[Q] USB otg + charging? - Galaxy Tab 4 Q&A, Help & Troubleshooting

I have the galaxy tab 4 10.1 installed in the dash of my truck. I need to be able to charge and use USB otg at the same time. Is there any way to do this? I was able to use a USB otg Y cable to do this with my old nexus 7 bit it doesn't work on this tablet. I've tried googling for answers bit have found anything.
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jeb192004 said:
I have the galaxy tab 4 10.1 installed in the dash of my truck. I need to be able to charge and use USB otg at the same time. Is there any way to do this? I was able to use a USB otg Y cable to do this with my old nexus 7 bit it doesn't work on this tablet. I've tried googling for answers bit have found anything.
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Try the Lava Adapters: http://lavalink.com/products/samsun...bs-2/usb-otg-host-charge-adapter-tab4-tabpro/

Thanks. I'll give that a try.
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Just thought I would share what I found. Not sure if I will get in trouble for this but if you go to bestbuy's website and paste this at the end
site/samsung-usb-connection-kit/2837365.p?id=1218363393359&skuId=2837365
It brings you to a link of a usb host piece that is compatible with all samsung devices. I am thinking of buying one to test it out and would be happy to report back if it does work.

I bought the that Meditato posted. I can confirm that it works. Only prob I ran into tho is when removing the power and plugging it back in, the keyboard connected/disconnected flashes back and fourth. The keyboard does work while its doing that...
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Related

freedom pop

hi, is anyone using freedom pop with their nexus 7? it seems like an easy (and free!) way to get mobile data on the tablet. i guess you would need the little hotspot device, so it's two things to carry and charge.
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I actually managed to use the usb stick with an OTG cable. It just worked without any configuring.

[Q] connect nexus 4 to TV using USB

Hi, i'm using CM 10.1 and i'm trying to connect my phone to my TV using USB in order to see my media on it.
Is it possible nexus 4 with CM? or is it my TV?
i checked the android debugging in the developer options. Did i miss something else?
Slimport.
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And besides slimport?
There is Miracast Wireless Display but you have to buy the box itself for the TV which is around £50 and £100 so I would stick with Slimport which costs around £28 in total.
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I think your missing his point here.
He means his tv has a USB port which you can say plug a hard drive in & watch content stored on it.
My old tv had this functionality however it's not possible to do this with the nexus 4 as the storage is not mounted as a USB storage device.
Meaning the only way you can do what you ask is via a slimport adapter to use your phone as an HDMI input on your tv
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may be wrong but I remember reading somewhere that some newer Samsung TVs support MTP.

Regular OTG cable (not the Y type)

Did anyone manage to use a usb thumb drive with the regular OTG? I have one laying around in my room and AFAIK I need a custom rom to make the OTG feature to work. Since I am waiting for the official CM 10.2, I still run stock, I just wanna know if I have to buy the Y type...
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The Nexus 4 cannot output 5v through the micro USB port.
The Y cable is your only way.
Look for the one with a male and female micro USB also with a female USB.
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You should be able to use the cable you have but you would need to run it through a powered USB hub
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Can someone tell me if this could work with OTG on nexus 4?? http://viewitem.eim.ebay.gr/I9500-I...B-Host-OTG-HUB--CARD-READER/161105862553/item
no it will not the nexus 4 simply put does not put enough power out to power anything
OfficialTylerBig said:
no it will not the nexus 4 simply put does not put enough power out to power anything
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If you answer to my post i have to thank you but i also have to comment that this hub has AC plug in for power!!!
http://forum.xda-developers.com/showthread.php?t=2181820&page=80
Look at post #795. If your linked device is like marhensa's, it should work. However, it's hard to determine exactly.
Of course you need to flash ziddey's kernel for any OTG to work.
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USB Ethernet support for Nexus 4?

I have android 4.2 with the USB OTG kernel r165. Usb storage drives, mouse/keyboard and gamepads work however im trying to get a RD9700 ethernet adapter to work with no success
From what ive read the RD9700 is supported on android (albeit at usb1.1 speeds) and it should be as simple as turning wifi off, plugging it in and under settings a new 'ethernet' tab will show up. It doesnt, nor does doing a 'netcfg' in terminal emulator show any 'eth0' adapters.
Has anyone else tried an ethernet adapter? Is there some reason why it wont work on the Nexus4?
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No way im the only one whos tried this
Anyone?
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Millenium7 said:
No way im the only one whos tried this
Anyone?
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Hi, I'm wondering about this too. I got it to work on my Note 2 by compiling the kernel modules and the using 'insmod' to load them each time I needed to. I am thinking of changing to a Nexus 5 when they arrive, but USB ethernet is a must for me. Works out of the box on my N7, but sounds like it needs some work for the smaller nexus.

no usb host!!!

I have a nexus 7 WiFi 16 gig refurbished from wallmart. Using for a car install, tried 3 different otg cables confirmed working on n7 2013 and made my own cable with external power and no go. Host mode will not trigger. No mouse, USB ,SD........ I get no notification that host mode is entered. Tried USB ROM, vanir, cm11, bs harmony, stock, every kernel. Still get nothing. Any ideas? Have power and volume soldered to some momentary switches. Any ideas I was thinking of trying to trigger host by shorting the pins on the tablet itself! Bad idea? All connections in the tablet look good.I am at a loss. Any suggestions are appreciated!!
Download stickmount.
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What you are looking for is a kernel that provides simultaneous otg/host mode charging. Unfortunately, if you are running a rom newer than 4.2.2, you cant get it. All kernels that gave this capability were based on the work by Timur. He left that scene and never brought the hack to 4.3 +. If you install a 4.2.2 rom, you can still do it. If you google "Timur kernel" it will take you to his rootzwiki thread. He has a standalone kernel, or an entire rom dedicated to your very situation. Most people on the thread are car install users. Tons of great info there.
To the reply above me, the op is referring to being able to mount otg and charge at the same time, so stickmount would do no good.
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rebel1699 said:
What you are looking for is a kernel that provides simultaneous otg/host mode charging. Unfortunately, if you are running a rom newer than 4.2.2, you cant get it. All kernels that gave this capability were based on the work by Timur. He left that scene and never brought the hack to 4.3 +. If you install a 4.2.2 rom, you can still do it. If you google "Timur kernel" it will take you to his rootzwiki thread. He has a standalone kernel, or an entire rom dedicated to your very situation. Most people on the thread are car install users. Tons of great info there.
To the reply above me, the op is referring to being able to mount otg and charge at the same time, so stickmount would do no good.
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Isn't this a stock feature? My N7 in stock 4.4.2 has no OTG problems whatsoever, and provides energy without problrms.
No, not a stock feature. Exactly how are you charging and mounting otg simultaneously, cable wise?
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rebel1699 said:
No, not a stock feature. Exactly how are you charging and mounting otg simultaneously, cable wise?
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I use a generic OTG cable i got for like 5 bucks (it doesn't supply any kind of power). Mouse, gamepad and keyboards works as soon as i connect them. For drives and SD cards, i use Nexus Media Importer. All in stock ROM and kernel (4.4.2), without using root.
The op is referring to charging the N7, and connecting otg devices at the same time. The reason his otg is not working is because he connected the charging circuit first, which blocks host mode (otg functionality) from registering. The same happens if otg is hooked first, charging will not occur. It takes a kernel with those certain abilities to use otg and charge the n7 at the same time (host mode charging). Likewise, it takes a special cord, which has either 2 male usb and one female, or 1 micro usb, 1 male usb, and 1 female usb. Everything you need to know about this is here http://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
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tried it all
I have tried usb rom and stick mount,and nexus medis importer ect...... my problem is no usb host at all. not even a usb mouse. i have tried diffrent roms and kernels. i think maybe a hardware problem. i made my own usb host cable it works with my n7 2013 note 3 , but not my 2012 n7. nothing does. i also bought a few cables from amazon, no go. the tablet doesnt enter host mode. i tried usb diagostic app from chainfire. support is the for host in the kenels but host mode will not trigger.. just tring to see if anyone had similar issue and found a fix.. thanks for the suggestions.. kang-aroo kernel has timurs patches synced for 4.4.2 so does bricked and m kernel. OTG and charging IS NOT my issue, its no host at all. tablet will not recognize anything i plug in with external power or without....
As i thought the tablet was defective,recieved my new one no problems with usb host......
Awesome, glad you got it replaced. I use usb host mode charging, so I know how valuable it is. But, I am glad you posted your issue, because I was unaware of the existance of the kang-aroo kernel till you mentioned it. Running it on all 4 roms on my N7, and really happy with it.
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rebel1699 said:
Awesome, glad you got it replaced. I use usb host mode charging, so I know how valuable it is. But, I am glad you posted your issue, because I was unaware of the existance of the kang-aroo kernel till you mentioned it. Running it on all 4 roms on my N7, and really happy with it.
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Kangaroo is a great kernel , try oxydo has the same features but it also has doubletap2wake and s2w it's not enabled by default but trickster mod will turn it on or by editing a few files in the sys folder.In the kangaroo thread there is a manager app like USB rom has for a car install. Works on both kernels. Are you using multirom. I haven't tried it yet. Any issues?
Been using multirom since it was released over a year ago, and never had an issue. I cant imagine my N7 without it.
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