ASUS Fonepad 7 and OTG + charging - Android Q&A, Help & Troubleshooting

Hello,
I'm new here and I'm struggling about this problem:
I need to use and OTG cable and in the same time charge the device.
I bought an OTG + Charging cable, but the device is not charging (but otg function is ok).
I'm wondering if I need a custom firmware or a patch to get it working.
P.S: I just tried the cable on my Samsung Galaxy s3 mini and it's charging
Thank you.
Marco.

Please help!
I noticed that if I insert the Y cable when the tablet is turned off, It shows a black-white battery icon with lightning bolt.
But if insert directly the charger it show a colored green filling battery icon.
Maybe the Ampere is not enough?

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Hello, I'm having a quark with charging my wifi tab 10.1. Perhaps it is my frustration in looking for a reason or just not wanting to accept what I think it is. But I can't seem to find the answer. (I think the problem lies in voltage output)
The problem is this, If I use anything other than the wall plug + usb cable that came with the tab, I get a red mark in the battery, indicating what I am only assuming means that it is not charging.
Have had several HTC and now samsung devices I have plenty of the wall chargers(receptacle for the usb cable). Tab wont charge when plugged into pc either, give the same red indicator.
Thanks to any help
I have the exact same and there doesn't seem to be an option to change it, for as far as I've seen. (And I've browsed through all options at least a dozen times, so either I'm very blind, or it's simply not there.)
I can't charge it using the cable it came with either by USB or by Mains... exact same issue you guys mention
I am not sure if I can provide the exact answer to your question but this is what I have learned. The Tab needs a two amp power source to charge while it is operating. Most USB chargers and ports on computers only put out about .5 amps.
If you power off the Tab and plug it in to a computer USB port, the device shows that it is charging but if it really is, the pace is very slow. I tried to charge mine from the USB port on my laptop after powering off. After two hours of charging, I did not see much if any evidence that the battery level had gone up.
I have not yet found a 2 amp USB car charger that will accept the Samsung power cable but it seems reasonable to me that if you have one of those, you should be able to charge the device in the car. Of course, you could buy the Samsung car charger which I am sure works.
Bob
My GT cannot show the battery bar during charging (GT is off), anyone pls help me..
k9s said:
My GT cannot show the battery bar during charging (GT is off), anyone pls help me..
Click to expand...
Click to collapse
Try long pressing power button.
epic 4g touch SGs2
EvoSideHustlAZ said:
Try long pressing power button.
epic 4g touch SGs2
Click to expand...
Click to collapse
thanks, you're a life save, though I bricked my tab.

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I just got my Tab p7500 and i have a problem. When i connects it to the charger it gives me MTP mode and charges veeeeeeery slowly as if it's connected to a usb.
Anyone knows what is this problem ?
Are you using original charger or some compatible, f.e. from your mobile. The original gives higher output power.
Does it actually show the connected as MTP notification? If not, make sure the charger is plugged in with the black wall adapter that came with it, since that gives it the full (10W i think) of power. If you plug it into one of those generic usb bars(like the Belkin mini surge protector), you will get only the power output meant for mobile devices and will charge very slowly.
i have the same problem
It takes me approximately 4 hour from zero to 100% with the original charger...
i just recently had the same problem.
buying a new adapter solved the problem. it seems that samsung's chargers aren't that good of a quality. (my sgs2's is working, but the outer part of the cable started to split so i had to fix it with some shrink tube...)

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Update: (PS:I'm rooted and have cwm)
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Hey there,
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