I want to access the internet connection of my first android phone with my second android phone, via usb. I am sensitive to wifi/network radiation emissions, so I want to connect the first phone via wifi or 3G network to the internet, and have internet access through a long usb cable, from my second phone, set on airplane mode. I have a Galaxy S2 HD LTE SHV-120S Android version 4.0, rooted and stable The second phone I have yet to purchase. Are there apps to enable this? Drivers?

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 only" gets reset to "Transferring files": However, I only want to charge the phone and absolutely never allow data transfer for security reasons as I frequently have to connect my phone to public or workplace PCs for charging. The service which throws the notification/prompt is called *Android System* and the icon looks a bit like this (only with filled font): I activated developer options and explicitly configured the USB connection settings to **not** allow data transfer. Why does *Android System* keep changing my settings and prompting for data transfer? Is this normal behaviour? Is there a way to regain control without having to root the device?

I am trying to use a USB DAC with my Android head unit. While it works well with most apps, it doesn’t output sound when making Bluetooth calls. I did some research, and it’s said that because the mic is used during the calls, the system handles the sound differently. It mentions that there should be settings to force the Bluetooth call sound to be output through USB. However, I couldn’t find the settings and also couldn’t use apps mentioned like Lesser AudioSwitch, for they are not supported in Android 9 and later. Anyone can help shed some light on the matter? Much appreciated.

Three devices, created using a character driver (/dev/device1, /dev/device2, and /dev/device3), are not appearing in Android (AOSP 15). However, the same character driver functions correctly under Linux (via udev). The matching rule is included in ueventd.rc, and permissions have been enabled through the SELinux policy. Here is the file contents ueventd.rc /dev/device[0-9]* 0660 system system u:object_r:vendor_device:s0 my_device.te

type vendor_device, dev_type, mlstrustedobject;\
    allow system_app vendor_device:chr_file { read write open ioctl };

file_contexts /dev/device[0-9]* u:object_r:vendor_device:s0 It is expected to list the devices with below commands ls -l /dev/device* It is verified that the three devices entries are present at >$ ls /sys/dev/char/ | grep 250\ >250:0\ >250:1\ >250:2. Also verified that device_create API is success. Any thoughts?

I've got an Android "Work Profile" on my phone, kind of setup [as explained here](https://blogs.vmware.com/euc/2017/12/android-byod-how-i-use-the-work-profile.html) . It's trivial to access normal Android files. Plug a USB cable into my phone and PC, select "File Transfer" and my files show up in Windows Explorer. Is it possible to access my "Work Profile" files in the same manner? I don't see any path to them in Windows Explorer when connected (to Android 11) via USB. I'm guessing this access may not be possible.

I managed to run an Android emulator:

$ emulator Android30
INFO    | Storing crashdata in: /tmp/android-pcmagas/emu-crash-34.2.14.db, detection is enabled for process: 93905
INFO    | Android emulator version 34.2.14.0 (build_id 11834374) (CL:N/A)
ERROR   | No AVD specified. Use '@foo' or '-avd foo' to launch a virtual device named 'foo'
$ emulator -avd Android30

And I have a Realtek RTL8188EUS Wi-Fi USB dongle. How can I pass through it to the emulator so I can make the emulator manage it directly? I want to do similarly as I do with VirtualBox:

I just bought a Nexus 7 (2013) and an OTG cable. I wanted to connect a flash drive to it. When I connected it, nothing happened. I tried to find the folder with my flash drive contents in /etc - there was nothing about my flash drive. I searched in /storage/emulated/0 - there were contents of my internal SD card. I downloaded some applications from Google Play (e.g. Nexus Media Importer, OTG disc manager). It worked, but only for reading. Is there a way to write to my flash drive? Please notice that I DON'T want to ROOT.

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 to connect. I've gone to my router settings and forwarded the appropriate ports from the phone's internal IP address, but still nothing. Here are the ports needed in case it helps: - DirectPlay7 47624 47624 TCP/UDP - DirectPlay8 6073 6073 UDP - DPlay7&8 2300 2400 TCP/UDP - Outlaws 5310 5310 TCP I've also been fiddling with Telnet and ADB, but to no effect. Any suggestions?

First of all, I know there are already tens of similar questions, but none seem to be my exact scenario. And every solution gets me stuck because something does not line up with my case. I have a Samsung A70 phone that I'm trying to recover data from after the screen stopped responding to touches. Eveything else works. I want to be able to project the phone to my laptop and control it using some app or scrpy. However, USB debugging or developer mode was never enabled from settings and now I can't access the settings to enable it. I managed to boot the device into recovery. It was never flashed with any custom OS or custom recovery. I saw some posts suggesting I can use adb commands to enable USB debugging. However, when I connect the device via a USB cable to my laptop, the device shows up in Device Manager, but adb devices does show it. When I go into recovery mode, the device no longer shows up in Device Manager and adb devices still doesn't work. The only way that seems to make adb devices show it is when I put the device into sideload mode. But I don't think that is helpful, cause I don't want to flash any custom ROM as my ultimate target is to recover the data from the phone. Also, if relevant, the phone is not blocked, it does not have a password or PIN. I'm stuck. What can I do?

The standard remedy would be to try changing cables (some are power only with no data), and try changing the connection modes (File transfer / Android Auto, USB tethering, MIDI, PTP, etc.). Having tried both, my device still won't display the ADB Debugging notification. It manages to receive charge, but nothing I do seems to get it to respond to being connected to a PC. Wireless ADB doesn't seem to be working either, the PC side being unable to find anything. I know for a fact that my cable is capable of data transfer, as I've used it before. I've tried changing it anyway, in case my cable has degraded. No luck. I cycled through all the USB connection modes. No luck there either, they're all identical to "No data transfer", but at least in that case I would get the option to change the mode. Is there anything else I can do?

I have a Pixel 6. I used the built-in Recorder app. My wifi is currently disabled, and I don't want to enable it, and I don't want my audio recording synched to the cloud. I plugged my phone into my PC via USB but when browsing the folders of files can't find the audio clip. Where / how can I find the audio file?

I have a pair of AKG wired earphones (USB-C - no adapter needed) and they will not connect to my phone (Samsung S22 Ultra) Currently whenever I plug them in they seem to be recognised as a USB connector and thus will get this notification: I have tried a number of fixes from suggested by various forums and the issue still persists Fixes I have attempted: - Restarting phone - Updating phone to latest version (as of time of post) - Force stopping 'Android system' - **Ensured that 'disable USB audio routing' in developer options was turned off** - Changed my default USB configuration settings in developer options (currently selected charging phone only) I have also confirmed that this was not an issue with the earphones themselves as I have tested them on a friends phone as well as my laptop and they seem to work fine with other devices. Any help would be appreciated

Just like iPhones are pretty hard to get into once they are locked, due to USB being completely disabled, is there something similar for Samsung, or any Android at all? This prevents many exploits from being applied to a locked device. What about prevent from entering DFU mode or any similar mode?

I'd like to know how to change the default camera on Android to a USB camera, I'd like to use my webcam to authenticate QR codes, but with emulator, the camera doesn't start, I can only get video through a USB camera (v4l2) > I'd like to make WhatsApp recognize a USB camera.

Since a nice Wacom tablet is a bit pricey, especially for someone like me who doesn't do much graphic editing, I was wondering if it is possible to use a tablet (i.e. my Nexus 7) as a Wacom-esque drawing tablet when connected to a Linux computer? I did a bit of searching, however most of the info I found is for using a Wacom tablet on an Android device. I've never used a Wacom device, however I have been doing some graphic editing in Gimp, and think it would be much easier than just using a mouse. And since I have a Nexus 7, it seemed like the logical place to start. I would have to use the Nexus as a USB peripheral for the computer, and I don't know if it is possible to transmit the touch screen coordinates to the PC. If anyone can point me in the right direction, I'd appreciate it!

My camera app works normally with the built in microphone. When I try to record using a plugged USB microphone it triggers this error when I click to start recording: >cannot start video capture another app may be using the mic To make sure no other app is using the microphone I removed all other apps permissions to use this resource and leave it only for the camera but still the error happens. Any idea about why is it happening and how to solve it? I want to record videos using the usb microphone. extra info: It is a **Moto G84** with **android 14**.

I have two TCL TVs (one with Android TV and one with Google TV installed). In both cases, the USB drive becomes invisible to the TV software if I enable USB debugging. What could be the reason? Can I fix it somehow from my side? For example, by sending some adb command?

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 devices such as sd-card to type c adapter Rooted Pixel 1 with Android 10

I want to transfer a large file with adb pull, but my USB connection disconnects all the time, interrupting the transfer. How can I make this work?

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 Device Folders, and I cannot figure out how to make it show up. In this [support thread](https://support.google.com/photos/thread/120725?msgid=121716) from last year it is stated that "if the device is running Android 6.0 and above then the external SD card may be merged into internal memory and in this case it will backup all of your photos including your SD card." I am running Android 9, and 9 > 6, so this should work. When I check if the SD card is merged with internal it is marked as "Portable storage," meaning that the SD card is set as external storage. However, it goes on to say that "you should have received a pop-up notification when the external SD card was detected. The notification gives you 2 options: Eject or Setup." The notification does not give me the option to "Setup", instead it only gives me the option to "Explore". That brings up some kind of file explorer from which I cannot find any options to merge storage. It goes in to say that you can "choose which folders on your phone to back up" by "Select Settings > Back up & sync. Touch "Choose folders to back up..." and select the folders you want to back up." But in the "Back up & sync" part of Google Photos, there is no "Choose folders to back up..." The closest I can see if "Back up device folders" which takes me to a list of already discovered folders, which does not include the SD card. How do I get Photos to recognize the external USB drive?