12th Class PCB Notes OffLine
v1.4.0.2 · 19.4 MB · code 6
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File information
UpdatedAug 27, 2023
PublishedJun 3, 2022
Packagecom.techzone.senior.secondarypcb
Versionv1.4.0.2 (6)
Size19.4 MB
MD535bc465561ecd3bbed7f72370e224ade
Min SDK19
Malware scanTRUSTED
Signature SHA150:E4:C2:AE:9B:04:99:45:31:66:86:5E:DC:55:89:D8:2D:B6:84:CE
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads100,000
This version100,000
DeveloperTech Zone App's
Age ratingEveryone
What's new in v1.4.0.2
* New Released.
Security scan
TRUSTED
- Developer signature verified 2023-08-27
- Signature SHA1 50:E4:C2:AE:9B:04:99:45:31:66:86:5E:DC:55:89:D8:2D:B6:84:CE
- File MD5 35bc465561ecd3bbed7f72370e224ade
How to install 12th Class PCB Notes OffLine v1.4.0.2 on Android 4.4 KitKat+
Takes about 2 minutes. You'll need roughly 19.4 MB of free storage.
- Grab com.techzone.senior.secondarypcb_6.apk — hit the Download button above (19.4 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 35bc465561ecd3bb…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.techzone.senior.secondarypcb_6.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 12th Class PCB Notes OffLine — tap Open on the install screen, or find the 12th Class PCB Notes OffLine icon in your app drawer.
Common install errors for 12th Class PCB Notes OffLine
- "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.