Amtelco Secure Messages
v7.1.0.278 · 25.4 MB · code 278
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File information
UpdatedApr 15, 2026
PublishedJul 12, 2021
Packagecom.amtelco.secure
Versionv7.1.0.278 (278)
Size25.4 MB
MD57507ba96d751d75ec38a88d4aa4fdece
Min SDK26
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1BC:70:34:2B:43:2D:8F:49:D3:87:9C:51:BC:9B:69:67:C3:45:8B:0C
SignerCN=amtelco, OU=amtelco, O=amtelco
Total downloads50,000
This version50,000
DeveloperAMTELCO
Age ratingEveryone
What's new in v7.1.0.278
Added Low Priority as an option for messages.
Added support to override “Silent” on Android for High Priority messages.
Added additional support for large font size.
Added Haptic Feedback on the Phone Dialer.
If three or less links are configured for the Group, the “Links” section is expanded by default.
Modified the New Message Search Screen.
7.1 Server Compatible Specific Issues
Initial IS Status Integration implementation.
Added support to override “Silent” on Android for High Priority messages.
Added additional support for large font size.
Added Haptic Feedback on the Phone Dialer.
If three or less links are configured for the Group, the “Links” section is expanded by default.
Modified the New Message Search Screen.
7.1 Server Compatible Specific Issues
Initial IS Status Integration implementation.
Security scan
TRUSTED
- Developer signature verified 2026-04-15
- Signature SHA1 BC:70:34:2B:43:2D:8F:49:D3:87:9C:51:BC:9B:69:67:C3:45:8B:0C
- File MD5 7507ba96d751d75ec38a88d4aa4fdece
How to install Amtelco Secure Messages v7.1.0.278 on Android 8.0 Oreo+
Takes about 2 minutes. You'll need roughly 25.4 MB of free storage.
- Grab com.amtelco.secure_278.apk — hit the Download button above (25.4 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 7507ba96d751d75e…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.amtelco.secure_278.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=amtelco, OU=amtelco, O=amtelco. 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 Amtelco Secure Messages — tap Open on the install screen, or find the Amtelco Secure Messages icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Amtelco Secure Messages
- "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 8.0 Oreo 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.