Publication
v4.20.20240819.511 · 23.6 MB · code 20
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File information
UpdatedJul 18, 2025
PublishedMar 31, 2021
Packagebd.quantum.publication
Versionv4.20.20240819.511 (20)
Size23.6 MB
MD5ba21bb628b80b3251b730a9fe2af8578
Min SDK21
ABIsx86, x86-64, armeabi-v7a, arm64-v8a, mips, mips64
Malware scanTRUSTED
Signature SHA19E:8F:89:A9:33:D4:DD:46:F4:B7:FE:11:53:90:19:C8:CD:79:B4:55
SignerCN=Quantum Foundation, OU=Web Cell, O=Quantum, L=Dhaka, ST=Dhaka, C=bd
Total downloads10,000
This version10,000
DeveloperQuantum Method | The Science of Living
Age ratingEveryone
What's new in v4.20.20240819.511
- Stability and Performance Improvements
- Support up to Android Version 14
- Support up to Android Version 14
Security scan
TRUSTED
- Developer signature verified 2025-07-18
- Signature SHA1 9E:8F:89:A9:33:D4:DD:46:F4:B7:FE:11:53:90:19:C8:CD:79:B4:55
- File MD5 ba21bb628b80b3251b730a9fe2af8578
How to install Publication v4.20.20240819.511 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 23.6 MB of free storage.
- Grab bd.quantum.publication_20.apk — hit the Download button above (23.6 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 ba21bb628b80b325…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find bd.quantum.publication_20.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=Quantum Foundation, OU=Web Cell, O=Quantum, L=Dhaka, ST=Dhaka, C=bd. 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 Publication — tap Open on the install screen, or find the Publication icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a/mips/mips64 devices).
Common install errors for Publication
- "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 5.0 Lollipop 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/mips/mips64 native code. Devices with a different CPU will reject it.