J Call Blocker
v1.0 · 3.5 MB · code 7
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File information
UpdatedSep 7, 2025
PublishedOct 8, 2019
Packagenet.jansof.android.jcallblocker
Versionv1.0 (7)
Size3.5 MB
MD5b3bacb4695f1e7c738fc26484d22804e
Min SDK15
Malware scanTRUSTED
Signature SHA145:10:94:15:26:63:D6:B5:C0:54:D2:8A:94:2B:C4:45:3F:15:77:5C
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
DeveloperJansof
Age ratingEveryone
What's new in v1.0
Bugs fixing.
Security scan
TRUSTED
- Developer signature verified 2020-03-14
- Scanned for malware 2020-09-15 15:30:22
- Signature SHA1 45:10:94:15:26:63:D6:B5:C0:54:D2:8A:94:2B:C4:45:3F:15:77:5C
- File MD5 b3bacb4695f1e7c738fc26484d22804e
How to install J Call Blocker v1.0 on Android API 15+
Takes about 2 minutes. You'll need roughly 3.5 MB of free storage.
- Grab net.jansof.android.jcallblocker_7.apk — hit the Download button above (3.5 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 b3bacb4695f1e7c7…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find net.jansof.android.jcallblocker_7.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 J Call Blocker — tap Open on the install screen, or find the J Call Blocker icon in your app drawer.
Common install errors for J Call Blocker
- "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 15 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.