MTK Engineering Mode - Advanced Settings & Tooling
v2.6 · 3.4 MB · code 39
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File information
UpdatedMar 23, 2021
PublishedMar 23, 2021
Packagecom.greatcallie.engineeringmodeapp
Versionv2.6 (39)
Size3.4 MB
MD5d2e901914d14a1713baa47ebad82a751
Min SDK16
Malware scanTRUSTED
Signature SHA1F3:EA:B9:0A:A3:F8:54:60:46:21:05:FF:6E:DB:D3:B7:8A:BD:4D:3D
SignerCN=Calistus Ibeme, OU=GreatCallie, O=Callie corp., L=Abuja, ST=FCT, C=NG
Total downloads500,000
This version500,000
DeveloperGreatCallie
Age ratingEveryone
What's new in v2.6
performance improvements
Security scan
TRUSTED
- Developer signature verified 2021-03-23
- Scanned for malware 2021-04-03 13:31:21
- Signature SHA1 F3:EA:B9:0A:A3:F8:54:60:46:21:05:FF:6E:DB:D3:B7:8A:BD:4D:3D
- File MD5 d2e901914d14a1713baa47ebad82a751
How to install MTK Engineering Mode - Advanced Settings & Tooling v2.6 on Android API 16+
Takes about 2 minutes. You'll need roughly 3.4 MB of free storage.
- Grab com.greatcallie.engineeringmodeapp_39.apk — hit the Download button above (3.4 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 d2e901914d14a171…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.greatcallie.engineeringmodeapp_39.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=Calistus Ibeme, OU=GreatCallie, O=Callie corp., L=Abuja, ST=FCT, C=NG. 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 MTK Engineering Mode - Advanced Settings & Tooling — tap Open on the install screen, or find the MTK Engineering Mode - Advanced Settings & Tooling icon in your app drawer.
Common install errors for MTK Engineering Mode - Advanced Settings & Tooling
- "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.