OSI Model
v2.9 · 2.8 MB · code 29
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File information
UpdatedMay 29, 2025
PublishedMar 10, 2020
Packagecom.lionheartapps.rk.osimodel
Versionv2.9 (29)
Size2.8 MB
MD561400a7b508d2b9a0b31fb445e0633ae
Min SDK15
Malware scanTRUSTED
Signature SHA15F:E9:58:3F:A0:EC:CC:DA:AA:3C:8A:AE:86:57:D7:5B:36:AC:44:CB
SignerCN=Krunalsinh Rana, O=lionheartapss.rk, L=ST, ST=GJ, C=IN
Total downloads10,000
This version10,000
DeveloperLionheartapps
Age ratingEveryone
What's new in v2.9
- bug fixes
Security scan
TRUSTED
- Developer signature verified 2021-10-23
- Scanned for malware 2021-10-23 12:41:59
- Signature SHA1 5F:E9:58:3F:A0:EC:CC:DA:AA:3C:8A:AE:86:57:D7:5B:36:AC:44:CB
- File MD5 61400a7b508d2b9a0b31fb445e0633ae
How to install OSI Model v2.9 on Android API 15+
Takes about 2 minutes. You'll need roughly 2.8 MB of free storage.
- Grab com.lionheartapps.rk.osimodel_29.apk — hit the Download button above (2.8 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 61400a7b508d2b9a…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.lionheartapps.rk.osimodel_29.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=Krunalsinh Rana, O=lionheartapss.rk, L=ST, ST=GJ, C=IN. 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 OSI Model — tap Open on the install screen, or find the OSI Model icon in your app drawer.
Common install errors for OSI Model
- "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.