Aico AudioLINK
v4.1.21 · 10.5 MB · code 1684919039
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File information
UpdatedNov 18, 2025
PublishedJun 12, 2021
Packagecom.productworld.audiolink.aico
Versionv4.1.21 (1684919039)
Size10.5 MB
MD5f21b45a98b25254e50bdbe30c84f77c2
Min SDK19
Malware scanTRUSTED
Signature SHA180:AA:6C:74:84:B9:3B:8C:96:F2:C0:7B:E6:D0:5C:C7:98:15:3B:6C
Signer[email protected], CN=John McInerney, OU=Engineering, O=Ei Electronics, L=SHANNON, ST=CLARE, C=ER
Total downloads50,000
This version50,000
DeveloperEi Electronics
Age ratingEveryone
What's new in v4.1.21
Support for upcoming devices added.
Various bugfixes.
Various bugfixes.
Security scan
TRUSTED
- Developer signature verified 2025-11-18
- Signature SHA1 80:AA:6C:74:84:B9:3B:8C:96:F2:C0:7B:E6:D0:5C:C7:98:15:3B:6C
- File MD5 f21b45a98b25254e50bdbe30c84f77c2
How to install Aico AudioLINK v4.1.21 on Android 4.4 KitKat+
Takes about 2 minutes. You'll need roughly 10.5 MB of free storage.
- Grab com.productworld.audiolink.aico_1684919039.apk — hit the Download button above (10.5 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 f21b45a98b25254e…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.productworld.audiolink.aico_1684919039.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 [email protected], CN=John McInerney, OU=Engineering, O=Ei Electronics, L=SHANNON, ST=CLARE, C=ER. 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 Aico AudioLINK — tap Open on the install screen, or find the Aico AudioLINK icon in your app drawer.
Common install errors for Aico AudioLINK
- "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 4.4 KitKat 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.