Computer Studies IX
v1.0 · 31 MB · code 16
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File information
UpdatedSep 15, 2025
PublishedJan 3, 2020
Packagetextbook.computer.ixclass
Versionv1.0 (16)
Size31 MB
MD586b7f7290d8475e5cfda9d9e7a627cfe
Min SDK16
ABIsx86, x86-64, armeabi, armeabi-v7a, arm64-v8a, mips, mips64
Malware scanTRUSTED
Signature SHA1D7:4E:AC:52:B6:86:53:D2:92:85:03:1D:2F:71:B0:0B:C2:C2:AB:30
SignerCN=Muhammad Farhan, OU=Hostrings, O=Hostrings, L=Karachi, ST=Sindh, C=75850
Total downloads164
This version164
DeveloperPanaTech Apps
Age ratingEveryone
What's new in v1.0
Updated UI and Content
Security scan
TRUSTED
- Developer signature verified 2021-02-18
- Signature SHA1 D7:4E:AC:52:B6:86:53:D2:92:85:03:1D:2F:71:B0:0B:C2:C2:AB:30
- File MD5 86b7f7290d8475e5cfda9d9e7a627cfe
How to install Computer Studies IX v1.0 on Android API 16+
Takes about 2 minutes. You'll need roughly 31 MB of free storage.
- Grab textbook.computer.ixclass_16.apk — hit the Download button above (31 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 86b7f7290d8475e5…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find textbook.computer.ixclass_16.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=Muhammad Farhan, OU=Hostrings, O=Hostrings, L=Karachi, ST=Sindh, C=75850. 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 Computer Studies IX — tap Open on the install screen, or find the Computer Studies IX icon in your app drawer (this build targets x86/x86-64/armeabi/armeabi-v7a/arm64-v8a/mips/mips64 devices).
Common install errors for Computer Studies IX
- "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/armeabi-v7a/arm64-v8a/mips/mips64 native code. Devices with a different CPU will reject it.