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[Q] Charging the Gtab

Hi. I looked but did not find an answer to this question. Can you charge the Gtab through either the micro or standard USB? I can't find anything in the manual (very poor manual).
I know you normally can charge a device using the USB. I have a micro usb car charger and would love to use it.

You cannot. The USB ports do not have enough OOMPH for that.

Catch22! said:
Hi. I looked but did not find an answer to this question. Can you charge the Gtab through either the micro or standard USB? I can't find anything in the manual (very poor manual).
I know you normally can charge a device using the USB. I have a micro usb car charger and would love to use it.
Click to expand...
Click to collapse
The Viewsonic G Tablet was not designed to be charged with any of the USB ports.
You must use the standard charging port for that.

Catch22! said:
Hi. I looked but did not find an answer to this question. Can you charge the Gtab through either the micro or standard USB? I can't find anything in the manual (very poor manual).
I know you normally can charge a device using the USB. I have a micro usb car charger and would love to use it.
Click to expand...
Click to collapse
The battery on the GTablet requires more power than the usb ports can provide in order to conduct it's charging, so no....neither the usb port nor mini usb will charge the unit.

[Q] Full power charge from USB

Hi guys - anyone know of a way without modifying a usb cable to make the desire draw full power from a USB socket, 1A instead of 500mA?
Cheers
Kev

No because the phone detects that its connected to a USB port because the 2 data pins are not shorted out ... u have to mod the wire. But then u wont be able to us the wire to connect the phone to ur pc
Sent from my HTC Desire using XDA App

Excist a tut for this modification?
Sent from my HTC Desire using XDA Premium App

simpson1991 said:
Excist a tut for this modification?
Click to expand...
Click to collapse
I seriously suggest that if you want a tutorial for shorting two lines of a USB cable then you shouldn't be attempting it at all.

Some motherboards can improve usb power up to 3x, but I don't know if it works with HTC Phones, I know that it works with Apple

drakexpl said:
Some motherboards can improve usb power up to 3x, but I don't know if it works with HTC Phones, I know that it works with Apple
Click to expand...
Click to collapse
True, my ASUS mobo supports it with iphone and ipad but not with iPod classic that i have though, weird.

nope, im fully aware how to short the data lines to get the 1A charge rate, but im sure there must be a Kernel mod that can enable this?

Prynhawn da, KevAmiga
Kernel mod for what?
The specification for USB is 500mA per port, some PC motherboards are able to provide more, but not so many. I mean the limitation is the PC side.
If you want more current, you need to bridge ports.
Regards

Some very new laptops like the recent Thinkpads privide an option where you can "convert" a USB port (the yellow painted one) to an always-on 1A USB port. I'm pretty sure it charges my Desire as fast as the standard AC adapter. On my older desktop pc though, there's no chance of enabling that, even though the MoBo does have USB3. It just takes ages..

I am also looking for a tut please. ^^

it takes ages to charge via laptop and sometimes I have no other options

Chromatic said:
Prynhawn da, KevAmiga
Kernel mod for what?
The specification for USB is 500mA per port, some PC motherboards are able to provide more, but not so many. I mean the limitation is the PC side.
If you want more current, you need to bridge ports.
Regards
Click to expand...
Click to collapse
Kernel mod is available. It charges full power from a usb 2.0. Gingercakes kernel. Desire development section.

USB cables have four wires. Two for data and two for power.
If you want to modify a cable so that the phone will try to draw full power, you just need to short out the two data lines. From this, the device will think it's attached to an AC source.
In most USB cables, the data lines are the green and blue/white ones. The red and black are power.

[Q] HP Touchpad OTG support?

So simple question, does anyone know (have tasted) if Touchpad supports OTG like for example Galaxy S2?
I bought these from DX: http://www.dealextreme.com/p/micro-usb-on-the-go-host-otg-adapter-pair-50774 and is working great with my Galaxy S2, but can it be used for Touchpad?

First, it is TESTED.
Second, Nope no native support yet, might have to wait till android port is complete, might take a couple of months.

[Q] USB OTG?
That's pretty cool, keep up the work.
Does anyone have ubuntu chrooted to check if the usb module is reporting anything?
kinda pre emptively ordered one in hope.
http://www.ebay.co.uk/itm/New-Micro-USB-Male-USB-Female-Data-Cable-Adapter-/280715545728?

Apparemtly there is built-in OTG USB support using a powered hub or Y cable, and an OTG mini-male to regular female USB adapter, according to rootzwiki.com/showthread.php?4332-Functional-USB-Host-on-Touchpad

Bill2 said:
Apparemtly there is built-in OTG USB support using a powered hub or Y cable, and an OTG mini-male to regular female USB adapter, according to rootzwiki.com/showthread.php?4332-Functional-USB-Host-on-Touchpad
Click to expand...
Click to collapse
One of those newbs who can't post links eh? I'll fix that...
http://rootzwiki.com/showthread.php?4332-Functional-USB-Host-on-Touchpad
The Touchpad doesn't have a powered port is the only problem - so provide power to whatever device and you're good to go.

what about a external HDD with its own powe supply, will it work..
unfortunately, i'm still waiting for my TP so cant test

Does it work with your HD2?
If so, there is no reason not to work with TP
(Hint: HD2 has same kind of usb host capabilities that needs external power supply)

So was it ever established whether or not USB OTG works on the Touchpad? Sorry to necro-post, but I picked up a touchpad during the firesale, have been loving it with first WebOS then CM9, and since I ordered a USB OTG adapter for my GSIII (this friday!) I was curious if there was anything I needed to know about using OTG with the HPTP.

It just works with a powered adapter. Nothing more to it then that. I've plugged almost everything into mine!
Sent from my SAMSUNG-SGH-T989 using xda premium

This thread has pictures links etc of the cable setup I'm using on cm9 with the TOUCHPAD
http://forum.xda-developers.com/showthread.php?t=1934380
[Tips and Tricks] OTG (USB Host Support) - Requires kernel support
Here's a cool mod at sdx that I plan to do for TP powered OTG courtesy of ften ...
http://forum.sdx-developers.com/index.php?topic=19916.0
Self Powered USB Host on the HP Touchpad!
Sent from my "Up all night, sleep all day" HP CM9 Touchpad

Thanks for the links, will see if I can get the needed cables etc from eBay/Amazon

Thanks for the help. My OTG cable and other things from Monoprice should've come yesterday, so hopefully I'll have them tomorrow. By powered adapter, do you mean something like a powered USB hub? Although I didn't get that OTG cable for the touchpad, it'd be a nice treat to be able to use it with that, it would definitely make moving movies around a lot easier.
EDIT (10/19): Dangit, they didn't come today. I'll have to see what's up, because they've been in my area for a while according to tracking just not coming.

Yes, u will have to use either a powered USB hub or get power from a USB charger that doesn't have the data +/- pins shorted internally (purchased or modified). If u plug device (ie phone) into charger and it says "ac charging" that means the data pins are shorted.
Sent from my "Up all night, Sleep all day" EVO3D!

mpgrimm2 said:
This thread has pictures links etc of the cable setup I'm using on cm9 with the TOUCHPAD
http://forum.xda-developers.com/showthread.php?t=1934380
[Tips and Tricks] OTG (USB Host Support) - Requires kernel support
Here's a cool mod at sdx that I plan to do for TP powered OTG courtesy of ften ...
http://forum.sdx-developers.com/index.php?topic=19916.0
Self Powered USB Host on the HP Touchpad!
Sent from my "Up all night, sleep all day" HP CM9 Touchpad
Click to expand...
Click to collapse
hi:
thread speaks of wiring directly the 5v stepup to the existing microusb port w/ diode..this would be great to see.
i am notsmart but w/ detailed instructions AND pics and supplies links, i would consider trying it.

mpgrimm2 said:
Yes, u will have to use either a powered USB hub or get power from a USB charger that doesn't have the data +/- pins shorted internally (purchased or modified). If u plug device (ie phone) into charger and it says "ac charging" that means the data pins are shorted.
Sent from my "Up all night, Sleep all day" EVO3D!
Click to expand...
Click to collapse
Alright, thanks. I think I need to get a powered hub for my laptop (which I am currently using as a desktop with external monitor and keyboard) so I there may be a happy coincidence here.
Also, just checked on my touchpad, and the HP charger says charging (AC) as well as my phone charger, which I think started life destined for some Blackberry.
The powered hub should work though, and that would make a great machine for typing and working in bed as opposed to my laptop burning my thighs off.

feteru said:
Alright, thanks. I think I need to get a powered hub for my laptop (which I am currently using as a desktop with external monitor and keyboard) so I there may be a happy coincidence here.
Also, just checked on my touchpad, and the HP charger says charging (AC) as well as my phone charger, which I think started life destined for some Blackberry.
The powered hub should work though, and that would make a great machine for typing and working in bed as opposed to my laptop burning my thighs off.
Click to expand...
Click to collapse
I just verified that if you get the Micro USB Host OTG Cable With USB power ($6 from AppleCable on Ebay) that Ramjet73 mentioned (or this one), it will work with any standard USB charger (ie the 1 Amp HTC or 2 Amp HP Touchpad Charger) because the USB Power Connector is Isolated. I also picked up Applecable's USB 2.0 3 Port Hub with data Sync Charger cable for $7 (I may try to modify it to be a USB OTG powered hub with this).
I will be updating the OTG thread I mentioned earlier. See attached:

I've never successfully used OTG. I've bought 2 cables.

michaelgcarro said:
I've never successfully used OTG. I've bought 2 cables.
Click to expand...
Click to collapse
I've received a bad one before. Cut it open to verify the id pin hadn't been tied to ground like it was supposed to be. I can verify that OTG is enabled with the CM9 Nightly and jcsullin's latest Cm10.
Sent from my "Up all night, sleep all day" HP CM10 Touchpad

[Q] Asus Proprietary plug to USB converter? or anthing similar out there?

I was wondering if there is any such device / cord which would convert the Asus proprietary plug on the transformer to a USB cord or something so I could plug in different things without having to buy the keyboard....

Yes it does exist:http://www.asus.com/Peripherals_Accessories/Eee_Pad_Accessories/External_USB_Adapter/

Could you charge the tablet with a regular USB cable using that adapter?

Only when in deep sleep or turned off - but it charges.

Kumabjorn said:
Could you charge the tablet with a regular USB cable using that adapter?
Click to expand...
Click to collapse
No because the USB adapter linked only outputs 5v on the USB port, its not an input.
The USB socket is the wrong type for normal USB cables used for charging, but even a USB-A to USB-A adapter wont allow charging and may even destroy the USB adapter (well, it might not, but I certanly wouldnt want to try it!)

That is sort of what i was afraid of. I was hoping that since I can use the propietary cable, I would be able to switch to a longer cable with the help of the adapter.

Kumabjorn said:
That is sort of what i was afraid of. I was hoping that since I can use the propietary cable, I would be able to switch to a longer cable with the help of the adapter.
Click to expand...
Click to collapse
Just attach an usb3.0 cable to the propietary cable. Then you have a longer cable.
I'am using this with the tablet and charger.

It has to be USB 3.0 cable? Dang, I actually do have an older extension cable somewhere (forgot all about it until I read your post) but it is pre-3.0, but hey, if i find it I will at least give it a try, not like something would brake, right? Right??

hmm...I had asked this in my thread, but no one has given me a straight answer. Looks like it wouldn't work even with Male A to Male A. I already bought one, so maybe I'll give it a try. Has anyone done so before?

Kumabjorn said:
It has to be USB 3.0 cable? Dang, I actually do have an older extension cable somewhere (forgot all about it until I read your post) but it is pre-3.0, but hey, if i find it I will at least give it a try, not like something would brake, right? Right??
Click to expand...
Click to collapse
Yes, it must be a usb 3.0 cable.
I have this one and can charge the tablet with this cable attached to the propietary cable and the asus charger
Just tried it again and it is now charging.

That is cool, but I was hoping it would be in a "cord" form because imagine you would have that sticking out from your device, then on top of that you would have your usb plug sticking out as well...
Also, would this work with something like a wireless keyboard and mouse? (the wireless receiver is USB)...

USB Device not recognized / No fast charge

So I've had my S7 for around two months now, and all of a sudden fast charging just stopped working. Thought, oh, must be using the wrong cable (have loads of them micro USB cables floating around)
Now I'm certain I'm using the official Samsung fast charge plug and cable that came with the phone, and still no fast charge. When I try to plug into my Windows 10 Desktop or Laptop I have a message that says the device can't be recognized
Phone has already been rooted and flashed with a custom rom. Didn't think that was the issue as it wouldn't even show the mounted storage in TWRP, or identify the phone in ODIN.
Now I've flashed back to the stock rom that I made a backup of when I had the phone, and I still have the same problem!! Can't access internal / external storage using the supplied USB cable and can't fast charge.
I'm thinking the USB port on the device is just knackard.. but really, I've looked after it so well I fail to see how this could happen, unless it's a common fault.
Might just get a wireless fast charger, but do you guys have anything else I can try before giving up on the USB connectivity?
Cheers

try to connect to a different pc, if same it means your usb connector is faulty

Sounds more like the cable is bad tbh, you won't get fast charge from a PC USB port, only from the Samsung charger
But if the device isn't recognised by the PC, and won't fast charge from the charger, the common thing between them is the cable
Possible it's the phone USB port, but more likely the cable is bad
Afaik certain cables can not fast charge either, so chances are the ones you have lying around that are not the official cable can not support it
Genuine Samsung USB cable is white with the USB port symbol on both ends and the phone end has two small ridges to grip when inserting and removing it, should help identify it

Yep I'm using the official cable and fast charger
I'm trying to fast charge via the fast charger and not USB. Only trying USB to access the internal / external storage.
Tried on my desktop and laptop and both have the same issue where my old HTC m8 connects without any issue.

clownstyle said:
where my old HTC m8 connects without any issue.
Click to expand...
Click to collapse
With the same cable?

*Detection* said:
With the same cable?
Click to expand...
Click to collapse
To fast charge I've tried the original Samsung cable with the fast charge plug.
To connect to the PC I've used x3 different cables that all work with my HTC one m8. With all of them I get device not recognised. Already tried installing Samsung switch and reinstalling drivers which didn't work.

clownstyle said:
To fast charge I've tried the original Samsung cable with the fast charge plug.
To connect to the PC I've used x3 different cables that all work with my HTC one m8. With all of them I get device not recognised. Already tried installing Samsung switch and reinstalling drivers which didn't work.
Click to expand...
Click to collapse
I mean for the HTC, does the Samsung fast charge cable work to connect to the PC?
Does sound possible the phones USB port is faulty if you can't get any connection at all to the PC with multiple cables
Try changing the USB mode in developer options
Networking > Select USB configuration

*Detection* said:
I mean for the HTC, does the Samsung fast charge cable work to connect to the PC?
Does sound possible the phones USB port is faulty if you can't get any connection at all to the PC with multiple cables
Try changing the USB mode in developer options
Networking > Select USB configuration
Click to expand...
Click to collapse
Yep the genuine Samsung cable works when connecting the htc to the computer.
I've tried enabling USB debugging and switching between charging, MTP, PTP, RNDIS, Audio Source and Midi.. all of them come back with the windows popup

clownstyle said:
Yep the genuine Samsung cable works when connecting the htc to the computer.
I've tried enabling USB debugging and switching between charging, MTP, PTP, RNDIS, Audio Source and Midi.. all of them come back with the windows popup
Click to expand...
Click to collapse
Unfortunately it is starting to sound like the phone is at fault
Still under warranty? (KNOX 0x0)

*Detection* said:
Unfortunately it is starting to sound like the phone is at fault
Still under warranty? (KNOX 0x0)
Click to expand...
Click to collapse
Unfortunately not. Well it's been rooted and flashed so I guess not.
Ordered a wireless fast charger so hopefully that will see me through and WiFi network for file transfers.
I reckon the USB port will need replacing but I'm not really inclined to do that myself.

Just noticed you said you flashed back to stock using a backup you made
Have you tried stock using ODIN and 100% stock files, using CSC to reset?

My dad has a5 2016 with the same issue, and no warranty. I bought flex + connector , replaced it and still nothing. No fast charge ( it takes cca 4hrs to charge it fully ) and no usb connectivity. I gave up on that

@ClowsTyle
Any luck? I seen your recent post in another thread and it sounds like you tried to replace the USB but that didn't work.
I'm having the exact same issue now. Device suddenly stopped fast charging, Windows does not recognize it when plugged into PC. I ordered a new cable to double check and also tried on different computers. I also tried reinstalling drivers, but nothing has worked.

Hi my is doing the same thing no Fast charge and no pc connection, did anybody find out what happen with yours ?

You have to change power ic s535 for s7 edge.
When usb gets moisture power ic will damage.

I have same problem my phone charging 0-100 6hours but ı install notorious kernel and it takes 3 hours it is better than 6 hours

Same Issue
I've had the same issue for the past 3 weeks now and I've tried everything I know...
1. Tested cable and charger with another S7 and they work fine.
2. Factory Reset.
3. Changed the USB port chip.
4. Turned on "Low Battery Dump".
So far, the issue hasn't changed.

was this issue solved?
I´m having same issues whit my galaxy s7 active, I can not fast charge my phone no matter what cable I use, then noticed that evrytime I plug it to any computer it says the devicescan not be recognized, I´m about to buy a new charging port and install it, but I want to make shure this is not a software related issue.
I´ve tried several cables and several laptops/ pc´s
I´ve factory reseted my device and turned on low battery dump, wiped cache partition, and problem still there...

The charger could be faulty/damaged did you try a different charger?
---------- Post added at 06:43 PM ---------- Previous post was at 06:40 PM ----------
Dial *#08# and select the first option (mtp and another option i am on a custom rom that seems to not have the *#0808# setting

I also have the same issue with my phone the phone charges but not recognize and also tried to change settings on phone and nothing? And my other samsung phone works and nothing wrong with USB tried to install smansung drivers on PC and still same issue.
I tried a different USB and nothing works and different ports on my comp.
My ports works with my other samsung phone so not sure why not with the S7?
Is the USB faulty?