CB1 Blockly
v1.2.2 · 3.3 MB · code 421
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File information
UpdatedMay 7, 2025
PublishedAug 16, 2021
Packageio.t2t.cb1blockly
Versionv1.2.2 (421)
Size3.3 MB
MD5b29110fd5cee89fff74402f210d62ec5
Min SDK24
Malware scanTRUSTED
Signature SHA1B5:D2:C4:F2:83:B6:47:D1:19:83:CF:F3:27:EC:C9:4E:E1:D7:1F:90
SignerCN=Clement Yu, OU=R&D, O=T2T Inc., L=Taipei, ST=N/A, C=TW
Total downloads5,000
This version5,000
DeveloperT2T Inc.
Age ratingEveryone
What's new in v1.2.2
Upgrades to Android API Level 35
Security scan
TRUSTED
- Developer signature verified 2025-05-07
- Signature SHA1 B5:D2:C4:F2:83:B6:47:D1:19:83:CF:F3:27:EC:C9:4E:E1:D7:1F:90
- File MD5 b29110fd5cee89fff74402f210d62ec5
How to install CB1 Blockly v1.2.2 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 3.3 MB of free storage.
- Grab io.t2t.cb1blockly_421.apk — hit the Download button above (3.3 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 b29110fd5cee89ff…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find io.t2t.cb1blockly_421.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=Clement Yu, OU=R&D, O=T2T Inc., L=Taipei, ST=N/A, C=TW. 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 CB1 Blockly — tap Open on the install screen, or find the CB1 Blockly icon in your app drawer.
Common install errors for CB1 Blockly
- "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 7.0 Nougat 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.