Smart Guard Control – Security
v3.90 · 10.9 MB · code 390
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File information
UpdatedNov 21, 2025
PublishedApr 20, 2021
Packagecom.GPSSys.SGControl
Versionv3.90 (390)
Size10.9 MB
MD59f214d3b45850e57e0f7b9ff88058465
Min SDK23
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1E5:A0:62:E9:E5:41:D7:65:30:D3:62:52:76:47:8F:F3:C0:47:85:C9
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads1,000
This version1,000
DeveloperGPS Systems Bulgaria Ltd.
Age ratingEveryone
What's new in v3.90
Optimize of the application
Security scan
TRUSTED
- Developer signature verified 2025-11-21
- Signature SHA1 E5:A0:62:E9:E5:41:D7:65:30:D3:62:52:76:47:8F:F3:C0:47:85:C9
- File MD5 9f214d3b45850e57e0f7b9ff88058465
How to install Smart Guard Control – Security v3.90 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 10.9 MB of free storage.
- Grab com.GPSSys.SGControl_390.apk — hit the Download button above (10.9 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 9f214d3b45850e57…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.GPSSys.SGControl_390.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 CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US. 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 Smart Guard Control – Security — tap Open on the install screen, or find the Smart Guard Control – Security icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Smart Guard Control – Security
- "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 6.0 Marshmallow 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.