Screen Lock Security Puzzle
v1.2.1 · 6.2 MB · code 5
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File information
UpdatedOct 29, 2024
PublishedAug 12, 2019
Packagedmr.screenloock.securitypuzzle
Versionv1.2.1 (5)
Size6.2 MB
MD508ba6ebd363c19b571638c1d69b477de
Min SDK9
Malware scanTRUSTED
Signature SHA19C:2F:43:BA:95:21:85:CB:6E:46:A5:39:F8:D8:DE:C9:49:35:33:9C
SignerCN=Diego Mauricio Restrepo Arredondo, OU=privada, O=kadi, L=cali, ST=valle del cauca, C=Co
Total downloads3,786
This version3,786
DeveloperDiego Mauricio Restrepo Arredondo
Age ratingEveryone
What's new in v1.2.1
Version 1.2.1
* Fixed error reading from the gallery in android 4.4+ External Memory
Version 1.2
* Added Unlock PIN
* Added Customizing font
Version 1.1
* added option in settings to avoid it from closing
* Fixed error reading from the gallery in android 4.4+ External Memory
Version 1.2
* Added Unlock PIN
* Added Customizing font
Version 1.1
* added option in settings to avoid it from closing
Security scan
TRUSTED
- Developer signature verified 2018-08-02
- Scanned for malware 2020-09-21 20:34:09
- Signature SHA1 9C:2F:43:BA:95:21:85:CB:6E:46:A5:39:F8:D8:DE:C9:49:35:33:9C
- File MD5 08ba6ebd363c19b571638c1d69b477de
How to install Screen Lock Security Puzzle v1.2.1 on Android API 9+
Takes about 2 minutes. You'll need roughly 6.2 MB of free storage.
- Grab dmr.screenloock.securitypuzzle_5.apk — hit the Download button above (6.2 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 08ba6ebd363c19b5…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find dmr.screenloock.securitypuzzle_5.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=Diego Mauricio Restrepo Arredondo, OU=privada, O=kadi, L=cali, ST=valle del cauca, C=Co. 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 Screen Lock Security Puzzle — tap Open on the install screen, or find the Screen Lock Security Puzzle icon in your app drawer.
Common install errors for Screen Lock Security Puzzle
- "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 API 9 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.