Universal Serial Bus (USB) is an interface to communicate between the mobile device and the computer. This is for questions regarding connecting an Android device to a computer's USB interface.

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Nexus 5 isn't recognized by USB

I just tried to connect my Nexus 5 to my Computer via USB but it does not show up anywhere. There is no sound of a device connecting and the Device Manager doesn't list a new device when I plug it in. ...
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79 views

does not detect external usb drive to huawei s7-721u

I connected a USB driver and a USB external keyboard to my huawei s7-721u tablet. But it is not recognised.
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23 views

Create .img of current of android setup

I have an android setup (certain apps, wifi settings, backgrounds, etc) that I'd like to get on 20 other devices. I have physical and root access to all devices. I have been using a USB burner tool ...
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62 views

How to make sweep action with external mouse (broken screen)

Maybe a silly question, I have a Asus smart pad (Jelly Bean) with broken touchscreen. I connected an external USB mouse and keyboard to control the pad, but I cannot open the default lock app, i.e. ...
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75 views

nexus 7 (2013) adb connectivity issues Mac

The 5.0.2 OTA update soft-bricked my rooted but otherwise stock Nexus 7. I tried several times to wipe/reset from recovery, but it kept boot-looping afterwards. After a hundred tries or so was ...
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194 views

How to connect to ADB without USB Debugging enabled?

I downloaded a game on my friend's phone and it crashed. I searched Google and when I turned it on the phone got stuck in a boot loop. I asked someone at my college and he said to come on here and ask ...
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24 views

my samsung galaxy ace is not opening after update

i try to install a new android version to my phone but my pc shut down and update interrupted ,now i can't open my phone? Can you help me what to do to install again android os from the begin ?
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204 views

mtp usage: how to mount and transfer files to and from a Samsung: Galaxy model Android phone

how do I use mtpfs to read/write to a USB connected Android phone, connected as a mass storage device: thufir@dur:~$ thufir@dur:~$ mkdir phone thufir@dur:~$ thufir@dur:~$ sudo mtpfs -o allow_other ...
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32 views

Is it possible to make an Android device appear and act as USB POST debugging dongle?

When a PC or laptop doesn't boot properly, you can listen to beep codes. Sometimes these aren't accurate or don't work, so you can use a POST card to see much more specific number instead. However ...
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72 views

Loose connection USB Debugging

Somehow my Nexus 5 has a loose USB-Debugging connection recently... I recently upgraded to Android 5.0.1 I had this once before, but than it could be solved by simply using a different USB cable. If ...
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75 views

USB Host Support

I have a HCL ME U1 tablet. This has a built in USB Type A socket as well as USB Mini Type B socket. I have tested the Type A socket with a standard mouse and it works well. I have also tested it with ...
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41 views

Can an Android device be used as a remote framebuffer?

I have an old HD2 a friend donated to me, which I recently flashed to a custom 4.4 (rooted) build. Since the device is old, not used for cell service, I was wondering if it could be used as a "remote ...
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168 views

Android File Transfer not working

I have a Samsung Galaxy SIII. I can connect it to my computer via a USB cable. Android File Transfer then opens. It lets me transfer files onto the device, but drag-and-dropping files from the device ...
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137 views

Connect headset via micro USB input

Is there any possible way to run a headset that have micro USB output to connect to a Android LG phone by micro USB input?
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205 views

External keyboard, missing physical keyboard section in settings

I have just bought usb keyboard for my galaxy tab 3 8.0 with android 4.4.2 Keyboard is working well, device automatically detects it and i can type quite all right with it, however for my purposes I ...
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32 views

Recover files programs dont recognise note 2

So... I was very, very proud of my collection of almost 800 songs on my phone, and yesterday I deleted 700 by accident. I had just inserted my new SD and had transfered all my songs to the SD, but as ...
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20 views

Uncommon Android brand shows HTC with lsusb

I have an Android phone of an uncommon brand. When I connect it to my PC (using Ubuntu 14.04) and use the lsusb command, it shows HTC as the vendor. Why does this happen?
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128 views

Control Mobile via pc using USB (No URL Control)

I want to control the mobile via pc using usb cable, I found out lot many solution like Droid@Screen & AndroidScreenMonitor etc., but this is an one way communication am not able to control from ...
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96 views

Problem with connecting my Sony Xperia Miro to computer

When I connect my Sony Xperia Miro to my computer, regular icon 'Sony xperia miro' pops up on the toolbar but when I want to browse files or import pictures and videos - when I click on it, it says 0 ...
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85 views

A10 chinese tablet- CloudNine Neuropad2

My tablet would not boot up after leaving it trying for ages. Tried to get into the system to do a factory reset but when I did get into a menu with about 15 options they were all in Chinese - took a ...
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103 views

Android phone USB connection

I Have just had a Kenwood DDX4250 head unit fitted by a recommendation. It will not recognize my Samsung Galaxy S3 connected by the USB. It will connect by Bluetooth. I was told I would be able to run ...
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133 views

Is it possible to emulate a small separate mass storage device as a USB guest?

I am working with a set of embedded devices, that take configuration from a plugged-in USB flash drive over mass storage, and I have no way of modifying this behavior. Upon their boot, they will read ...
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103 views

Android can't see usb connection

When I connect my device (Nexus 7 2013) to PC or charger by USB, android can't see this connection. It shows that baterry don't charges, but it charges. When tablet is off and I connect it to charger ...
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862 views

micro usb flash drive not detected

My Samsung Galaxy Mega 5.8 (android 4.2.2) is not detecting SanDisk 16 gb pen drive (which has a micro usb socket on one side & normal usb socket on the other side). I have tried various usb ...
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82 views

Where does Android 4.4+ temporarily copy video files to when playing them over usb in windows directly?

I was trying to play some big video files (~3gb) on my device in windows while my nexus 5 was connected over usb. (usb debugging disabled) The video didn't play right away however, as it first had to ...
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88 views

How can I recover data from my android tablet?

My brother had some important data on his android tablet. Unfortunately the touch screen on this android tablet (Azpen model A700) is no longer responding. I would like to put the data on my pc before ...
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28 views

Can Android TV Dongle be color corrected?

I need to display a slideshow of products that require accurate colors. The TV itself (Samsung 40") can display photos correctly when played via USB thumb drive plugged directly into TV. However when ...
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57 views

establishing USB connection takes > 3 minutes and times out, charging works

Some time ago I've been able to connect my "Smart"phone to my Ubuntu 14.04 PC as mass storage device with an micro USB cable hitting the ~"Activate USB storage" (translated) button in the notifiaction ...
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208 views

Can Asus Nexus 7 WiFi support a Huawei E3276 4G usb dongle SIM holder to achieve telephone functionality?

I could connect (with an usb adapter) a Huawei usb dongle that I normally use with my laptop computer and contains a SIM card for mobile internet and phone functions like SMS and phonecalls, but it ...
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118 views

Android usb otg high current negotiation though hub?

I have been tinkering with a android usb-otg project and could use some assistance. I have been able to invoke usb otg power delivery in my host device (galaxy s3) to an peripheral through a makeshift ...
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83 views

Why does the screen flicker when connecting to a third party wall mounted USB charger

After going through this post(Why does my phone have erroneous input when connected to a non-OEM power source?) I am asking this question the above post does not solve my question up to the mark. I ...
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528 views

How to root SNT-210, an Android 4.4.2 chinese CarDVD (no standard methods work)?

The device: Model SNT-210 Android 4.4.2-0140516-sntb-HOMEMADE Kernel 3.0101-gdaab9de-dirty QDroid@DevServer #9 Build omnisntb-eng 4.4.2 KOT49H eng.QDroid.20140516.133512 test-keys I found out ...
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192 views

Geeksphone Revolution device only working with adb when charging

I have: Geeksphone Revolution (Installed android 4.2 yesterday) adb 4.4.2_r2-1 Arch Linux (Updated packages) adb/Configuring USB Access With Firefox OS everything worked fine. Now I can only use ...
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12 views

“In the setting will not be less than 2mb” Trying to enable adb debug

So, when I try to go to Settings > Applications > Development it simply states In the setting will not be less than 2MB. I have a stock Alcatel One Touch Revolve. Literally just got it. ...
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206 views

Restoring USB Audio after accidental /Music deletion on Nexus 4

I used to be able to have my Nexus 4 play audio via USB to my basic Kenwood car stereo. The controls weren't great, as the device isn't specifically Android-compatible: next folder, and next/previous ...
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396 views

samsung galaxy tab 3 can not connect to pc via usb

I am trying to connect my galaxy tab 3 to my pc via usb, however my pc does not recognise it and nothing is shown on my computer on the usb drive. However when I connect it to the pc I get the message ...
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89 views

Where has /sys/bus/usb/ gone in Android JB4.2?

I'm running a rooted stock Samsung Galaxy S4-mini (GT-I9195) with 4.2.2 SELinux in Enforcing mode. When issuing lsusb, I get the following result: u0_a202@MSM8960:/ # lsusb lsusb: ...
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575 views

Use phone as USB Bluetooth adapter

I know this question has been asked before, but I've never found a definitive answer. I have a Bluetooth keyboard that I would like to use with my computer. My PC is fairly old, which means it doesn't ...
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30 views

Is there a way to have your phone light stay when it is charging only from a laptop?

When I have the my device plugged into my laptop while working I want the light to stay on, but I want my light to turn off when I'm going to sleep when it is charging. I know I can have the light on ...
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73 views

How can I make my Android phone request (negotiate for) more charge from (with) the host PC?

Hello there is a wonderful Q&A here about detecting how much charge your phone is drawing from the computer host: How do you check how much power a USB port can deliver? In my particular case, my ...
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161 views

“Windows was unable to install your Nexus 7.” I'm having troubles getting the drivers to work in a way that allows me to run to device

My goal: I want to be able to run to device from an IDE, like eclipse/intellij. My problem: I cannot get the usb drivers to install. I have tried many guides, but they all fail at the step where I ...
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361 views

what is the requirements to charge android tab via USB cable?

I wanna charge my android tab ( not a prestigious brand ) via a USB cable connected with my laptop. I tried but it wont charge, Is there any requirements to do that?
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154 views

How to traverse camera from device via adb to my Ubuntu?

What is the best way to traverse web camera? E.g. there is great number of web servers for android with video translations. How to get access to its via adb? Or wi-fi would be a easiest way?
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105 views

why does my power drain when i use usb otg ethernet on my galaxy nexus?

i've noticed a massive power drain using usb otg ethernet on a galaxy nexus (running cyanogenmod 11), compared to plain wifi. was wondering if anyone knew why ? and how i might resolve this ...
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4k views

Mount USB OTG to specific destination folder

I've got a Moto G with 4.4.2 and, as stock OTG functionality is broken in the latest android version, I need a way to mount my mini USB card reader (meenova) to /sdcard folder. From what I've found ...
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419 views

Does Android Jelly Bean 4.1 Support Microphone Audio Input from mini USB Headset?

Samsung Galaxy Tab 3 7.0 (WiFi) 16Gb device running Android Jelly Bean 4.1 This tablet has a 3.5mm jack for stereo audio out. No microphone jack. At least this is the way I'm reading the specs: ...
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2k views

USB driver for Samsung Galaxy Gio S5660

I have some trouble, When I try to run the android-project(Eclipse IDE) on a real device Android-Manager does not see my phone connected via USB. I don't know how to install usb driver. OS: Linux Mint ...
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264 views

Sony Xperia Tipo dual can't connect to PC

My Xperia Tipo Dual cannot connect to my PC, but it charges if I reboot or power off.
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198 views

USB connection issues with Nexus 4

I've installed some app from Google Play called "franco.Kernel updater", which had an option to enable "fast charging" (the app claims it provides a custom kernel that saves battery life). After I ...
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305 views

Losing connection to powered USB hub

Background (not a development question): I'm developing an application which allows multiple android devices to interact. I am trying to tether the phones through a powered USB hub to run some ...