Optimum
v40.3.0 · 19.7 MB · code 76
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File information
UpdatedMar 12, 2020
PublishedMar 12, 2020
Packagelt.optimum
Versionv40.3.0 (76)
Size19.7 MB
MD5230210294edd09d6bbd2563fdccefbd4
Min SDK15
ABIsarmeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA173:8B:03:90:64:F9:F4:E6:F5:38:F0:6F:52:F5:C7:4E:96:83:A3:86
SignerCN=Eugenijus Drabuzinskas, OU=Optimum Software, O=Optimum Software, L=Kaunas, ST=Lithuania, C=LT
Total downloads1,000
This version1,000
DeveloperOptimum Software
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2020-03-12
- Scanned for malware 2021-01-07 14:51:38
- Signature SHA1 73:8B:03:90:64:F9:F4:E6:F5:38:F0:6F:52:F5:C7:4E:96:83:A3:86
- File MD5 230210294edd09d6bbd2563fdccefbd4
How to install Optimum v40.3.0 on Android API 15+
Takes about 2 minutes. You'll need roughly 19.7 MB of free storage.
- Grab lt.optimum_76.apk — hit the Download button above (19.7 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 230210294edd09d6…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find lt.optimum_76.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=Eugenijus Drabuzinskas, OU=Optimum Software, O=Optimum Software, L=Kaunas, ST=Lithuania, C=LT. 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 Optimum — tap Open on the install screen, or find the Optimum icon in your app drawer (this build targets armeabi-v7a/arm64-v8a devices).
Common install errors for Optimum
- "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 15 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/arm64-v8a native code. Devices with a different CPU will reject it.