To check if fastboot sees your device (Volume Down + Power on most phones):
adb shell screenrecord /sdcard/demo.mp4 --size 720x1280 --bit-rate 4000000 --time-limit 30 adb pull /sdcard/demo.mp4 This uses the device's native encoder—zero performance hit on your app. Don't test manually. Let a digital monkey throw virtual bananas at your UI.
adb backup -apk -shared -all -f backup.ab Creates a backup of all apps and shared storage. To restore: android_sdk platform tools
adb version If you see "Android Debug Bridge version 1.0.41", you are ready. You know adb install -r app.apk . Boring. Let's look at the magic. 1. The "My App is Crashing on Launch" Escape Your app crashes instantly on open. Logcat is spamming errors, but you can't tap anything. Use the Activity Manager (AM) to launch cleanly:
fastboot devices
April 14, 2026 Reading Time: 6 minutes
Verify it works:
# On device: Go to Developer Options -> Wireless debugging -> Pair device with QR code. # Or, use the pairing code: adb pair 192.168.1.10:42345 # Use the IP and port shown adb connect 192.168.1.10:42345 3. The Screen Recording Wizard You need a bug report video, but screen recording apps lag the UI. Use adb :