Good Lock
v3.0.14.2 · 29.4 MB · code 301402000
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File information
UpdatedMar 9, 2026
PublishedJun 17, 2025
Packagecom.samsung.android.goodlock
Versionv3.0.14.2 (301402000)
Size29.4 MB
MD53b755d6ecf12bfa99f1f1afb2d2eba0a
Min SDK31
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA19C:A5:17:0F:38:19:19:DF:E0:44:6F:CD:AB:18:B1:9A:14:3B:31:63
Signer[email protected], CN=Samsung Cert, OU=DMC, O=Samsung Corporation, L=Suwon City, ST=South Korea, C=KR
Total downloads5,000,000
This version5,000,000
DeveloperSamsung Electronics Co., Ltd.
Age ratingEveryone
What's new in v3.0.14.2
- "What's new" now shows only the changes for the version being updated
- Added detail/remove options when long-pressing the app icon on the "Good Lock Apps" screen
- Stability improvements and bug fixes
- Added detail/remove options when long-pressing the app icon on the "Good Lock Apps" screen
- Stability improvements and bug fixes
Security scan
TRUSTED
- Developer signature verified 2026-03-09
- Signature SHA1 9C:A5:17:0F:38:19:19:DF:E0:44:6F:CD:AB:18:B1:9A:14:3B:31:63
- File MD5 3b755d6ecf12bfa99f1f1afb2d2eba0a
How to install Good Lock v3.0.14.2 on Android 12+
Takes about 2 minutes. You'll need roughly 29.4 MB of free storage.
- Grab com.samsung.android.goodlock_301402000.apk — hit the Download button above (29.4 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 3b755d6ecf12bfa9…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.samsung.android.goodlock_301402000.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read [email protected], CN=Samsung Cert, OU=DMC, O=Samsung Corporation, L=Suwon City, ST=South Korea, C=KR. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Good Lock — tap Open on the install screen, or find the Good Lock icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Good Lock
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 12 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.