Smart thermometer
v3.1.21 · 3.3 MB · code 34
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File information
UpdatedJun 9, 2024
PublishedJan 16, 2022
Packagecom.naavsystems.smartthermo
Versionv3.1.21 (34)
Size3.3 MB
MD5f70d34ee11f512e757dfb102e3f08df5
Min SDK15
Malware scanTRUSTED
Signature SHA10B:E3:E8:DE:03:00:B2:94:50:81:FF:8A:91:07:F2:FF:2D:63:0E:D8
SignerCN=Hai Chau Nguyen, OU=University of Engineering and Technology, O=Vietnam National University, L=Hanoi, ST=Hanoi, C=VN
Total downloads50,000
This version50,000
DeveloperNAAV Systems
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2024-06-09
- Signature SHA1 0B:E3:E8:DE:03:00:B2:94:50:81:FF:8A:91:07:F2:FF:2D:63:0E:D8
- File MD5 f70d34ee11f512e757dfb102e3f08df5
How to install Smart thermometer v3.1.21 on Android API 15+
Takes about 2 minutes. You'll need roughly 3.3 MB of free storage.
- Grab com.naavsystems.smartthermo_34.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 f70d34ee11f512e7…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.naavsystems.smartthermo_34.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=Hai Chau Nguyen, OU=University of Engineering and Technology, O=Vietnam National University, L=Hanoi, ST=Hanoi, C=VN. 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 Smart thermometer — tap Open on the install screen, or find the Smart thermometer icon in your app drawer.
Common install errors for Smart thermometer
- "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.