Fernam Saw Trap
v1.0.51 · 51.5 MB · code 1000051
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File information
UpdatedFeb 9, 2026
PublishedJun 15, 2021
Packageair.com.madtraps.jig.fernam.trap
Versionv1.0.51 (1000051)
Size51.5 MB
MD51061c49943b230e1ca940698835e2764
Min SDK23
ABIsarmeabi-v7a
Malware scanTRUSTED
Signature SHA1C7:C6:89:5D:34:BC:38:BE:69:D2:FA:E9:27:4C:DD:DA:57:0F:CF:57
SignerCN=Mad Traps, OU=Mad Traps, O=Mad Traps, C=PE
Total downloads1,000,000
This version1,000,000
DeveloperMad Traps
Age ratingLow Maturity
What's new in v1.0.51
First version
Security scan
TRUSTED
- Developer signature verified 2026-02-09
- Signature SHA1 C7:C6:89:5D:34:BC:38:BE:69:D2:FA:E9:27:4C:DD:DA:57:0F:CF:57
- File MD5 1061c49943b230e1ca940698835e2764
How to install Fernam Saw Trap v1.0.51 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 51.5 MB of free storage.
- Grab air.com.madtraps.jig.fernam.trap_1000051.apk — hit the Download button above (51.5 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 1061c49943b230e1…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find air.com.madtraps.jig.fernam.trap_1000051.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=Mad Traps, OU=Mad Traps, O=Mad Traps, C=PE. 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 Fernam Saw Trap — tap Open on the install screen, or find the Fernam Saw Trap icon in your app drawer (this build targets armeabi-v7a devices).
Common install errors for Fernam Saw Trap
- "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 armeabi-v7a native code. Devices with a different CPU will reject it.