TK Technician
v3.1.11 · 72.4 MB · code 37
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File information
UpdatedJan 18, 2026
PublishedSep 29, 2021
Packagecom.celtrak.tkactivate
Versionv3.1.11 (37)
Size72.4 MB
MD50a689c3b2586969571450bfd56025132
Min SDK30
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1A6:59:F1:BD:D6:EF:C8:DB:1E:2E:05:FA:5F:95:B5:7E:5E:95:48:3B
SignerCN=Ruaidhri Hallinan, OU=Engineering, O=Celtrak Ltd, L=Galway, ST=Galway, C=IE
Total downloads1,000
This version1,000
DeveloperThermo King
Age ratingEveryone
What's new in v3.1.11
Bug Fixes
App Optimisations
Enhanced Diagnostics
New Firmware Support
App Optimisations
Enhanced Diagnostics
New Firmware Support
Security scan
TRUSTED
- Developer signature verified 2026-01-18
- Signature SHA1 A6:59:F1:BD:D6:EF:C8:DB:1E:2E:05:FA:5F:95:B5:7E:5E:95:48:3B
- File MD5 0a689c3b2586969571450bfd56025132
How to install TK Technician v3.1.11 on Android 11+
Takes about 2 minutes. You'll need roughly 72.4 MB of free storage.
- Grab com.celtrak.tkactivate_37.apk — hit the Download button above (72.4 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 0a689c3b25869695…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.celtrak.tkactivate_37.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=Ruaidhri Hallinan, OU=Engineering, O=Celtrak Ltd, L=Galway, ST=Galway, C=IE. 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 TK Technician — tap Open on the install screen, or find the TK Technician icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for TK Technician
- "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 11 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.