JW Library
v12.2.1 · 52.1 MB · code 83990
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File information
UpdatedDec 7, 2025
PublishedJan 22, 2021
Packageorg.jw.jwlibrary.mobile
Versionv12.2.1 (83990)
Size52.1 MB
MD5f05371704cff449b24ee37860d6622bf
Min SDK21
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA14B:C9:3D:51:8F:C5:4C:D3:D7:3E:74:A4:EB:37:6A:4F:8F:0D:B3:A7
SignerCN=Christopher Nelson, OU=MEPS, O=Jehovah's Witnesses, L=Patterson, ST=NY, C=US
Total downloads50,000,000
This version50,000,000
Developerchepil
Age ratingEveryone
What's new in v12.2.1
Fixed several bugs, including some that were causing the app to crash
Security scan
TRUSTED
- Developer signature verified 2025-12-07
- Signature SHA1 4B:C9:3D:51:8F:C5:4C:D3:D7:3E:74:A4:EB:37:6A:4F:8F:0D:B3:A7
- File MD5 f05371704cff449b24ee37860d6622bf
How to install JW Library v12.2.1 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 52.1 MB of free storage.
- Grab org.jw.jwlibrary.mobile_83990.apk — hit the Download button above (52.1 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 f05371704cff449b…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find org.jw.jwlibrary.mobile_83990.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=Christopher Nelson, OU=MEPS, O=Jehovah's Witnesses, L=Patterson, ST=NY, 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 JW Library — tap Open on the install screen, or find the JW Library icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for JW 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 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 arm64-v8a native code. Devices with a different CPU will reject it.