Questions tagged [usb]

questions regarding connecting an Android device via USB to e.g. a computer's USB interface

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31 views

What are the various technical specs of a fast charging cable?

What technical specs do I need to look for to know a cable will be compatible with my phone? I just bought a new Motorola G7 supra and none of my existing USB type C cables work with it. I plug it in ...
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1answer
17k views

How to enable USB "Audio Source" option on Android 9+?

A lot of screenshots in the Internet mention a 'audio source' USB configuration for Android. For example, this one from Google: However, I cannot see this option with my SM-A510F with Android 9 (...
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1answer
193 views

How do I change the USB mode with a keyboard?

How do I change the USB mode and select an option such as MTP, PTP, MIDI or charging with only a keyboard? My screen is broken and I am trying to change the USB mode blindly using a keyboard? What ...
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53 views

How to see all partitions on an SSD

I have an SSD with 2 partitions (volumes? ) on it. I can R/W to both of them from my WIN10 PC. However, when I mount it on my Note10 , I can only see one of the partitions. Is there a way that I can ...
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116 views

I want to capture with adb commands the result of a USSD dial?

I want to capture with adb commands the result of a USSD dialing? connect my android cell phone with adb shell I make calls with ussd but I want to capture those results like saying the credit balance?...
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365 views

Connect via ADB to a physical X86 via USB

I have Android-x86 (version 9.0-r2) running in a Lenovo MIIX-320 and I have another PC running Linux. From the Linux host I can connect to any other Android device using an USB cable . But I can't ...
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1answer
2k views

Force USB Host Mode

I am trying to use an USB-serial device that has USB-A connector via USB OTG. How do I "force USB host mode" so I can use USB-A to USB-C cable instead of using OTG adapter? OTG works fine with other ...
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1answer
710 views

No difference between USB 2.0 and USB 3.2, why?

I have a doubt about USB type declared by smartphone manufacturer. Some smartphone declares USB Type C 3.2, for example Galaxy S20 Ultra. The new Xiaomi Mi 10 Pro is declared as USB 2.0 on Type C. ...
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313 views

Connecting Samsung S9 to MacBook's USB Type-C behaves like charging - not charging - charging - etc

I am trying to use my Samsung S9 to test a mobile app. I activated the "Developer options" and these are my "USB settings" (opened when I tap on the "Android System" notification): And when I "Tap ...
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43 views

Windows can access the phone's internal storage over USB, but not it's Micro sD card

My Samsung Galaxy A8+ (A730F), running Android Pie, had a faulty USB connector due to water damage and for a very long time, it wouldn't connect over USB. Nevertheless, everything else worked just ...
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25 views

How to get the information about my USB bus, version on Android 9

On my Android 5 the app Device Info HW shows what version of USB I have and whatnot, on my Android 9 the info is blank, why? Is there any other way to check it somehow?
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1k views

Android system keeps resetting default USB configuration upon PC connection

Whenever I'm connecting my Samsung Galaxy A40 running Android 9.0 to a laptop or PC, I'm getting an annoying prompt to allow data transfer, and the following setting which I had set to "Charging phone ...
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29 views

Connect/Disconnect To Specific USB Device With One Button

I have multiple speakers I connect to via USB and the one I use the most never shows on the "Previous" list no matter what I name it. So it's always multiple steps to connect. Is there any app ...
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2answers
1k views

Android plugged into car gives annoying popup "The connected device is unable to access data on this device."

Every time that I connect via USB my not-rooted Galaxy S6 (SM-G920F with stock Android 7.0) to my car (a Kia Soul 2015), this popup annoys me: "The connected device is unable to access data on this ...
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How do I use my SmartPhone to USB host my old Tablet?

My new moto g7 does not Wi-Fi the correct frequency for my old dragon touch X10. Android 9 on phone and 5.1.1 on the tablet. Want to Host from cellular through USB to Client tablet. Any ideas on how ...
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1answer
2k views

Unable to transfer files on android 8.0 TV box to the USB

Unable to transfer files on android 8.0 TV box to the USB. I have tried many file transfer apps but none will transfer to my USB even though it shows my USB connection and any files that are on the ...
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1answer
20 views

Connecting Phone to PC...USB socket seems to be dirty

It used to work. I could connect my phone to my PC with a USB cable and then browse the phone, like a mounted USB drive, with Windows explorer. Moving files back and forth was easy. Then it ...
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1answer
922 views

Sniffing USB traffic between an Android app and a connected device

Is there any way to sniff USB traffic between an Android app and a connected device, like a drone controller?
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436 views

What would be necessary to use a Rasperry pi zero W as a wifi to usb-C gateway for Android Auto?

As many new infotainment systems in cars support Android Auto, but not wireless. I was wondering if I could program something that would allow to use a cheap Raspberry Pi as a gateway. Effectively ...
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99 views

Charge and USB flash drive through same port

I have a Pixel 3. I'm trying to use an external USB connected microSD card for recording long videos in a vehicle. However, even with wireless charging I'm finding that the power supplied is ...
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1answer
1k views

Pixel 3a charging over computer USB connection

I have an Pixel 3a device that I connect to a Linux computer via USB cable (A to C). Sometimes when I plug in the device, the notification on the Pixel 3a says, "Android System - Charging this device ...
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845 views

Reboot USB Port Without Device Reboot

My phone has been slowly going insane over the time I've been using it. This time around, the USB port is throwing tantrums. It won't let the phone connect to a PC. I've tried different USB ports on ...
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1answer
3k views

How to get Google Photos to recognize External SD drive

I have connected an external SD card via a USB connector to my phone in order to have more space for recording video. However, Google Photos does not seem to recognize it - it does not show up in ...
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47 views

Samsung device isn't connecting via USB cable for file transferring

I am using a Samsung Galaxy J8 device . My phone doesn't have any SD card. I was able to browse files of phone from my PC(ubuntu os) , even I could debug my app from android studio. But suddenly I am ...
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1answer
268 views

Is data transfer from a Pixel 3a XL possible via USB 3?

The Google Pixel 3a XL has a USB C port. Is it possible to connect it to a computer that only has a USB 3 port to transfer data between the computer and the Pixel 3a XL?
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67 views

can copy file from one folder but not another

I am trying to get an apk from the aurora directory on the device onto a linux pc. There is not an issue copying in and out of the Download directory. If I connect the device with a cable and right ...
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1answer
74 views

Should warnings about not charging your phone at airport/public usb ports be taken seriously?

There are many articles on the internet saying that charging at the usb ports available at the airport and public places can cause your phone to get hacked. Is there any any truth behind this? If ...
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1answer
1k views

A hub's USB-C port doesn't allow the phone to transfer files

When I connect my phone to my laptop with the original cable, I get the option called transfer files. Now, I have Huawei Matedock 2, and when I connect the phone to its USB-C port, I don't get the ...
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146 views

How to know if USB drive was detected using OTG from dmesg output?

I am trying to get OTG to work with my phone (Samsung Galaxy Win SHV-E500L, previous question here) I have used an externally powered USB hub and connected it to an OTG cable connecting it to my ...
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2answers
3k views

Where is the mount point for a USB stick on Android 9?

I am working on IMX8QM with Android 9. I needs to configure usb stick on static mount point. Once USB stick detected, create sda1, after check I got: mek_8q:/sdcard # df Filesystem 1K-...
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314 views

Add usb to ethernet support to tablet Teclast t20

i would like to allow my tablet Teclast T20 to connect to ETHERNET via USB. I already own a USB to ETHERNET ADAPTER, that i use succesfully with my windows 10 laptop. It is an ASIX AX88772 USB2.0 to ...
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2answers
1k views

My computer doesn't recognize my phone, neither on ubuntu nor windows

I own an LG-K430T, and I use it to share internet with my Desktop PC through USB tethering. Or I did it for a year straight until today, when my PC isn't recognizing my phone anymore, neither on ...
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1answer
9k views

What folder are Google Podcasts downloads stored in? [duplicate]

I want to pull some podcast downloads off my phone, and put them on my computer. I have plugged my phone into my computer's USB port. What folder can I find my Google Podcast downloads in? My ...
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0answers
125 views

"No Photos" in OSX with PTP?

I delayed trying to fix this for a few years but now I'm having enough of it: photos on my Android phones do not show up in Image Capture/Lightroom/Photos.app on my OS X machines. File transfer (MTP) ...
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19 views

USB Debugging on a soft brick? [duplicate]

How do you enable USB Debugging on a bootloop-ed device? Or, at least, how do you determine if a bootloop-ed device has the USB Debugging option turned on?
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76 views

Micro USB port charges only (no data)

I connected my Galaxy Tab S2 to my (previously working) Ethernet adapter, only to find it would only charge (no Ethernet). However, charging (up to 2A) still works fine. I've tried: connecting a new ...
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1answer
1k views

How to bypass system dialog asking to allow access to tablet data on Android tablets, specially those by Samsung?

I am developing an Android application, which connects with a Raspberry Pi hardware via the USB port. The issue is that this system dialog (as shown in the picture above) pops up every time I connect ...
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83 views

Phone not recognized by computers at all. No adb, usb, lsusb, fastboot

For over a year my phone had no issue connecting to my computer via usb cable. I could transfer files back and forth via adb no problem. It stopped being recognized about a month or two ago, So I've ...
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2answers
4k views

Sandisk SSD USB not detected by Android

I have a Sandisk Extreme Portable SSD 500 GB. It works fine with Windows 10 but it cannot be detected by any of my Android devices. I tested with an Nokia 3.1, Sony Xperia Z3 Tablet Compact and a Sony ...
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0answers
178 views

No images from SD card are shown in PTP mode

I have ASUS ZenFone Max Pro M2 with latest updates installed (Android 9, 070 firmware version) I try to connect my phone to PC (Arch Linux 64 bit, Cinnamon DE, Nemo file manager, latest updates ...
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44 views

Disable external GPS

I use Android Auto a lot. My car's entertainment unit, which I connect my phone to via USB in order to use Android Auto, has it's own GPS antenna. But it's slow to obtain my location, and often ...
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1answer
1k views

How do I make my phone stop starting in charge only mode when I plug it in?

I did something with developer mode and now whenever I plug my phone in it wont let me access the files until I pull down the task bar and tap on "Charging via USB" which brings up a window where i ...
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0answers
164 views

How do I get rid of "the connected device is unable to access data" notification

When I connect my phone to my job computer the phone shows a "the connected device is unable to access data" dialog from time to time. I think this is just annoying - if I want to access files from my ...
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350 views

Connect Android to OTG cable and PC

TLDR: I'm wondering if it's possible to connect a android device to a device(lets say usb flash drive) while staying connected to the computer. I'm developing a app that requires a ftdi chip to be ...
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0answers
64 views

Connecting Micro USB keyboard to a Type C device

I've recently purchased a micro USB smartphone keyboard (image below). The problem is, I'm using OnePlus 5T which has a type C USB port. I've already tried micro to type C adapters, but those didn't ...
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1answer
1k views

How to organize photos from Camera folder in to folders sorted by month names?

For various reasons, I often end up pulling photos of my phones by connecting the USB connection to a computer and extracting what I need. The problem I am facing is that my DCIM/100ANDRO folder is ...
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1answer
385 views

USB debugging turns off after restart on Android 7.0

Recently, my Moto G4 running Android 7.0 has been turning off USB debugging under developer options whenever the phone restarts. Is there a way to keep it on all the time? I have already tried ...
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0answers
145 views

How to convert mmssms.db from android to ios database

My generell task was to transfer all my sms & mms from my old windows phone to my new iphone. I found some solution but I'm stuck half way now. It's workaround via android as there seems to be no ...
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96 views

Samsung Galaxy S5 not connecting PC

I've been unable to connect my samsung galaxy s5 to pc despite having tried for a couple of hours. I was able to connect to the same pc with a different s5 a few days ago and have tried connecting it ...
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0answers
13k views

How to do port forwarding over Android USB tethering?

So, for the time being I'm stuck plugging my phone into my PC and using USB tethering to connect to Wi-Fi. One of my games requires port forwarding for online play, and I'm having trouble getting it ...

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