Calibration
v2.2 · 5.8 MB · code 9
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File information
UpdatedApr 18, 2022
PublishedJan 23, 2021
Packagecom.phongphan.calibration
Versionv2.2 (9)
Size5.8 MB
MD5ef576fb8f580903b0f73356a981cc921
Min SDK15
Malware scanTRUSTED
Signature SHA1D9:CD:E1:EA:11:1B:69:8A:80:A3:7D:95:F6:FB:7B:A9:FC:EB:EA:66
SignerCN=Phong Phan, L=Ho Chi Minh
Total downloads100,000
This version100,000
DeveloperThe Tree Team
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2022-04-18
- Signature SHA1 D9:CD:E1:EA:11:1B:69:8A:80:A3:7D:95:F6:FB:7B:A9:FC:EB:EA:66
- File MD5 ef576fb8f580903b0f73356a981cc921
How to install Calibration v2.2 on Android API 15+
Takes about 2 minutes. You'll need roughly 5.8 MB of free storage.
- Grab com.phongphan.calibration_9.apk — hit the Download button above (5.8 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 ef576fb8f580903b…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.phongphan.calibration_9.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=Phong Phan, L=Ho Chi Minh. 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 Calibration — tap Open on the install screen, or find the Calibration icon in your app drawer.
Common install errors for Calibration
- "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 15 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.