Questions tagged [usb]
questions regarding connecting an Android device via USB to e.g. a computer's USB interface
1,005 questions
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How can I make my Android app auto-grant USB device permissions for a specific printer without prompting every time?
I’m developing an Android application that connects to a USB thermal printer for automated printing. The app works fine — it detects and prints successfully after I manually approve the prompt: “Allow ...
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0 answers
29 views
Character driver device nodes not listing in Android
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 ...
1 vote
1 answer
357 views
Android doesn't detect USB connection
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 ...
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Why does the USB flash drive stop working when USB debugging is enabled?
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 ...
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Why is my Android device not being recognized by adb on Windows 11?
I'm trying to use adb on Windows 11 and it's not picking up any of my devices. I've tried both a Samsung Galaxy S24 Ultra and a Google Pixel 6a. I've downloaded the platform tools on Windows 11 and ...
0 votes
1 answer
2k views
Is there a way to prevent any USB data transfer for locked Samsung devices?
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 ...
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How to connect external volume via micro USB to an Android phone?
I am trying to connect an external SSD storage to my Android phone (Redmi 12C running LineageOS 21 based on Android 14), and view its contents. How can I connect the disk?
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Trying to use ETEKJOY ACR122U to add NFC to non-NFC Android phones. How's about app: MTools - Mifare ACR122 PN532?
The Motorola MOTO G PLAY is one of the very last Android phones that gets delivered (by XFinity Mobile) with no NFC capability. And yes, of course, I've got one. After numerous updates it runs Android ...
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