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I'm wondering if anyone knows if it's possible to have simultaneous OTG & charging with the use of a pogo pin charger?
For instance, plug in a usb OTG into the main microUSB charging port, and use a pogo pin charger [either make one or buy when they are available], and have a flash drive, or hard drive plugged in, and charge at the same time with the pogo pin connector?
I used to have a Nexus 7, and via a custom kernel, and a OTG charging cable [basically a regular OTG with additional power wires & connector for charger]. But I think it would be simpler to use the pogo pin approach. The only thing I'm worried of however, the kernel might disable OTG while it charges via pogo, or perhaps disable charging while OTG is enabled. I guess in this case, we would need a modified kernel to achieve simultaneous OTG and charging.
Here is a link to one of the first Nexus 10 pogo charger cables and it makes this claim:
"You still can power Nexus 10 while the USB port is otherwise occupied for data uses. It is fun & convenient to have MagNector to free up the USB port and charge faster."
http://www.ebay.com/itm/MagNector-N...ader_Chargers_Sync_Cables&hash=item20ce4990a6
So if that statement is true than the answer to your question is Yes.
eBay item is no longer available..
However, I know how sellers often make unfounded claims like that. So while it's probably a good sign, I am not convinced it's true. If anyone is fortunate enough to have a pogo charger, could you test it out with a otg cable and let us know the results?
Or if you're a kernel hacker, maybe take a look at the kernel source code and tell me what you think?
Also if anyone has a link where I could read about pogo pins for the N10, I'd like to read it. I'm interested in trying to make one, if they don't make any low-cost ones in the near future.
:bump:
mvmacd said:
eBay item is no longer available..
However, I know how sellers often make unfounded claims like that. So while it's probably a good sign, I am not convinced it's true. If anyone is fortunate enough to have a pogo charger, could you test it out with a otg cable and let us know the results?
Or if you're a kernel hacker, maybe take a look at the kernel source code and tell me what you think?
Also if anyone has a link where I could read about pogo pins for the N10, I'd like to read it. I'm interested in trying to make one, if they don't make any low-cost ones in the near future.
Click to expand...
Click to collapse
The answer to the question is ye, you can charge and use otg. Btw, http://pogocable.com/ 20$ isn't a bad price...
lKBZl said:
The answer to the question is ye, you can charge and use otg. Btw, http://pogocable.com/ 20$ isn't a bad price...
Click to expand...
Click to collapse
Just wondering, have you actually tried it yet? I remember on the n7 it would disable pogo charging when you plugged in otg. I hope n10 is different.
Swiped from my Nexus 10 using xda-developers app
I got the pogo cable in today. I plugged the usb-otg cable into the Nexus 10 with a thumbdrive connected to it. Stickmount recognized the thumbdrive and I can read/write to it. I noticed that the battery runs down while the otg is plugged in though. Running Paranoidandroid 2.99 with whatever kernel comes with that.
bd177 said:
I got the pogo cable in today. I plugged the usb-otg cable into the Nexus 10 with a thumbdrive connected to it. Stickmount recognized the thumbdrive and I can read/write to it. I noticed that the battery runs down while the otg is plugged in though. Running Paranoidandroid 2.99 with whatever kernel comes with that.
Click to expand...
Click to collapse
Does it say "Charging (USB)" or "Charging (AC)" in Settings > Battery?
mvmacd said:
Does it say "Charging (USB)" or "Charging (AC)" in Settings > Battery?
Click to expand...
Click to collapse
It says "Charging (AC)"
I know it's not the original question, but it looks like that would be possible with a modified OTG USB cable. Sounds like you already have something similar.
I was thinking about this for using my n10 for larger video recording when away from wifi. Just need to hook a battery up to the OTG while its plugged into the thumb drive. It takes a charge off my laptop when connected via the otg usb, so it should work as well with the correct setup voltage/wiring .
I would also like to know the pin designation for the pogo plug. If you can do the same setup as the one above, with the pogo... There would be less chance of damage to the tablet on the go......
metaled222 said:
I know it's not the original question, but it looks like that would be possible with a modified OTG USB cable. Sounds like you already have something similar.
I was thinking about this for using my n10 for larger video recording when away from wifi. Just need to hook a battery up to the OTG while its plugged into the thumb drive. It takes a charge off my laptop when connected via the otg usb, so it should work as well with the correct setup voltage/wiring .
I would also like to know the pin designation for the pogo plug. If you can do the same setup as the one above, with the pogo... There would be less chance of damage to the tablet on the go......
Click to expand...
Click to collapse
I know a nonstandard OTG cable [a OTG charging cable, basically the same as a regular one, except it has female USB only connected to the charging pins] and a modded kernel allowed for simultaneous OTG + charge on the Nexus 7, but I'd rather not have to deal with that, as getting a separate pogo charger seems like a better option.
mvmacd said:
I know a nonstandard OTG cable [a OTG charging cable, basically the same as a regular one, except it has female USB only connected to the charging pins] and a modded kernel allowed for simultaneous OTG + charge on the Nexus 7, but I'd rather not have to deal with that, as getting a separate pogo charger seems like a better option.
Click to expand...
Click to collapse
It has to be a moded kernel to access the data in read/write mode? Nothing to do with charging, and correct?
What I was considering is a battery/usb hub combo. One that plugs into the micro usb port and the battery actually has a female usb port for the thumb drive (need root to write to the drive, but not to stream from it). Amazon carries lots of external batteries with micro usb connection and the female usb port.
I agree, the pogo would be much simpler and still allow data through the micro usb.
The pogo would be much better for portability for this type of use especially if it allows for faster charging. If no one has the pin layout, guess I'll wait to get mine and test them myself. 6 pins on the n10 itself so it's not a standard usb pin setup?
metaled222 said:
It has to be a moded kernel to access the data in read/write mode? Nothing to do with charging, and correct?
What I was considering is a battery/usb hub combo. One that plugs into the micro usb port and the battery actually has a female usb port for the thumb drive (need root to write to the drive, but not to stream from it). Amazon carries lots of external batteries with micro usb connection and the female usb port.
I agree, the pogo would be much simpler and still allow data through the micro usb.
The pogo would be much better for portability for this type of use especially if it allows for faster charging. If no one has the pin layout, guess I'll wait to get mine and test them myself. 6 pins on the n10 itself so it's not a standard usb pin setup?
Click to expand...
Click to collapse
No, on the Nexus 7, if you plug in a OTG cable [which basically grounds a certain pin, the only difference between micro OTG and micro to full size USB adapter], it disables charging through power pins, because it needs to send power to OTG device, for example, a flash drive. It needs +5V power.
So the kernel mod was to disable the output of power, so that it could instead receive power and charge, from the charger. [The charger also 100% powering the OTG device]
Even if you have an externally powered hard drive, it needs power to turn on, even if it uses a wall adapter for the actual power to run the device.
Here is the kernel I was talking about: http://mehrvarz.github.com/usb-host-mode-power-management-nexus7/
it was made by a rootzwiki user. some discussion here: http://forum.xda-developers.com/showthread.php?t=1934722
Check the images of the USB hub on the 1st link.
Just for the heck of it I plugged a USB cable connected to my PC into the Nexus 10 while the pogo was also connected. The Nexus 10 showed up on the PC as it normally does in the file explorer and I can transfer files back and forth as usual. I went to Settings -> Battery on the Nexus 10 and it showed "Charging AC". I then unplugged the pogo cable and the status changed to "Charging USB". Plugged the pogo back in and the status switched back to "Charging AC". Then to make sure the pogo was actually doing the charging, I watched 2 hours of Netflix with the screen set to full brightness. The battery went down only 2%, so I'm pretty sure the pogo was doing the charging.
Sv: [Q] Pogo pins and OTG question [simultaneous charge & OTG?]
Thanks for your test. However with Nexus 10 connected to pc it is not in otg/host mode. You need to connect for example an usb memory with a otg cable to test if charging work with host mode enabled. There seems to be some discussions going on claiming pogo charging is disabled in host mode on Nexus 10 as well. It would be really really stupid if that's the case and I can't for the world figure out how they could put this limitation in the kernel.
Skickat från min HTC Desire via Tapatalk 2
Johan1976 said:
Thanks for your test. However with Nexus 10 connected to pc it is not in otg/host mode. You need to connect for example an usb memory with a otg cable to test if charging work with host mode enabled. There seems to be some discussions going on claiming pogo charging is disabled in host mode on Nexus 10 as well. It would be really really stupid if that's the case and I can't for the world figure out how they could put this limitation in the kernel.
Skickat från min HTC Desire via Tapatalk 2
Click to expand...
Click to collapse
Yes I tried that and the pogo would not charge.
EDIT: I bought a couple of OTG Y-cables on ebay (1 male micro usb end, 1 female micro usb end and a female usb end) to play around with when I saw they had a fix for the Nexus 7. I tried one on my Nexus 7 (PA rom and Timur kernel), connecting the female usb to a powered usb hub that has 16gb sdhc card plugged into it. Then connected the female micro usb end to a spare micro usb charging cable and the other end of the charging cable to the usb hub. The male micro usb end gets connected to the Nexus 7. I fired up the Nexus 7 while in the Asus pogo dock I bought for it and it charges the Nexus 7 while also allowing the OTG connection. I tried the same setup with my Nexus 10 (PA Rom, Ktoonez kernel) and pogo cable and it worked. The Nexus 10 charges through the pogo cable while the OTG works also. With the usb hub I'm using with the Nexus 10, I had to plug the charging cable into a charger wall wart. I don't think the old hub was putting out enough power to power the usb device. I let them both run over a day like this. Ran some RomToolBox app backups on both them and they both are charging on the pogo pins while doing so. If you go to system settings -> battery it shows "Charging AC" on both.
The galaxy nexus already has a custom kernel that supports OTG + charging (via a y-cable):
http://forum.xda-developers.com/showthread.php?t=1835720
In that thread (and the link in the OP there) there are discussions about porting that kernel to the nexus 7. Also, this modified kernel is (currently) for 4.1.2. Unfortunately I am not smart enough to do this myself (especially we are now dealing with the pogo cable and the USB); I do hope to let everyone -- especially the developers! -- knows about the possibility in view of the gnex kernel.
Is this an issue only with Disk Media over OTG, or is it with anything (controllers, etc.) over OTG?
If anyone is interested read my edit a couple of posts up.
Sv: [Q] Pogo pins and OTG question [simultaneous charge & OTG?]
It says AC charging even though it's not actually charging. Confirm this with for example battery monitor widget.
Skickat från min HTC Desire via Tapatalk 2
Hi there. Recently got nexus 7 there and I was not going to root or mess with it but the lack of otg cables around my area is
Doing my head in. But on my HTC one s I have a mental installed by a dev called zarboz. He got the standard USB cable that goes from the charger to the device working as an otg cable. Without having to buy a proper otg cable.
is there a kernel that supports this. I have been looking but have not found anything on it.
snwman said:
Hi there. Recently got nexus 7 there and I was not going to root or mess with it but the lack of otg cables around my area is
Doing my head in. But on my HTC one s I have a mental installed by a dev called zarboz. He got the standard USB cable that goes from the charger to the device working as an otg cable. Without having to buy a proper otg cable.
is there a kernel that supports this. I have been looking but have not found anything on it.
Click to expand...
Click to collapse
All kernels support otg. Even the stock. Some dont have automount for external drives, but I have yet to find one that didnt accept a kb or mouse immediately. Now, otg plus host mode charging is a different story.
Sent from my Nexus 7 using xda premium
I was wondering if anyone is having similar issues with aftermarket cables.
I bought 2 cables that work fine in 2.0 for charging/data transfer.
When I put them into a 3.0 ports nothing happens, there is no prompt to access the phone, and the USB options do not appear on the phone.
I have downloaded the Samsung drivers, and tried 2 different PCs.
I have no issues using the provided Samsung cable.
Any ideas?
I haven't experienced this. Actually, I think the Samsung USB 3.0 cable that came with my phone was bad. When I used it, USB 3.0 would stay grayed out. I had another one for a portable hard drive and that one works fine with the phone. Maybe just try a different brand. These cables seem rather fragile.
LocoBaZuka said:
I was wondering if anyone is having similar issues with aftermarket cables.
I bought 2 cables that work fine in 2.0 for charging/data transfer.
When I put them into a 3.0 ports nothing happens, there is no prompt to access the phone, and the USB options do not appear on the phone.
I have downloaded the Samsung drivers, and tried 2 different PCs.
I have no issues using the provided Samsung cable.
Any ideas?
Click to expand...
Click to collapse
I purchased a 9ft Amazon Basics USB 3.0 cable and all is well. Connecting through a USB 3.0 port, my device was immediately recognized, and I had no problem transferring data files to and from the device.
My only guess would have been to ensure that your PC's USB 3.0 drivers are installed in order for the ports to work properly. Since you're not having any issues with the stock cable, I'm not really sure.
I don't know if it'll make a difference in this case, but I have USB Debugging enabled.
I have all of the drivers update and USB debugging. Think I just got some shoddy cables.
Sent from my SM-N900V using xda app-developers app
I have the same issue. When i use my Samsung cable nothing Happens, But when I use the one from Extenal HD it works Perfect
jncokilla said:
I have the same issue. When i use my Samsung cable nothing Happens, But when I use the one from Extenal HD it works Perfect
Click to expand...
Click to collapse
I called Samsung and eventually after explaining what a micro USB 3.0 cable is and how it is supposed to work, and how it is not working, they finally gave me a place to send the cable and they will supposedly send me a replacement. I'm not holding my breath though. I think I would have had better luck addressing the envelope to "The Twilight Zone."
Sent from my SM-N900V using xda app-developers app
If your 3.0 charger charges fine but is not recognized when plugged into a port I'd check the the port drivers and make sure they are up to date. But first plug into all of your ports. It could be that not all of the ports on your lap/desk top are usb 3.0 friendly. And I've seen instances where if the device has not yet been recognized it will not pick up the device theough a usb 3.0 link. So maybe first get your note recognized by using a 2.0 connector then backdoor with the 3.0 and see what happens.
samsung test all of their cords before they leave manufacturing so getting a dud is very unlikely yet not impossible.
As for the aftermarket cords I normally stick to belkin. Best build quality for a fair price.
ManOfBusiness said:
If your 3.0 charger charges fine but is not recognized when plugged into a port I'd check the the port drivers and make sure they are up to date. But first plug into all of your ports. It could be that not all of the ports on your lap/desk top are usb 3.0 friendly. And I've seen instances where if the device has not yet been recognized it will not pick up the device theough a usb 3.0 link. So maybe first get your note recognized by using a 2.0 connector then backdoor with the 3.0 and see what happens.
samsung test all of their cords before they leave manufacturing so getting a dud is very unlikely yet not impossible.
As for the aftermarket cords I normally stick to belkin. Best build quality for a fair price.
Click to expand...
Click to collapse
I have tried everything.
I plugged into 2.0 and the 3 options pop up to select a mode where 3.0 is grayed out. That menu closes when you unplug.
If you lock your phone while in this menu, you can change the port, unlock the phone and the menu is still there, but it will not allow me to select 3.0.
I have 2 3.0 ports on my laptop, 1 on the docking station, and 1 on my standalone.
None of them work with the aftermarket cable. I will take it as a loss as I really only need them for charging away from home.
LocoBaZuka said:
I have tried everything.
I plugged into 2.0 and the 3 options pop up to select a mode where 3.0 is grayed out. That menu closes when you unplug.
If you lock your phone while in this menu, you can change the port, unlock the phone and the menu is still there, but it will not allow me to select 3.0.
I have 2 3.0 ports on my laptop, 1 on the docking station, and 1 on my standalone.
None of them work with the aftermarket cable. I will take it as a loss as I really only need them for charging away from home.
Click to expand...
Click to collapse
That is indeed odd. Im not sure what to tell you. Hopefully someone will chime in and be of more assistance.
Try changing your network connections. Using usb3.0 puts on airplane mode. If u have wifi on or something it'll show greyed out. It might not be wifi but it's something similar. Saw the greyed out 3.0 the other day and changed a setting on my phone and it came back. Hope it helps.
Sent from my SM-N900V using Tapatalk
I am having the same issue. I have 2 white usb 3.0 cables that I bought online from china via ebay. They were supposed to be USB 3.0 compatible and they look similar to the original stock cable.
When I use the stock cable w/ my usb3.0 port in rear of motherboard, the phone prompts me to enable USB 3.0 mode. When I use either generic cable, it will only function in USB 2.0 mode (I get no prompt for 3.0).
I am running DarthStalker Note 3 Version 6 and 3.4.0_Compulsion Kernel_7.0 on Tmobile version Note 3
I am willing to sacrifice (cut open) one of my generic cables if anyone thinks they can help diagnose the exact cause
I am having issues finding an extra USB 3.0 cable that performs to the level of the one that came with my phone. (My OEM cable works great)
I think the issue is that the 3rd party cables use cheap, thin wire. They can put a micro USB 3.0 tip on it... but the thin wires can't carry the bandwidth.
This is most plainly noticeable by downloading an app that shows the current flow while charging. Try downloading "Galaxy Charging Current *Lite*" and charge your phone through various combinations of
cable (USB2, USB3, OEM, 3rd party)
receptacle (1A, 2A, OEM, 3rd Party),
USB port (USB2, USB3, motherboard, adaptor card)
...etc. Even wireless charging, if you're equipped.
(It should also be noted that the phone will throttle the current flow as it gets closer to full. You'll get higher flow at 30% than 76% or 96%... so keep this in mind as you try different configurations.)
I've found that I got the best current flow (1800mA) using the Samsung USB3 cable, connected to a powered USB3 hub's charging port (no data, just power). This would charge our 3200 mAH battery from 0 - 100% in about 2 hours. When I swapped in a cheap Amazon cable (CableMatters brand)... the current flow dropped to about 800mA... or 4 hours. I emailed CableMatters, and they confirmed that it's a design issue, and that the wires are thin. They were pretty plain about admitting it... and then told me to return the cables to Amazon.
I'm posting all of this useful information not only to be helpful... but also to ask for help. Has anyone found a suitable replacement for the OEM cable? I'm looking for a charging cable... I'm looking for thicker-gauge wires capable of sustaining high current flow.
Any help here? Thanks!
If you are not getting 3.0 speeds then it's not a 3.0 cable. There are many fakes on ebay and amazon.
Only buy Amazon Basics or Samsung branded cables sold by Amazon OR Samsung.
Sent from my SM-N900V using XDA Premium 4 mobile app
Hi guys.
i was today watching a movie via the newest samsung MHL cable available, i believe mhl 2.0 11 pin, when my battery went too low. i hadn't yet used the adapter with the power cable attached so i thought it would simply carry on as normal but be charging the phone as well.
unfortunately the phone started disconnecting then connecting every couple of seconds. as soon as disconnected the power cable, it connected again and played fine, albeit with a reducing battery.
as far as i am aware the adapter should be fine with this setup as confirmed by the adapter having a power socket on it.
any idea what is wrong with it?
anyone have an idea on this?
It could possibly be a weak power supply. Did you use the one that came with the phone?
Sent from my SAMSUNG-SM-N900A using XDA Premium 4 mobile app
It's possible it's a faulty power adaptor? - never used MHL so can't speculate too much myself tbh
cheers guys.
i have tried 2 power adapters now, one being for my nexus 7 in case it provided extra juice but both had the issue.
I installed it in my dash and removing it is a pita it was working perfectly fine but for some reason it wasnt showings charge or turning off or on with the car it just stays on i tried restart nothing happens i tried unplugging usb from powergen and plugging back in no result
Also if i go to usb rom under fixed installation i am able to check box and uncheck also did nothing
I am using nexus 7, timurs usb rom, otg cable, original charging cable and powergen usb charger
Please help thanks
Anyone???
I'm also using Timur's kernel with USB ROM for my car installation. I know that it can be very picky on the order the USB plugs are added (data and power). It may seem simple but remove the the OTG cable from the tablet and remove both the data and power legs from the OTG as well. The follow the order listed by Timur on his website:
To activate charging, you must first connect your external power supply to your OTG Y-adapter - then plug the OTG adapter into your Nexus 7 - and then connect any slave devices.
Click to expand...
Click to collapse
Hopefully that should get you back up and working. I completely understand how frustrating it is to have everything plugged in and see that tablet isn't charging, especially when its difficult to get to the Nexus itself.
does anyone have a easy charging solution these car chargers dont work
and a good otg y cable
You could try using a power inverter which will give you a standard US plug from the cigarette lighter. From here, you could plug in a regular outlet adapter. I found this to work pretty well with my own set up and managed to get one pretty cheap at Walmart. As for a good OTG y cable, your best bet is probably to go on Amazon and find one with a lot of good reviews. They can vary in quality and some of the cheap ones I've gotten from China have flaked out after a short time and little use.
Sent from my Nexus 7 using xda app-developers app
Not seeing usb power
I had the same issue. I was using a 90 degree adapter into an OTG cable and my n7 wouldn't go into fixed install mode. Turns out my adapter cable was stopping the n7 from recognizing power. I removed the 90 degree adapter and plugged straight to otg and it worked as advertised. The issue was found during my bench testing on a 12v powersupply. I still have to find a 90 degree otg cable that will work.
So... try a different cable or if you have an adapter between the otg y cable, that may be the issue.