USB Debugging v1.12.4
APK · 1.4 MB · version code 44 · Android 4.1+ · uploaded Jan 28, 2022
- Signed differently from the Google Play version Details
- v2.2.1 is signed like the Google Play version Get v2.2.1
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v2.2.1, uploaded Jun 22, 2026 — about 4 years after this one.
- Size: this file is 1.4 MB; the latest is 2.6 MB (1.2 MB larger).
- Android: this version needs Android 4.1+; the latest needs Android 4.4+. Use this one if your device runs an older Android release.
- The latest version asks for 3 more permissions: Run foreground services, Internal broadcast protection (app-defined), Advertising ID.
- The latest version no longer asks for: In-app purchases (Google Play Billing).
File information
- Version
- v1.12.4 (44)
- Uploaded
- Jan 28, 2022
- Size
- 1.4 MB
- Requires
- Android 4.1+ (API 16)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 9a2fbca170ee2bcaa5579f979688ac9c
- Signing certificate (SHA-1)
- 00:18:45:9F:85:EF:1B:08:BF:79:A0:1B:A8:56:14:C7:C1:33:26:D0
- Signed by
- CN=Tomasz Segrodnik
- File name
- com-bluedragonfly-developeroptions-44-61539471-9a2fbca170ee2bcaa5579f979688ac9c.apk
- Package
- com.bluedragonfly.developeroptions
- Downloads (all versions)
- 1M+
- Age rating
- PEGI 3 · Everyone
Permissions (5)
This version requests 5 permissions, none of them sensitive.
- Full network access android.permission.INTERNET
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “Tomasz Segrodnik” Not the developer's name (“Blue Dragonfly”). Names in certificates can't be verified, so this alone proves nothing.
- Signed differently from the Google Play version v2.2.1, which matches Google Play, uses another certificate. Android normally won't update an installed Play Store copy with this file. v2.2.1
Store checks
- Developer signature under review Jun 22, 2026
- Antivirus scan result not available
- Uploaded by “india-market” Gold tier · 54,447 followers · uploading since 2017
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself.
How to install USB Debugging on Android 4.1+
You'll need about 2.8 MB of free space.
- Download the APK — tap Download APK above (1.4 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-bluedragonfly-developeroptions-44-61539471-9a2fbca170ee2bcaa5579f979688ac9c.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 9a2fbca170ee2bcaa5579f979688ac9c. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open USB Debugging — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.1+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.