[Q] Powering an Android device externally when powered off - General Questions and Answers

Hey everyone,
I am doing a bit of research on how to power on an Android device without the use of a power button. In a sense I would like to power the device on, using some other type of device that would be directly connected via the USB port.
I hope this makes sense, any help would be GREATLY appreciated.

Doubtful, because I don't think the USB port is getting any juice with the device turned off... So it wouldn't detect anything.
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

Related

TF won't connect to PC via USB anymore

Hey folks,
I've been having a hell of a time getting my tf to connect to the pc via usb these last few days. No matter what I do it will not connect to any pc.
Drivers are installed fine and worked great in the past. The usb cable works fine with the charger and devices charges fine.
If I plug the USB into the pc and then into the TF the screen turns on, so it knows its there but refuses to allow communication between pc and tf on any computer I try.
In device settings USB tethering is greyed out and no matter what I try I cannot get it to allow me to turn it on. Shutdown, held button to reset, restarted pc's, notta.
I recently used NVFLASH to unroot my TF for an RMA that I never got around to doing. Now I want to root again but without the USB working I can't.
Any help would be greatly appreciated.
No one else is experiencing this? Is my cord mucked? If so why does it still work for charging? Eeeeek! I'm freaking out here.
Sent from my Transformer TF101 using Tapatalk
Is usb debugging turned on in the tf settings->application->development?
I have no idea what you're talking about with usb tethering in the settings...
Is the device being recognized by your pc? What operating system?
USB Tethering is greyed out on all TF's. If for sharing data service with another device and you dont have data service on the TF unless you have a dongle.
Have you tried putting into APX and checking. You don't boot the rom when using nvflash. Power / Vol + when booting
Yes, if you think about it Tethering is when you wish to pass your 3G connection be that either through SIM card or Dongle to another device.
If you don't have either a SIM Card with Data services (which you won't have) or a Dongle then it is only correct the Tethering option will remain greyed out.
Hey and thanks folks.
Neither of my PC's will detect my TF but both did just a few weeks ago.
Asus sync won't work either. In accounts/sync Asus sync is off and there is no way to turn it on. Don't know if this is normal or not.
I have USB debugging on but still it won't get detected. Restarted everything multiple times too.
I cannot enter apx mode however I had no trouble doing so before.
Like I said above i can still charge with my cord just no PC connectivity so I don't understand what's up.
As for USB tethering, when USB is plugged in it should allow me to select it (even though I don't want to) thus why I think the problem is related to the pad or cord not the PCs.
Thoughts?
Sent from my Transformer TF101 using Tapatalk
This is not only annoying but it gets more and more confusing. I can connect my other Android devices to a PC and move files between the devices. I should be able to do the same with the Transformer and a PC.
igot6strings said:
Hey and thanks folks.
Neither of my PC's will detect my TF but both did just a few weeks ago.
Asus sync won't work either. In accounts/sync Asus sync is off and there is no way to turn it on. Don't know if this is normal or not.
I have USB debugging on but still it won't get detected. Restarted everything multiple times too.
I cannot enter apx mode however I had no trouble doing so before.
Like I said above i can still charge with my cord just no PC connectivity so I don't understand what's up.
As for USB tethering, when USB is plugged in it should allow me to select it (even though I don't want to) thus why I think the problem is related to the pad or cord not the PCs.
Thoughts?
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
Try new cable,the charging uses other pins/wires in the cable
Already ordered from ncix. Hopefully that's it or I'm out $45 with shipping.
Sent from my Transformer TF101 using Tapatalk
Usb tethering is for sharing the data service on your TF. If you dont have 3g/4g service on your TF then it will not be available. Do you have a conflict listed in your device manager? I have had to reinstall the Asus suite twice at this point and manually remove the drivers from device manager
Sent from my Transformer TF101 using xda premium

Phone - tablet usb

what would happen if I plug the usb cable into my a500 tablet and then connect my Captivate glide to it?
I'm too much in tech-love with my new phone (and my tablet for that matter) to just try it blindly.
Has anyone here connected their phone to a tablet?
Thanks
Sent from my SAMSUNG-SGH-I927 using XDA

[Q] Keep energized Dock`s USB ports when tablet is closed.

Do anybody know how to keep energized the USB ports of the dock while is closed???
I want to charge my phone via USB with my transformer stored in a schoolbag.
At fist time I thougth it was by hardware I mean a swich that turn off the USB ports when you close the tablet and dont care to much about this, but when I update my Transformer to ICS and put the option to keep active while is charging in developer options I note that even when my Transformer is closed with the dock it is still charging my phone via USB but only when Transformer is charging or conected to a PC.
So, anybody know how to keep active the tablet when its closed and no USB conected??????
An app???? A script that can run in terminal???? because I try with keep the screen on setting but didnt work.
Hope somebody can help me. Thanks in advance.
Try enabling the option to keep the wired network active when sleeping. I found that this seems to keep the USB ports active (although it also completely disables deep-sleep on the tablet, so there are battery trade-offs)....
Only problem is that I think that you need to connect a USB->Ethernet adapter in order for the option I'm talking about to appear (actually so that the entire "Ethernet" menu appears)...
Sent from my Transformer TF101 using Tapatalk 2
Thanks I will try it
No problem - please let us know if it works for you.
Sent from my Transformer TF101 using Tapatalk 2

usb only (not wifi) tether from nexus one to Transformer

I have done the usual search and nothing hits the nail right on the head for this question. I want to usb tether my transformer to my nexus one phone so that the phone can charge off the awesome power supply that the Transformer has while the Trans utilizes my 3g. I know I can plug the phone in to the transformer whilst the transformer is using the WiFi tether but this is hardly efficient and the battery in the phone doesn't really gain charge. My searches seem to find somebody did this on the A500 and it requires maybe a module in the transformer kernel to get it done. Can somebody please clarify and if this is the case maybe suggest a kernel that might work. I am currently using a Krakd ROM(pre ics) on my transformer. Please no suggestions on extra batteries plugging in my phone to charge it etc, thanks.
Bump anybody got any idea

USB Kit for TF700 turns screen off???

I recently purchased the ASUS USB Kit that was compatible with the TF700. However, whenever I go to insert the USB adapter into the device (empty or even with a a flash drive) it shuts my screen off. I go to turn my screen back on and it flashes for a second and the screen turns back off. Finally, when I unplug the drive, my screen comes back on and I have a notification icon that says "SD card has been removed". I searched some forms and didn't see anyone else having this issue. Is there something in the settings I need to do?? USB debugging is enabled as I am running the latest, stable CM 10.1. Any help is appreciated! Thanks!
Adam
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
aw2887 said:
I recently purchased the ASUS USB Kit that was compatible with the TF700. However, whenever I go to insert the USB adapter into the device (empty or even with a a flash drive) it shuts my screen off. I go to turn my screen back on and it flashes for a second and the screen turns back off. Finally, when I unplug the drive, my screen comes back on and I have a notification icon that says "SD card has been removed". I searched some forms and didn't see anyone else having this issue. Is there something in the settings I need to do?? USB debugging is enabled as I am running the latest, stable CM 10.1. Any help is appreciated! Thanks!
Adam
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
Never seen that happen before... and we have a ton of these sold. I would contact ASUS for an RMA? Seems like a defect.
OR... there are copycat devices that I have seen. If you have the unofficial ASUS USB Kit then you may have more of an issue. The genuine original ASUS ones we have seem to not have any defects at all!

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