitech IR USB dongle but I wasn't able to get the keyboard working in the limited time I had. The Logitech keyboard showed up under Settings--> Launguage & keyboard--> Keyboard & input methods.
While I would prefer an SD slot, there is something to be said about being able to plug-in any USB storage device. I plan to return to the store and test further. For me, this is a game changer. I am seriously considering upgrading to this phone.
Now to overcome the case/battery issue. I'm very used to the comfort of the Rezound with the bulkier extended battery/case/holster setup. Fits perfect on my hip & hand, lasts all day and it's rooted with wifi tether. Meets all my needs but 1080p is addictive...
Icyman said:
A year ago I bought an OTG cable for my Rezound and of course it didn't work.
So yesterday, I visited the Verizon store to do a little testing with my dust laden OTG cable.
1) The DNA has a default setting for mounting SD cards. Settings--> Storage--> Mount SD. When I ticked this tab....bam!
Click to expand...
Click to collapse
What brand did you buy? I'm waiting for my DNA to get approved and I'm very interested in being able to continue to use my external SD card....plus if game pad peripherals work I'd be highly interested in that.
Icyman said:
Now to overcome the case/battery issue. I'm very used to the comfort of the Rezound with the bulkier extended battery/case/holster setup. Fits perfect on my hip & hand, lasts all day and it's rooted with wifi tether. Meets all my needs but 1080p is addictive...
Click to expand...
Click to collapse
My rezound's battery life is poor if I'm being optimistic and this is with barely using it. I have tried various kernels, roms, and batterys and I think this is just my third lemon.....Dying to get out of this into something else. I've read the fears on battery life but anything is better then what I have and a quadcore processor is worth dealing with it for the performance gain.
Bought THIS cable on ebay for a couple of bucks. Plugged a micro usb reader (with my 32Gig card in it) in one end and the other into my phone and voila! Complete access to my old external sd. Played my music fine and if I was rooted, I could restore an old Titanium backup. Love it!
So I been reading up on things dusting off my half knowledge of HTC (been since the Eris days) and from what I understand s-off is something that hasn't been real achievable for the phones that don't have am external sdcard. If what this thread is discussing do some more knowledgeable people think that this could be used to obtain s-off? The possibilities of this could be very promising our just wishful thinking!!
Sent from my AT100 using Xparent Blue Tapatalk 2
Was thinking the exact same thing....I know the crazy genius devs will figure something out.
Sent from my SCH-I535 using xda premium
milan03 said:
What format do you use for your hard drive? NTFS?
I've been plugging in USB flash drive, it mounts, but doesnt see any of my files on it... Also, it completely messed up my media files on the internal card, videos mostly, so I'm basically restoring the phone...
Click to expand...
Click to collapse
I belive the drive must be Fat untill NTFS is enabled in the kernal (based on the way the EVO worked)
Sent from my EVO using xda premium
Wanted to weigh in. I got an otg cable and used a Usb hub (not powered externally) and both my Logitech g9x mouse and Microsoft sidewinder x4 keyboard work and are powered by the phone. The game pad I have does not work.
edit: some pictures for proof just incase
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Also I know its hard to see the lights on the keyboard but they are on as well.
Got the Butterfly X920d today.
USB OTG working without hubs so far for: wireless USB keyboard and mouse, external storage, and most importantly for me USB AUDIO! Gamepads are a bust so far, but yet to try my gamepad (so far Logitech F310, PS3, Xbox 360 for Windows controller not working via USB OTG even with USB/BT controller, even the Wiiremote is not working over bluetooth when it did on my One X last year).
I can't wait for my USB OTG adapter I ordered from Amazon on 12/21/12 to finally get here off the slow boat from China (actually it's Japan I think)! lol estimated delivery still shows 1/18-2/5..but for $0.86 I cannot really complain.
bakemcbride21 said:
I can't wait for my USB OTG adapter I ordered from Amazon on 12/21/12 to finally get here off the slow boat from China (actually it's Japan I think)! lol estimated delivery still shows 1/18-2/5..but for $0.86 I cannot really complain.
Click to expand...
Click to collapse
The one i got from amazon just came yesterday. Worked with Sd card reader, will have to try to get a ps3 controller to work. Have no real need for it right now, but for 80 cents, might as well have it for when i do need something.
I've used a USB for a mouse and keyboard and SD card, yes SD must be FAT32 but I use a 32g card with no problems, streamed Movies at ease, between this, dnla and cloud I've got 8 gig free on my phone..
anyone figure out how to get the 360 to work?
Lights power on, but flashes and goes away when Android gives me a notification "Unable to charge"
Doesn't work with USB Stick Center, etc...
I can mount flash drives and such however
How could I enable USB OTG self powered mode?
c5satellite2 said:
It has the ability to do USB otg self powered, just not enabled. Kernel needs it enabled.
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
How could I enable USB OTG self powered mode?
I've been waiting for a reply to this since 2013. Almost 5ish years lol.
Vhwang said:
How could I enable USB OTG self powered mode?
Click to expand...
Click to collapse
Bud, I doubt anyone has very many functioning dna's at this point. But I would check out roms that support this out of the box at this point.
I'm not sure if this was discussed or brought up in any review/presentation i saw. I plugged my phone into my computer and i get the little windows pop-up this drive can perform faster if plugged into a 3.0 usb. I haven't tried it yet, since my 3.0s are behind my tower. Anyone notice or try this to confirm?
Darkestred said:
I'm not sure if this was discussed or brought up in any review/presentation i saw. I plugged my phone into my computer and i get the little windows pop-up this drive can perform faster if plugged into a 3.0 usb. I haven't tried it yet, since my 3.0s are behind my tower. Anyone notice or try this to confirm?
Click to expand...
Click to collapse
I've heard about this as well. But I don't see how it's possible since the G2 dosen't have a USB 3.0 Micro-B port. Compared to the Galaxy Note 3, which does.
I'm pretty sure people are seeing this message because the Snapdragon 800 chipset supports it. But the G2 does not actually have the circuitry for it.
WhiteZero said:
I've heard about this as well. But I don't see how it's possible since the G2 dosen't have a USB 3.0 Micro-B port. Compared to the Galaxy Note 3, which does.
LG's own spec only says 2.0, so I'm pretty sure people are seeing this message because the Snapdragon 800 chipset supports it. But the G2 does not actually have the circuitry for it.
Click to expand...
Click to collapse
you would be correct. Tested it out. Even plugging into 3.0 it still pops up that message and it still took 25 seconds for a 430meg file.
The USB port used on the LG G2 does indeed have extra pins that could be used for USB 3.0. If you look directly at the port, there is an additional 5 pins recessed behind the standard connector. As of yet I cannot figure out what they do, but they may be a proprietary connector for a custom slim USB 3.0 connection. They could also be for some other uses, such as video out or for connecting to accessories, but I don't know what.
whosdadog said:
The USB port used on the LG G2 does indeed have extra pins that could be used for USB 3.0. If you look directly at the port, there is an additional 5 pins recessed behind the standard connector. As of yet I cannot figure out what they do, but they may be a proprietary connector for a custom slim USB 3.0 connection. They could also be for some other uses, such as video out or for connecting to accessories, but I don't know what.
Click to expand...
Click to collapse
I was wondering what all the recessed pins were there for, I assumed some future lg accessory
randyspants said:
I was wondering what all the recessed pins were there for, I assumed some future lg accessory
Click to expand...
Click to collapse
Here's to hoping they see more use than the Galaxy Nexus' POGO pins.
I dunno, the official spec sheet shows USB 2.0.
LOOK: http://dl.xda-developers.com/attach.../9/5/Screen_Shot_2013-10-03_at_9.47.50_PM.jpg
Look at the bottom spec area.
Pics? No idea where you guys are looking.
Sent from my G2
Darkestred said:
I'm not sure if this was discussed or brought up in any review/presentation i saw. I plugged my phone into my computer and i get the little windows pop-up this drive can perform faster if plugged into a 3.0 usb. I haven't tried it yet, since my 3.0s are behind my tower. Anyone notice or try this to confirm?
Click to expand...
Click to collapse
Yeah, the same thing popped up on my laptop 2 days ago when I plugged it in. I've been wondering about this...
Sent from my LG-D801 using XDA Premium 4 mobile app
whosdadog said:
If you look directly at the port, there is an additional 5 pins recessed behind the standard connector.
Click to expand...
Click to collapse
I guess that it is HDMI pins
G2 is plenty fast compare to my previous Galaxy Nexus.
-LG G2
ddv2005 said:
I guess that it is HDMI pins
Click to expand...
Click to collapse
Slimport prob
I have tried it. First, plugged on USB 2, got error, then plugged it on USB 3 port, worked fine, no notification at all.
Haven't test if transfer speed meets USB 3 specification.
htcm7 said:
I have tried it. First, plugged on USB 2, got error, then plugged it on USB 3 port, worked fine, no notification at all.
Click to expand...
Click to collapse
What cable you have used? On stock cable I still got an error on USB3 port.
ddv2005 said:
What cable you have used? On stock cable I still got an error on USB3 port.
Click to expand...
Click to collapse
Stock cable.
The g2 has a usb 2.0 port on the phone. It won't support the faster transfer speeds or the faster charging of usb 3.0. It doesn't have the extra pins of micro usb 3.0.
Sent from my TouchPad using Tapatalk 4
ddv2005 said:
I guess that it is HDMI pins
Click to expand...
Click to collapse
If anything it would be SlimPort, which the phone does have, but I don't believe SlimPort uses any extra pins, just the normal micro USB 5.
Sushiglobster said:
I dunno, the official spec sheet shows USB 2.0.
LOOK: http://dl.xda-developers.com/attach.../9/5/Screen_Shot_2013-10-03_at_9.47.50_PM.jpg
Look at the bottom spec area.
Click to expand...
Click to collapse
The chipset fully supports USB3 standard as it has an integrated controller for it. When you plug into a computer the phone even gives a notification popup that it supports USB3 for faster transfer speeds. The port appears to be a USB2 port though, and a USB3 port would look like this:
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"lightbox_download": "Download",
"lightbox_share": "Share",
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Those extra pins probably have to do with HDMI output through the USB port as ddv2005 said.
EniGmA1987 said:
The chipset fully supports USB3 standard as it has an integrated controller for it. When you plug into a computer the phone even gives a notification popup that it supports USB3 for faster transfer speeds. The port appears to be a USB2 port though, and a USB3 port would look like this:
Those extra pins probably have to do with HDMI output through the USB port as ddv2005 said.
Click to expand...
Click to collapse
Exactly. USB 3.0 microUSB port is much wider than a USB 2.0 microUSB port. There is no way the LG G2 can support the speeds or charging of USB 3.0 with the current USB 2.0 port. That warning only comes up because the G2 contains the Snapdragon S800 chip that has USB 3.0 support.
I'm not sure you'll want or need USB 3, for the following reasons:
1. You won't want it for charging, because the faster you charge a Lithium-Ion battery, the quicker it dies. We all charge it overnight, so we have at least 5-6 hours for charging, and it needs much less.
2. You won't need it for file transfer, because most of us don't was to fuss with cables, and simply use wireless transfers. Not to mention the storage on the LG is so small (16 or 32GB), that there is simply not too much to move...