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Hello,
Can you have USB OTG and phone charging at the same time? Or even better: HDMI + USB OTG + charging? Without power the phone discharges fast, not to mention - with HDMI out connected I won't be able to connect external HD with movies... Oh, bother...
Or is there some magic do-it-all dongle?
I need it too .
I hate some cable in my bag. One Cable for all is great
USB OTG does not support charging as it has to supply current to the external device.
MHL (HDMI output) does.
Dude, I really hope I'm not misunderstanding, but what is the problem to which 'USB OTG and charging at the same time' is the solution?
Surely you pop your USB stick in, transfer the file and then... stick the charger/HDMI cable back in... and stream wirelessly/over your network?
What were you hoping to achieve? There are several options...
Just taking a guess... maybe he wants to use keyboard and mouse etc with his phone, desktop style
Sent from my GT-I9100 using XDA App
Or maybe I just want to play anything from my 1TB HD WITHOUT deciding what should I copy to my phone (which is a waste of time...)
ssuukk said:
Or maybe I just want to play anything from my 1TB HD WITHOUT deciding what should I copy to my phone (which is a waste of time...)
Click to expand...
Click to collapse
I wanted to do the same thing but it isn't possible . I do however stream from my nas if I don't want to copy stuff to the phone.
Technically, the USB-OTG standard includes provisions for handling this.
There are several occasions where you would want to plug an accessory into a USB-OTG port and still be able to hold the state-of-charge in the host device.
The specific document: Battery Charging Specification, rev 1.2
ACA subsection (Accessory Charger Adapter)
The ID_OTG pin acts as an input in this mode of operating, indicating whether or not the host is allowed to charge.
Figure 6-6 shows the typical architecture.
Sounds promising. I will look into that! Thanx.
Any news on this?? :fingers-crossed:
so can we use otg and mhl at the same time without charging
Yes, this is pretty much possible. I have implemented the aforementioned OTG ACA support and got it to CyanogenMod9 upstream. Anything which uses the same kernel (or, if you can cherry-pick changes and compile your own kernels), could use that too. Changeset URL: _ttp://review.cyanogenmod.com/#/c/15850/
You need to use a regular USB OTG cable, but place a 36 KOhm resistor between ID pin and GND, then you should connect GND and Vdd to some power source. I used an MHL adapter which I had no use for, as it had two of three connectors I needed. This setup allows me to watch movies from 2.5" notebook hard drive while simultaneously charging my phone if I plug in a 2A-rated adapter. Note that it's impossible to use 650mA charging rate due to chip restrictions (USB HC is too stupid to understand the direction of current flow, and it reports an over-current condition); you have to settle on 450mA.
If you don't know how to solder, or if you use something else than CyanogenMod9 and cannot compile your own kernels, you are out of luck.
I have tried to find an existing USB OTG ACA dongle, but I was not able to find any. If you will be more lucky than me, you can just use it--my patch is compliant with USB specification and will support any compatible dongle.
It's possible.
You need cable y usb. I did it myself.
http://a2.sphotos.ak.fbcdn.net/hphotos-ak-snc6/s720x720/206110_371488136240210_1887794367_n.jpg
watch icon battery
What parts do I need?
wojtaz131 said:
It's possible.
You need cable y usb. I did it myself.
http://a2.sphotos.ak.fbcdn.net/hphotos-ak-snc6/s720x720/206110_371488136240210_1887794367_n.jpg
watch icon battery
Click to expand...
Click to collapse
What specific parts did you use for your OTG / Power Y
The ability to charge my device while playing video off a usb flashdrive is my goal for this.
ZedZardoz said:
What specific parts did you use for your OTG / Power Y
The ability to charge my device while playing video off a usb flashdrive is my goal for this.
Click to expand...
Click to collapse
A few wires. See my post above for the details.
whitequark said:
Yes, this is pretty much possible. I have implemented the aforementioned OTG ACA support and got it to CyanogenMod9 upstream. Anything which uses the same kernel (or, if you can cherry-pick changes and compile your own kernels), could use that too. Changeset URL: _ttp://review.cyanogenmod.com/#/c/15850/
You need to use a regular USB OTG cable, but place a 36 KOhm resistor between ID pin and GND, then you should connect GND and Vdd to some power source. I used an MHL adapter which I had no use for, as it had two of three connectors I needed. This setup allows me to watch movies from 2.5" notebook hard drive while simultaneously charging my phone if I plug in a 2A-rated adapter. Note that it's impossible to use 650mA charging rate due to chip restrictions (USB HC is too stupid to understand the direction of current flow, and it reports an over-current condition); you have to settle on 450mA.
If you don't know how to solder, or if you use something else than CyanogenMod9 and cannot compile your own kernels, you are out of luck.
I have tried to find an existing USB OTG ACA dongle, but I was not able to find any. If you will be more lucky than me, you can just use it--my patch is compliant with USB specification and will support any compatible dongle.
Click to expand...
Click to collapse
Duh, I read right past this post... 36KOhm on ID <<< got it, now to experiment!
wow!
it would be amazing if such a device existed!
Hello,
I'm new to this forum as i didn't need it yet but now I have a question.
I know this thread is kind of old and I'm not sure if there are still (m)any people using a GT-I9100... though it would be interesting if anyone found a solution on this topic.
I read several threads where people were discussion if charging and OTG is possible at the same time but no one could verify a specific resistor. Actually i tried a resistor valued 124k between GND and ID but it didn't work. I also read about 36k and other values but nothing verified. Could take a while to try several resistors but i really no one knows a solution i'd try this
So just so sum up, i don't need "MHL and charging" or "audio out and charging". The mode i'm looking for is "OTG and charging".
My Goal: a Docking Station with mouse, keyboard, flash drive(s) and charging to remote control my computer with a software like splashtop.
Hopefully anyone has useful information on this, thanks a lot for any kind of support
burnsn said:
So just so sum up, i don't need "MHL and charging" or "audio out and charging". The mode i'm looking for is "OTG and charging".
Click to expand...
Click to collapse
You need a kernel patch to make it work. See http://forum.xda-developers.com/showpost.php?p=30141914&postcount=12
whitequark said:
You need a kernel patch to make it work. See http://forum.xda-developers.com/showpost.php?p=30141914&postcount=12
Click to expand...
Click to collapse
Thanks for your answer!
Today i made my 36k cable, this weekend i should have some time for the kernel patch - hopefully
I still have some questions about the kernel as i didn't use any custom ROMs etc on my phone. All I have is a "standard" root kernel without any further changes but root. Need some hours to read into this. What i didn't understand: Do I have to use a specific CM9 or can i use any CM9 (or maybe CM10 or any other CM past 9)?
I wasn't able to get the link working "_ttp://review.cyanogenmod.com/#/c/15850/" when replacing "_" with "h". What can I find on that page?
Hello friends, I am new to this forum, but certainly not new to the tablet world. I purchased the iconia a100 a few weeks ago and I must say it is a superb tablet in almost everyway. That being said, I am trying to come up with a solution for the lacking usb host on this tablet. I am certainly not a dev, but I am wondering if there is anything in the works for a working usb host? Does anyone know if acer has any plans to offer an adapter or even a different docking station with the usb host working from the 40 pin? If anyone has any ideas or would like to start a project i will be glad to help in anyway I can. While i was researching this usb host problem i see that there was a very sinilar situation with the galaxy which has since been resolved. Any suggestions? Thanks
Not yet possible, but you can pretty much count on it to be baked into a custom ROM when we get the ability to fully unlock and root this device. Root is already possible, and done. Unfortunately, we cant really do much development on it right now due to the encrypted bootloader. Most devs are waiting for the ics update in January to get the ball rolling on tweaks and hacks to the a100.
Sit tight, they'll have you up and running in no time
ummmmm............ could you repeat that?
This is also #1 on my wishlist. However, I don't know if that is even possible with a custom ROM; it requires the hardware to support it and I don't recall seeing any teardown that states that it would be possible.
I've seen it done in various phones, but don't know if its been posted on any here, but I'm sure a search on the forum would help find them. Its a matter of reconfiguring the port in the programming and getting an adapter from micro USB to standard USB.
But don't quote me on any of this, I could be mistaken with other devices. There has been talk about USB hosting on the a100 before.
ummmmm............ could you repeat that?
Yes, you would need something called an OTG (on the go) adapter. The hardware in the device has to support host, so it is not JUST software.
I can confirm that i have tried the otg adapter as well as other adapters...and it only works as slave. I would just like someone to confirm that usb host is possible [that the harware supports host capabilities]. I am just glad to see there are more people interested in fixing this problem as this tablet is superfast and top quality in every other way in my opinion. Thanks again
Maybe something comes out of
http://www.circuitsathome.com/mcu/programming/android_adk_compatible_usb_host_library_release
I ordered an OTG cable and once it comes I will take a look at enabling USB host mode.
I am guessing that the hardware supports USB host, but will need a kernel module and some scripts to enable it.
I also suspect that the USB port will not supply power to an attached device. If this is the case, the workaround is to attach a powered USB hub to the OTG cable.
Crossing my fingers, and waiting for that OTG cable to come in the mail...
flar2 said:
I ordered an OTG cable and once it comes I will take a look at enabling USB host mode.
I am guessing that the hardware supports USB host, but will need a kernel module and some scripts to enable it.
I also suspect that the USB port will not supply power to an attached device. If this is the case, the workaround is to attach a powered USB hub to the OTG cable.
Crossing my fingers, and waiting for that OTG cable to come in the mail...
Click to expand...
Click to collapse
USB host is enabled in the kernel. Hardware does support USB host.
Acer left it off the board entirely, so I doubt much can be done without hardware modding, which I'm all for lol.
Tapatalked from my Galaxy S II.
Sounds grim if the hardware connection is not there, are we sure that the port is just not supplying power?
do the kernel modules load? (e.g. usb-hid, usb-storage)
Has anyone actually tried to:
a) insmod the correct modules
b) force change to host mode (the device probably has to be either slave or host, not both at once)
c) connect something (e.g. a mouse or a thumbdrive) through the otg cable and a powered usb hub?
At least I won't have to build a kernel to test this out.
flar2 said:
Sounds grim if the hardware connection is not there, are we sure that the port is just not supplying power?
do the kernel modules load? (e.g. usb-hid, usb-storage)
Has anyone actually tried to:
a) insmod the correct modules
b) force change to host mode (the device probably has to be either slave or host, not both at once)
c) connect something (e.g. a mouse or a thumbdrive) through the otg cable and a powered usb hub?
At least I won't have to build a kernel to test this out.
Click to expand...
Click to collapse
I know this comes up every now and then, I really dont know how far anyone gets before giving up. Feel free to try out whatever you want, while I don't care about USB host I know a lot of people do and would love an update on any progress anyone can make. Even if its just things that don't work.
Acer is generally lazy and cheap, we use the same kernel source as the a500 which has host, which is why we also have it. It could be modules, though I doubt its so simple. Also a powered hub would be needed, there is no power supplied to the port that anyone has found. This could be remedied with some hardware work I'm sure. The hub would also need to be one way, meaning not dumping power to host as I doubt the a100 will take it and without protection would likely suffer damage if the power pins are even hooked up.
The system itself runs at 12v though I'm sure there's a 5v rail someplace but if it can support powering anything past maybe a flash drive is unknown.
Take a visit to iconia-dev on free node, they'll know more of this then probably anyone here does lol
Tapatalked from my Galaxy S II.
The A500 does not implement USB otg, but rather a standard USB port. In other words, USB otg is not necessary for the A500 since it has a standard port. The USB otg standard allows a the port to act as both master and slave depending on the connection. In the A100 service manual, the schematic shows only one connection to the chipset (client), host is unconnected, which could be a problem. However, it is known that the Tegra 2 can support otg connections. I'm not certain, but it may be possible that by shorting pins 4 and 5 in the micro usb connector (ie, using an otg cable) and with the proper kernel level support, the A100 could still act as a USB host, albeit with no power supply to the micro USB port.
I'll continue to investigate this once I have a chance to build otg support into the kernel and recieve the otg cable.
flar2 said:
The A500 does not implement USB otg, but rather a standard USB port. In other words, USB otg is not necessary for the A500 since it has a standard port. The USB otg standard allows a the port to act as both master and slave depending on the connection. In the A100 service manual, the schematic shows only one connection to the chipset (client), host is unconnected, which could be a problem. However, it is known that the Tegra 2 can support otg connections. I'm not certain, but it may be possible that by shorting pins 4 and 5 in the micro usb connector (ie, using an otg cable) and with the proper kernel level support, the A100 could still act as a USB host, albeit with no power supply to the micro USB port.
I'll continue to investigate this once I have a chance to build otg support into the kernel and recieve the otg cable.
Click to expand...
Click to collapse
Thanks for that, but one thing, its already in the kernel. However Linux society and/or waydownsouth would know more about what's in there, I just know it isn't blocked there. Modules etc I don't know. I look forward to seeing some progress on this topic.
Tapatalked from my Galaxy S II.
Pulled the kernel config from my tablet, you are correct, otg support is built into the kernel.
I'm using ezterry's kernel, almost everything is built in, there are only a few modules that have nothing to do with this.
I tested with an OTG cable, which shorts pins 4 and 5 in the micro usb connector. As expected, this did not enable USB host mode.
I tested wtih 5V going into the micro usb connection, as some of the non-powered devices need that voltage applied to activate the port, still nothing. (and no damage!)
I added a few other things to the kernel, the dmesg output changed slightly compared ezterry kernel
When connecting otg cable with 5V, dmesg shows:
tegra-otg tegra-otg: SUSPEND --> PERHIPHERAL
vbus connected, lock wakelock
tegra-otg tegra-otg: PERHIPHERAL --> SUSPEND
tegra_usb_phy_power_off(inst:0), phy->regulator_on: 1, line : 2754
tegra_usb_phy_power_off(inst:0), tegra_get_revision(): 0
vbus disconnected, unlock wakelock
android_work: did not send uevent (0 0 (null))
In the possibility that USB host is not possible on the micro usb port, a hardware mod could be done. There are points for a mini PCI-E connector on the motherboard (this is where the 3G module would be for A101). Solder wires to pins 36 and 38 for USB data, 4 for ground and connect them to a usb port. The PCI-E only gives 3.3V, but power could be supplied by a powered hub instead. There is even space inside the unit to mount a micro usb connector on the end with the power button.
The main roadblock is that the solder points are on the back side of the pcboard so you have to fully disassemble the unit to remove the motherboard. It would actually be fairly easy to do if the points were showing when you remove the back cover.
I don't think I have the nerve to actually try this.
flar2 said:
In the possibility that USB host is not possible on the micro usb port, a hardware mod could be done. There are points for a mini PCI-E connector on the motherboard (this is where the 3G module would be for A101). Solder wires to pins 36 and 38 for USB data, 4 for ground and connect them to a usb port. The PCI-E only gives 3.3V, but power could be supplied by a powered hub instead. There is even space inside the unit to mount a micro usb connector on the end with the power button.
The main roadblock is that the solder points are on the back side of the pcboard so you have to fully disassemble the unit to remove the motherboard. It would actually be fairly easy to do if the points were showing when you remove the back cover.
I don't think I have the nerve to actually try this.
Click to expand...
Click to collapse
Well if you want to play it like that, you can use a mini pci-e > usb adapter, which is also available with and without sata too lol. It would, maybe, depending on the board used, even line up with the sim slot, so minimal case cutting would be needed to make it accessible for usb. Straight drop in for an A101, though we lack the actual slot for it. Might be something I'll try later on.
Edit: I forget, does the sim slot line up with the pci-e slot? Been awhile since I saw the inside of one, so I may be wrong on that point.
There isn't an actual mini pci-e connector in my tab, it's just the solder points, so you would have to solder on a connector to use the adapter. The sim slot doesn't line up. But it looks like the empty sim slot is not high enough for a micro usb port to fit anyway.
I tried the hardware mod. Unfortunately the mini pci-e is not hooked up to the system. In other news, the motherboard is very easy to remove and reinstall.
there is a ROM in which they have implemented the usb otg?
Inviato dal mio Galaxy Nexus con Tapatalk 2
after searching a little bit about 11 pin port in galaxy s3 and take apart an 11pin to 5 pin adapter i am thinking about make DIY smart dock for galaxy s3
i ordered mhl adapter and waiting for it mean while i tried to connect usb otg and extra micro usb connector together so i can use otg and charge the phone at the same time. but the problem is when i short ground and seance pin for otg ; charging doesn't work.
so any suggestion about the project?
i attached a plan of my project here
edited:after failing my 1st attempt i succeeded to make it work on my 2nd try!
this time i opened a 11 pin to 5 pin adapter. it has a small resistor which is connected ground to sense pin for hdmi out put. i removed that resistor and i connected 5 extra wire in the adapter 1. vcc 2. data+ 3. data - 4. sense 5. ground ( i showed in picture) . then i connected sense and ground with a 40.2k resistor.
then the 4 wire, which i i connected in 11 to 5 pin adapter (vcc, data+,data-, and ground) , goes to a femele usb where you will connect usb devices or usb hub.
and thats it!! hope you can try it too. if if have any other question just ask me
http://www.youtube.com/watch?v=EFzX6NlKJBU&feature=youtu.be
if anyone want to donate to help me with more projects click the link below
https://www.paypal.com/cgi-bin/webs...&bn=PP-BuyNowBF:btn_buynowCC_LG.gif:NonHosted
AW: diy smardock for galaxy s3
You forgot the vcc at the otg side, but anyway it can't work.
While charging you send 5v through the micro usb to the phone.
But in otg mode the phone will send 5v to the usb connector to supply power for the connected device.
I think your only chance is to use the inductive connectors to charge your phone while in otg mode.
Sent from my GT-P5110 using xda premium
i uploaded the corrected one
and i found this
http://forum.xda-developers.com/showthread.php?t=1953061
but my knowledge about this stuff is little low. so need some explanation
thanks
AW: diy smart dock for galaxy s3
There seems no way like you want it. I told you the problem.
You have to use the Pins for the wireless charger (QI-charger) under the battery cover.
Sent from my GT-P5110 using xda premium
G4Cab said:
There seems no way like you want it. I told you the problem.
You have to use the Pins for the wireless charger (QI-charger) under the battery cover.
Sent from my GT-P5110 using xda premium
Click to expand...
Click to collapse
charging via the back pins while in OTG mode with throw a message popup that says over current protection and shuts down the S3
at least it does on mine.
I have the smart dock and after opening, it does contain quite a bit of electronics
NuclearEMP said:
charging via the back pins while in OTG mode with throw a message popup that says over current protection and shuts down the S3
at least it does on mine.
I have the smart dock and after opening, it does contain quite a bit of electronics
Click to expand...
Click to collapse
would you mind taking a few pictures of the smartdock guts so the rest of us tech savvy people can drool at its wonders?
here is a few of the Note 2 Smart Dock internals
NuclearEMP said:
here is a few of the Note 2 Smart Dock internals
Click to expand...
Click to collapse
you frelling rock!
---------- Post added at 12:28 PM ---------- Previous post was at 11:59 AM ----------
I have a suspicion that the IC to the left of the Realtek one is the brains of the board. The RT chip does the hdmi out conversion and the other two longer IC's are usb host and usb audio. Can't make out the printed data on the unknown chip, but my best bet is if we can get a dump of whats on there then we might have a good chance of DIY hdmi/otg capabilities. i'm no expert by far, but just throwing ideas out there.
wolfy02 said:
you frelling rock!
---------- Post added at 12:28 PM ---------- Previous post was at 11:59 AM ----------
I have a suspicion that the IC to the left of the Realtek one is the brains of the board. The RT chip does the hdmi out conversion and the other two longer IC's are usb host and usb audio. Can't make out the printed data on the unknown chip, but my best bet is if we can get a dump of whats on there then we might have a good chance of DIY hdmi/otg capabilities. i'm no expert by far, but just throwing ideas out there.
Click to expand...
Click to collapse
Heres whats inside, including the "other chip"
SiI9292 MHL-to-HDMI Bridge
The SiI9292 is integral to the design of low-power, MHL-to-HDMI accessory devices such as docking stations, converters and adapters, enabling HD video and audio connectivity between MHL-ready mobile devices and HDTVs with HDMI inputs.
-------------------------
Realtek RTD2120
Overview
This chip is the micro-processor of LCD monitor. It uses the design ware DW8051 of Synopsys as the 8051 core of this chip and is compatible with other industry 8051 series. Also, 96Kbyte FLASH with 8 bit bus is embedded in this chip which is licensed from TSMC 0.18um e-FLASH process. Here we use the package of PLCC44/LQFP48 if we would like to have a discrete MCU controller or we make a multi-chip package with our LCD monitor controller to form one chip package to save the cost of package and PCB material.
Features
? Operating voltage range : 3.0V to 3.6V
? 8051 core, CPU operating frequency up to 50MHz
? 4 clocks per machine cycle
? 256-byte internal RAM
? 512-byte external data RAM, including 256-byte DDC RAM(128-byte x 2) and 256-byte general purpose RAM
? 96K-byte flash memory, 64k for program and 32k for saving parameter
? Two DDC ports compliant with VESA DDC1/2B/2Bi/CI
? Three channels of PWM DAC with programable frequency from 100K to 100Hz
? Watchdog timer with programmable interval
? Three 16-bit counters/timers (T0, T1, and T2)
? One PLL to provide programmable operating frequency and clock output, 2 clock output ports
? One full-duplex serial port
? Six interrupt sources with 2 external interrupts
? Four channels of 6-bit ADC
? Hardware In System Programming(ISP) capability, no boot code required
? Built-in Low voltage reset circuit
? Embedded 1.8V regulator
? Code protection
? Available in 44-pin PLCC or 48-pin LQFP package
----------------------------
FE1.1S
USB 2.0 HIGH SPEED 4-PORT HUB CONTROLLER
--------------------------------------------------
The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-compliant full-speed protocol controller and S/PDIF.
-------------------------------------
otg + charging success
hi guys! just want to give an update of my work.
i got otg and charging work together.
as in this post http://forum.xda-developers.com/showthread.php?t=1953061 i just connect ground and sense pin with a 40.2 k ohm resistor.
i ordered 40.2 k ohm resistor which i just got tonight. the hdmi adapter i have is a cheap and old one. its not mirroring the screen. i ordered a new Rocketfish MHL HDTV Adapter . hope that will work!! waiting for that to arrive!!!!
here i am giving 2 screen shot
mess lol
and here what i did so far....
i didnt connect micro usb female port for data sync because those i didnt get yet.
if anyone have any suggestion please tell me.
hoping to make it work.....
necomer said:
and here what i did so far....
i didnt connect micro usb female port for data sync because those i didnt get yet.
if anyone have any suggestion please tell me.
hoping to make it work.....
Click to expand...
Click to collapse
Great work, necomer. I've also been trying that for two months now, but haven't been able to make it work. I have the 40,2 KOhm resistor between sense and GND, and am able to launch smart dock mode on some ROMs I have tried. So, which ROM are you running? My only idea here is that maybe you having a US S3 is what does the difference (well, I'm assuming that, maybe you have an international one).
Thanks in advance, and once again, great work :good:
Hi. Thanks for reviewing I am using us galaxy s3 and just the stock touch wiz rom android 4.1.1.
And I received my mhl adapter. But when I am connecting it the tv screen going all black. Any suggestion about that?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
necomer said:
Hi. Thanks for reviewing I am using us galaxy s3 and just the stock touch wiz rom android 4.1.1.
And I received my mhl adapter. But when I am connecting it the tv screen going all black. Any suggestion about that?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
I'm pretty sure your buying the wrong MHL adapter. The Note II and the s3 have a different micro usb than any other phone and require the samsung
MHL adapter.
Not sure what you are trying to do?
Amazon sells a combo cable so you can use OTG and charge the device at the same time. I use it to connect a 1TB portable drive to my S3 and Tab 2 10.1.
I bought the official Samsung HDMI adapters for both devices. They are powered and stream over HDMI to my TV just fine. Works with just about everything I've tried although some services require some workarounds. Copy protection crap.
What you are trying to do sounds risky. You might fry the phone.
I apologize if I haven't grasped your intentions but I'm kind of slow.
Edit: I think I may get it now. Are you trying to power, feed external data through OTG and then stream out to an HDMI display?
Dumb question as I said I'm slow but, how about the official Samsung HDMI adapter and use the power in port with a powered OTG combo cable?
This one:
http://www.amazon.com/gp/product/B003WV5DMO/ref=oh_details_o04_s00_i00?ie=UTF8&psc=1
Logunn said:
I'm pretty sure your buying the wrong MHL adapter. The Note II and the s3 have a different micro usb than any other phone and require the samsung
MHL adapter.
Click to expand...
Click to collapse
i used a 11 pin to 5 pin convertor. but i guess i did something wrong while connecting the wires .
i will order new 11 pin to 5 pin adapter bcz i messed up this one
schneid said:
Not sure what you are trying to do?
Amazon sells a combo cable so you can use OTG and charge the device at the same time. I use it to connect a 1TB portable drive to my S3 and Tab 2 10.1.
I bought the official Samsung HDMI adapters for both devices. They are powered and stream over HDMI to my TV just fine. Works with just about everything I've tried although some services require some workarounds. Copy protection crap.
What you are trying to do sounds risky. You might fry the phone.
I apologize if I haven't grasped your intentions but I'm kind of slow.
Edit: I think I may get it now. Are you trying to power, feed external data through OTG and then stream out to an HDMI display?
Dumb question as I said I'm slow but, how about the official Samsung HDMI adapter and use the power in port with a powered OTG combo cable?
This one:
http://www.amazon.com/gp/product/B003WV5DMO/ref=oh_details_o04_s00_i00?ie=UTF8&psc=1
Click to expand...
Click to collapse
what i am trying to do is, use otg , charge the phone and use hdmi at the same time. i thought it would be easy bcz samsung made new 11 pin connector in Galaxy s3 . so apparently its supposed to work ,as they are not using same pin for transferring data. But i dont have any idea about internal proses. while charging and otg at the same time is possible, dont you think we can connect hdmi with it in any way?
well all this is just guessing from my little knowledge. i want some suggestion from those who worked on this and correct my mistakes
necomer said:
Hi. Thanks for reviewing I am using us galaxy s3 and just the stock touch wiz rom android 4.1.1.
And I received my mhl adapter. But when I am connecting it the tv screen going all black. Any suggestion about that?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Maybe... it's a HDCP problem...
If your TV don't support HDCP function(or authentication failed), then MHL chipset will show a black screen
(HDCP : High-definition Digital Content Protection)
I was going to this topic, being all hopeful that I finally might get my S3 in OTG+Charge mode. And then it turned out it only worked on a phone still running 4.1.1. I have 4.1.2, and OTG+charge did work for me before, but it seems Samsung broke it in 4.1.2. It is probably the fault of the kernel that came with the XXELLC (a stock 4.1.2 ROM) update, but how to fix it is beyond me.
Are you serious! I won't update mine then. I need to use that together! !!
Thanks for the information
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Hello there,
I've got myself an OTG cable, and if I connect a mouse, it works.
If I connect a keyboard it works.
And now I connect them both with a usb hub, doesn't work?
How can I solve this?
I've got already an OTG helper app.
Usb hub is a sitecom cn-060 and I'm on the galaxy note n7000
Anyone?
dwdw1998 said:
Anyone?
Click to expand...
Click to collapse
I've been diggin in the USB OTG feature as well.
Idk if you're question's been answered, but My best guess is that you're gonna need either an MHL with external USB port to provide power, which you can keep the pin arrangement standard, but it'll only work if powered by an A/C charger, or if you splice it and isolate the data +/- pins, then it'll still work if plugged into a computer or something of the sort...
There's some guides here on XDA that I've read, and ended up making my own, which seems to work better than the one I've gotten in the mail.
ANOTHER Solution, however... Use a POWERED USB hub, sourcing from your OTG cable..?
Cause I'm assuming that your device is capable of powering EITHER the Keyboard, OR the mouse, not both...
So providing power via powered usb hub should render them both active, and usable by your device...?
Idk, just figured I'd put it out there to ya.
If it helps, hit the thanks button!
M1k3Carson1369 said:
I've been diggin in the USB OTG feature as well.
Idk if you're question's been answered, but My best guess is that you're gonna need either an MHL with external USB port to provide power, which you can keep the pin arrangement standard, but it'll only work if powered by an A/C charger, or if you splice it and isolate the data +/- pins, then it'll still work if plugged into a computer or something of the sort...
There's some guides here on XDA that I've read, and ended up making my own, which seems to work better than the one I've gotten in the mail.
ANOTHER Solution, however... Use a POWERED USB hub, sourcing from your OTG cable..?
Cause I'm assuming that your device is capable of powering EITHER the Keyboard, OR the mouse, not both...
So providing power via powered usb hub should render them both active, and usable by your device...?
Idk, just figured I'd put it out there to ya.
If it helps, hit the thanks button!
Click to expand...
Click to collapse
Ah thanks!
But my usb hub is already powered? And the first solution, I don't get it haha xD
Here, this should help....
dwdw1998 said:
Ah thanks!
But my usb hub is already powered? And the first solution, I don't get it haha xD
Click to expand...
Click to collapse
Here's a pic of my OTG+PWRD-HUB setup...
And I took it to paint.exe and tried to outline it / highlight the important parts in the pic...
My paint skills are far from honed... =/
Also, sometimes you have to
plug/unplug OTG from phone,
and sometimes you
gotta switch the
order of the
2nd+3rd steps...
It Varies...
And if you have ROOT, which I'm gonna assume you do, KERNEL TUNER is a GREAT app, and in this scenario it helps me out too... if you don't know about it [forgive me if you do] it has a "MISC" section, where you can actually enable OTG over a regular USB Cable [My guess is it grounds the bus for the ID-Pin on the microUSB plug] which can be helpful in determining certain issues with OTG [make sure Fast Charge is disabled, for good measure, both in app and in ROM]...
Using that feature of Kernel Tuner in conjunction with ChainFire's "USB Host Diagnostics" app can REALLY help you narrow down and pinpoint the finer details of your scenarios. =]
That's mainly just for the sake of verification.
At one point in time I thought my old HUB was powered too, just cause when I used it with my laptop, the thumbdrives I plugged into lit up, lol.
But if your setup is similar, then the only thing I can think of that might be holding you down is the order in which you connect everything?
Idk, I'm no Dev [FAR from it], but I figured I'd put that out there, since this thread was up.
Didn't look like it was being deleted, and noone directed you to the USB OTG Help Threads in this Forum.
[I would have directed you, but as mentioned, Idk where they are, Haha]
M1k3Carson1369 said:
That's mainly just for the sake of verification.
At one point in time I thought my old HUB was powered too, just cause when I used it with my laptop, the thumbdrives I plugged into lit up, lol.
But if your setup is similar, then the only thing I can think of that might be holding you down is the order in which you connect everything?
Idk, I'm no Dev [FAR from it], but I figured I'd put that out there, since this thread was up.
Didn't look like it was being deleted, and noone directed you to the USB OTG Help Threads in this Forum.
[I would have directed you, but as mentioned, Idk where they are, Haha]
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Click to collapse
hey thanks a lot...
aaronlee1979 said:
hey thanks a lot...
Click to expand...
Click to collapse
Anytime, gladly. Remember to hit the thanks button!
tried everything you guys said. but still not working ;s
I've got a Note 10.1 2014 mounted in the dash of my truck to replace the radio and am on a mission to figure out how to get USB OTG to work with charging. I've read an ocean of threads regarding hacking MHL adapters, but there is not any information specific to the Note 10.1 2014.
Right now I've got a relay system in the dash that switches between a OTG cable and a charge cable depending if the ignition is on or off. This works for my basic purposes, but if I use GPS navigation and wifi tethering, I run the battery pretty low after only 3-4 hours. When I turn off the truck it begins charging, but that wont work for a road trip.
I've tried the Samsung smart dock (without reading that it wouldn't work), and of course, it doesn't work, although it would be the perfect solution.
My idea is that there would be some way to use the 11 pin MHL connector on the device to get what I'm after. Looking at the pinout, it seems that there are some USB host pins within the 6 additional MHL pins, but I do not know of anyone who has tapped into them and had OTG working.
Is anyone else trying to get this to work on a Note 10.1 2014? I'm happy to hack up and solder anything and everything imaginable to give it a try, but I'd like to collaborate about it and see if we as a group can get this working.
Im about ready to rip apart my smartdock and see exactly why it wont work with this tablet.... have no idea why it qont recognise the tablet...
morgancole said:
I've got a Note 10.1 2014 mounted in the dash of my truck to replace the radio and am on a mission to figure out how to get USB OTG to work with charging. I've read an ocean of threads regarding hacking MHL adapters, but there is not any information specific to the Note 10.1 2014.
Right now I've got a relay system in the dash that switches between a OTG cable and a charge cable depending if the ignition is on or off. This works for my basic purposes, but if I use GPS navigation and wifi tethering, I run the battery pretty low after only 3-4 hours. When I turn off the truck it begins charging, but that wont work for a road trip.
I've tried the Samsung smart dock (without reading that it wouldn't work), and of course, it doesn't work, although it would be the perfect solution.
My idea is that there would be some way to use the 11 pin MHL connector on the device to get what I'm after. Looking at the pinout, it seems that there are some USB host pins within the 6 additional MHL pins, but I do not know of anyone who has tapped into them and had OTG working.
Is anyone else trying to get this to work on a Note 10.1 2014? I'm happy to hack up and solder anything and everything imaginable to give it a try, but I'd like to collaborate about it and see if we as a group can get this working.
Click to expand...
Click to collapse
Man, you really gotta get us a screenie of this! That's bad ass.
Sent from my SM-P600 using XDA Premium 4 mobile app
Meanwhile, is there a possibility for that knock-out?
High current charging has an impact on the signal lines. So USB 2.0 current is limited to 500mA, or probably the 900mA from USB3, if the port can provide it. On a standard USB2 port the Note remains self-powered. And even with 900mA it will slowly discharge while in use, despite the battery charging at max current. On a 2A charger, the operating power bypasses the battery, which is much more healthy for it.
Thank you for your reply. Unfortunately I asked imprecise. What I liked to ask is, if there is meanwhile a possibility to charge the tablet while using the usb connection e.g. with an external hard disk?
Almost certainly not. Samsung could have provided a charger jack, or even support wireless charging. But it was not meant to be.
I just tried one of the charge and 2 female usb adapters off ebay and it didnt charge. It detected the usb connectors connection, but wouldnt charge.
$5 lost...
Did you used the wall plug? Because the tab needs 2A for charging...
sent from htc one...
Why not take away the USB requirement? I assume you want this to allow external storage, in this case get some sort of NAS that can be 12V powered and install that in your truck then allow the Note to connect to this via Wifi, then the USB port can be dedicated entirely for charging only.
Plus you have the benefit that when at home you can transfer file to your NAS without needing to leave you PC.
nas item
atunguyd said:
Why not take away the USB requirement? I assume you want this to allow external storage, in this case get some sort of NAS that can be 12V powered and install that in your truck then allow the Note to connect to this via Wifi, then the USB port can be dedicated entirely for charging only.
Plus you have the benefit that when at home you can transfer file to your NAS without needing to leave you PC.
Click to expand...
Click to collapse
Check out ravPower wireless hub. Just ordered one since my otg hub quit working. It can charge and store with sd card. Will post when it comes in
sidyoung57 said:
Check out ravPower wireless hub. Just ordered one since my otg hub quit working. It can charge and store with sd card. Will post when it comes in
Click to expand...
Click to collapse
Are you using the LTE/3G for internet access? if not then setting up a wireless network in your truck might work. I use a HooToo TM001 (also have the TM002) to do this set up. The hub has a 6000mah battery that when the USB drive is not installed can charge a device.
i know it's been a while since OP posted, but i've been using a wireless HD so i can use external storage and maintain a charge. if you get the seagate wireless plus, you'll be able to charge and stream at the same time as long as you use a usb3.0 cable to charge from (it's included). using a 2.0 cable will turn off wifi.
it's quite a bit more than OTG, but it does allow you to have tons of storage available while still having a charging option.
I use a nexus 7 in the dash of my car (sure do wish I had space for the note 10.1 in there though!) With the nexus 7 I bought a y-cable that allows me to charge AND use otg functions. However, a specific kernel was needed im pretty sure. I set it all up a while back so I cant remember specifically sorry. Its all nexus 7 forums here though.
kernel
ajgftw said:
I use a nexus 7 in the dash of my car (sure do wish I had space for the note 10.1 in there though!) With the nexus 7 I bought a y-cable that allows me to charge AND use otg functions. However, a specific kernel was needed im pretty sure. I set it all up a while back so I cant remember specifically sorry. Its all nexus 7 forums here though.
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Click to collapse
can you click on about tablet and let me know which kernel please
fyahman1 said:
can you click on about tablet and let me know which kernel please
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Click to collapse
yeah mate, i'll have a look for you. the nexus 7 is out of the car now cus im trying to make a custom facia to fit the samsung note 10.1 in there. so I'll have to charge it up and have a look which kernel it was running. but im pretty sure it was just the default one that came with the AutoDroid rom in the nexus 7 forums.
if you don't hear back from me just pm me, I'm forgetful as hell and its coming into exam time....so yeah