Chess Book Study Free
v2.8.13 · 19.7 MB · code 46
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File information
UpdatedNov 3, 2020
PublishedFeb 5, 2020
Packagecom.pereira.booknboard
Versionv2.8.13 (46)
Size19.7 MB
MD56fef0f47f6eaec33a04db35d9f255b75
Min SDK16
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA173:65:A7:A5:46:1B:B3:7C:7F:42:C7:A1:A5:E1:41:33:08:F8:BC:FF
SignerCN=Asim Pereira, OU=Asim Pereira, O=Asim Pereira, L=Bangalore, ST=Karnataka, C=IN
Total downloads100,000
This version100,000
DeveloperAsim Pereira
Age ratingEveryone
What's new in v2.8.13
* Fixed issue opening djvu files via Gmail (Thx Benzi)
* Fixed crash when opening ebooks via Gmail
* Fixed crash when opening ebooks via Gmail
Security scan
TRUSTED
- Developer signature verified 2025-03-07
- Scanned for malware 2021-01-14 20:59:27
- Signature SHA1 73:65:A7:A5:46:1B:B3:7C:7F:42:C7:A1:A5:E1:41:33:08:F8:BC:FF
- File MD5 6fef0f47f6eaec33a04db35d9f255b75
How to install Chess Book Study Free v2.8.13 on Android API 16+
Takes about 2 minutes. You'll need roughly 19.7 MB of free storage.
- Grab com.pereira.booknboard_46.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 6fef0f47f6eaec33…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.pereira.booknboard_46.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=Asim Pereira, OU=Asim Pereira, O=Asim Pereira, L=Bangalore, ST=Karnataka, 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 Chess Book Study Free — tap Open on the install screen, or find the Chess Book Study Free icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Chess Book Study Free
- "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 16 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 native code. Devices with a different CPU will reject it.