Attero IRS
v4.2.16 · 13.4 MB · code 42016000
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File information
UpdatedMar 12, 2025
PublishedMay 20, 2021
Packagecom.safetychanger.attero.inspectionchanger
Versionv4.2.16 (42016000)
Size13.4 MB
MD5ec80f46982211afe9de8a90406e851ad
Min SDK24
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanUNKNOWN
Signature SHA143:4D:2A:C5:2C:AF:D2:0D:DB:16:24:E3:85:70:74:0D:66:8E:F1:78
SignerCN=Ruben Stolk, OU=Unknown, O=Safety Changer, L=Delft, ST=ZH, C=NL
Total downloads1,000
This version1,000
DeveloperCapptions
Age ratingEveryone
Security scan
UNKNOWN
- Developer signature verified 2025-03-12
- Signature SHA1 43:4D:2A:C5:2C:AF:D2:0D:DB:16:24:E3:85:70:74:0D:66:8E:F1:78
- File MD5 ec80f46982211afe9de8a90406e851ad
How to install Attero IRS v4.2.16 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 13.4 MB of free storage.
- Grab com.safetychanger.attero.inspectionchanger_42016000.apk — hit the Download button above (13.4 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 ec80f46982211afe…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.safetychanger.attero.inspectionchanger_42016000.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=Ruben Stolk, OU=Unknown, O=Safety Changer, L=Delft, ST=ZH, C=NL. 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 UNKNOWN).
- Done — open Attero IRS — tap Open on the install screen, or find the Attero IRS icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Attero IRS
- "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 7.0 Nougat 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.