Open Library
v1 · 212.7 KB · code 1
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File information
UpdatedJun 12, 2024
PublishedSep 4, 2023
Packageorg.openlibrary.testing.twa
Versionv1 (1)
Size212.7 KB
MD59f77cc60ecab5ecdcc740f39ffacb4dd
Min SDK19
Malware scanTRUSTED
Signature SHA174:8B:82:C3:6E:C7:DD:88:55:65:AB:72:F0:8D:31:FB:36:58:46:78
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads100,000
This version100,000
DeveloperInternet Archive
Age ratingEveryone
What's new in v1
First internal release!
Security scan
TRUSTED
- Developer signature verified 2024-06-12
- Signature SHA1 74:8B:82:C3:6E:C7:DD:88:55:65:AB:72:F0:8D:31:FB:36:58:46:78
- File MD5 9f77cc60ecab5ecdcc740f39ffacb4dd
How to install Open Library v1 on Android 4.4 KitKat+
Takes about 2 minutes. You'll need roughly 212.7 KB of free storage.
- Grab org.openlibrary.testing.twa_1.apk — hit the Download button above (212.7 KB). 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 9f77cc60ecab5ecd…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find org.openlibrary.testing.twa_1.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=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US. 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 Open Library — tap Open on the install screen, or find the Open Library icon in your app drawer.
Common install errors for Open Library
- "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.