Not sure if this has been ask yet but I just got a wireless charger so I could charge my nexus 7 while using a flash drive or a mouse connected to it. The problem i have is the wireless charging works great till i plug in a usb device then it does not charge anymore. I believe this is because the charging port is in use. Is there a fix or a setting that can let it charge?
Thank you
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I have the official Samsung desktop dock for the GN with pogo pins for charging. I cut out a notch in the left side of the dock so that I could access the USB port on the phone when it's docked. I'd hoped I could then attach a USB OTG cable and mount a flash drive while the phone charged via the pogo pins.
Unfortunately, the two functions seem to be mutually exclusive. If the phone is in the dock and charging and I attach the cable and flash drive, they are not recognized by the phone. Or, if I attach the cable and flash drive first and mount the flash drive before placing the phone in the dock, charging doesn't initiate when I put the phone in the dock.
Does anyone know if there is some way via software or hardware to force pogo pin charging while a flash drive is attached and mounted via a USB OTG cable?
I will try tomorrow on my self built car pogo charger and usb otg. I have aokp with the fast charge override feature.
subvertz said:
I will try tomorrow on my self built car pogo charger and usb otg. I have aokp with the fast charge override feature.
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Sounds great! Thanks much. If it works, it'll tempt me to go to AOKP myself.
Any luck on this?
I too want to use OTG functionality while charging phone in the official car dock.
USB OTG + charging
I'm actually trying to get the same get something like this going on a galaxy s2 (the I9100g with the omap processor) or a GN, My goal is to get usb host and charging going through the same cable. By making some changes in the kernel i've got the phone to think its in charging mode while in host mode, but if you check the battery status, it's still draining even though it says "charging" and I've got the a usb "Y" cable connected to a 5v 2amp power source.
I think cyanogenmod (there was a post on this here and a standalone app that eventually rolled into the latest cm7 nightly) has this working on a BN nook color (also TI-OMAP Processor), but I have not been able to verify this.
Does anybody have host+charing working on any device with an OMAP processor?
Sorry for the delay, I had an emergency work trip offshore on an oil rig. I can try it out tonight.
Results. Charging OTG killed pogo charging. I tried mounting in pogo charger with OTG already attached mounted with a basic thumb drive. Charging never started. I tried charging with pogo first, then plugging in OTG, charging stopped. I checked to make sure it was actually discharging by waiting for a few percent decrease.
Sorry, I was hoping it would work too.
subvertz said:
Results. Charging OTG killed pogo charging. I tried mounting in pogo charger with OTG already attached mounted with a basic thumb drive. Charging never started. I tried charging with pogo first, then plugging in OTG, charging stopped. I checked to make sure it was actually discharging by waiting for a few percent decrease.
Sorry, I was hoping it would work too.
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Thanks for giving it a try. It would be interesting to know if this behavior is built into the hardware or could be modified via software/in the kernel. It's consistent with what happens when using a powered USB hub.
Other than a software mod, I'd sure like to see someone start making and selling an Accessory Charger Adapter as described in Chapter 6 of the USB Battery Charging Specification document from 2010. It's the exact thing needed to use USB OTG and charge at the same time.
Anyone knows if its possible to charge via USB, with a device connected?
I connect an adapter microUSB to USB OTG, than connect USB OTG in a USB HUB and than i connect a device in one USB and force in another, is it possible or not??
It may work, since connecting to the pc works.
does anyone have experience of an otg cable that will charge phone whilst connected?
I have just received 3rd ebay item from China that purports to do so but fails
http://pages.ebay.com/link/?nav=item.view&id=221225352773
would really like to be able to use hox for more than an hour whilst is plugged into my storage.
cheers
Simon
Sent from my HTC One X using xda app-developers app
Have you tried it with a usb pen connected. I think it won't charge when no usb device is connected.
I believe its not possible to charge while using otg mode, as the phone's charging capability is blocked to enable otg. Im not sure if charging through pogo pins will work or not, but it should.
And I believe power part of the cable you purchased is for external power to your USB device, like a 2.5" external HD.
Would someone with a TabPro 10.1 please answer the following charging questions?
How long does this tablet take to fully charge from 25% or less charge?
If you attach a micoUSB OTG cable to a powered USB hub will the tablet still charge while using a device (USB harddrive, SDCard reader ... etc) that is also attached to the powered USB hub?
Can a microUSB OTG Y Cable concurrently charge from the standard USB charger and run an OTG USB device (e.g. SD card reader)?
I'm asking as I currently use a Nexus 10 attached to a powered hub with a USB ethernet adapter attached. Unfortunitely the Nexus 10 does not utilize the charge provided by the powered USB hub and looses charge. In this set up the powered hub only helps to power the Ethernet adapter so overall the Nexus 10 does not discharge due to the Ethernet adapter. I am hoping the TabPro 10.1 has a better charging implementation than the Nexus 10.
FYI: The Nexus 10 will not charge from its pogo connector when the micoUSB port is being used for charging or with an OTG device. The charging notification falsely indicates the device is charging.
Thanks for anyones insights.
I would like to know this too. I've purchased and the Note 10.1 2014 and this is the only issue I have with it is the lack of support for charging and USB OTG use. If the Tab Pro 10.1 or even 8.4 can charge with OTG I may exchange the Note. Thanks!
I just tried an OTG Y cable, it wont charge. I also tried a trick that worked on my lenovo windows 8 tablet where you turn the tablet off, turn it on with charger in, rip out the charger and plug in the OTG cable before it fully boots and then connect the charger to the OTG cable which allowed OTG+Power, didn't work on the tab.
IIRC this is something that can only be changed by a kernel modification as I think the old 2012 Nexus 7 could do this with a custom kernel, but I could never find a working download.
EDIT: Tried on my Tab Pro 8.4 running latest CM nightly
Unfortunately, I just wasted over $30 on a Valarm IoT OTG Y cable. It does not work at all as a host cable for any USB device on the G4. I was hoping to use the Valarm cable to connect a USB DAC and charge the phone at the same time. The cable will let me charge the phone but whatever I connected to the USB female port is not recognized. If anyone finds a USB host cable that allows charging, please post!
mattnin said:
Unfortunately, I just wasted over $30 on a Valarm IoT OTG Y cable. It does not work at all as a host cable for any USB device on the G4. I was hoping to use the Valarm cable to connect a USB DAC and charge the phone at the same time. The cable will let me charge the phone but whatever I connected to the USB female port is not recognized. If anyone finds a USB host cable that allows charging, please post!
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From what i understand otg goes one way or the other it cant act as a host and carge at the same time. It flips the charging circut to flow out instead of in. Ive been through this on a few phones tried even straight wiring a powerline to the otg itll power the usb device but not charge the phone.
TheMadScientist420 said:
From what i understand otg goes one way or the other it cant act as a host and carge at the same time. It flips the charging circut to flow out instead of in. Ive been through this on a few phones tried even straight wiring a powerline to the otg itll power the usb device but not charge the phone.
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The manufacturer of that cable clearly states that it'll charge a samsung phone, not confirmed working on a G4 though. Here is the link, http://shop.valarm.net/products/micro-usb-host-otg-y-cable-with-micro-usb-power-for-samsung
I wish there was a way to enable charging using OTG.
mattnin said:
The manufacturer of that cable clearly states that it'll charge a samsung phone, not confirmed working on a G4 though. Here is the link, http://shop.valarm.net/products/micro-usb-host-otg-y-cable-with-micro-usb-power-for-samsung
I wish there was a way to enable charging using OTG.
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Yea me to i have a few devices that hook to my car that drain my tablet and phone batts and it kills me the only other way ive got it to work is hard wire a charger to the phone. But of coarse this is a old throw away gs3 that im talkin bout not my g4. I havnt tried on my g4 yet but its all phone specs has to have dual charging circuts cause they can only flow one at a time. Now some new devices i know. Do support otg with charging capabilities.
When I am using adapter for charging my phone showing charging but it is charging but when I connect it to my laptop it is charging. I check my adapter it is working with other phone also I check using other adapter and cable the problem still exists. Please help me with this.
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Rijan10 said:
When I am using adapter for charging my phone showing charging but it is charging but when I connect it to my laptop it is charging. I check my adapter it is working with other phone also I check using other adapter and cable the problem still exists. Please help me with this.
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You can change the adapter and clean the laptop and try again.