ADB Troubleshooting Guides
Fix common ADB errors on Windows — device not found, unauthorized, install failed, device offline, and more. Step-by-step solutions.
How to Fix "ADB Device Not Found" Error on Windows
Six causes, six fixes — USB debugging, drivers, USB mode, cable issues, and stale ADB server, all covered step by step.
TroubleshootingHow to Fix "ADB Unauthorized" Error on Windows
Your device shows as unauthorized in adb devices. Here's how to fix the RSA key trust issue in five steps.
TroubleshootingHow to Fix ADB Install Failed Errors (All Error Codes)
INSTALL_FAILED_ALREADY_EXISTS, VERSION_DOWNGRADE, VERIFICATION_FAILURE, and more — every error code with the exact fix.
TroubleshootingHow to Fix "ADB Device Offline" Error on Windows
Your device shows as offline in adb devices. Seven fixes including server restart, driver reinstall, and USB port switching.
TroubleshootingHow to Fix "ADB Waiting for Device" on Windows
ADB commands hang indefinitely. Covers USB debugging, USB mode, driver issues, and multi-device targeting flags.
TroubleshootingHow to Fix "ADB No Permissions" Error on Windows
Insufficient permissions or wrong USB driver — manufacturer-specific driver guides for Samsung, Pixel, Xiaomi, and more.