NoRoot Firewall
v3.0.1 · 1 MB · code 41
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File information
UpdatedNov 30, 2014
PublishedJul 27, 2014
Packageapp.greyshirts.firewall
Versionv3.0.1 (41)
Size1 MB
MD5b48c35a3ea1cf292c7578862690c3d6d
Min SDK14
ABIsarmeabi, armeabi-v7a
Malware scanWARNING
Signature SHA188:9E:E6:C8:EC:3C:7D:C4:60:A5:CE:C0:16:20:FA:8B:4A:3F:44:5E
SignerCN=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown
Total downloads10,000,000
This version10,000,000
DeveloperMobiwol
Age ratingEveryone
What's new in v3.0.1
- Notification sound and light reverted to the previous behavior
Security scan
WARNING
- Developer signature verified 2025-03-10
- Scanned for malware 2020-11-10 23:09:04
- Signature SHA1 88:9E:E6:C8:EC:3C:7D:C4:60:A5:CE:C0:16:20:FA:8B:4A:3F:44:5E
- File MD5 b48c35a3ea1cf292c7578862690c3d6d
How to install NoRoot Firewall v3.0.1 on Android API 14+
Takes about 2 minutes. You'll need roughly 1 MB of free storage.
- Grab app.greyshirts.firewall_41.apk — hit the Download button above (1 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 b48c35a3ea1cf292…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find app.greyshirts.firewall_41.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=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown. 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 WARNING).
- Done — open NoRoot Firewall — tap Open on the install screen, or find the NoRoot Firewall icon in your app drawer (this build targets armeabi/armeabi-v7a devices).
Common install errors for NoRoot Firewall
- "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 14 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 armeabi/armeabi-v7a native code. Devices with a different CPU will reject it.