c3nav – 37c3 indoor navigation
v4.2.4 · 2.9 MB · code 14040204
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File information
UpdatedDec 27, 2023
PublishedNov 1, 2021
Packagede.c3nav.droid
Versionv4.2.4 (14040204)
Size2.9 MB
MD574d83d15a5d24e7e6d09cc49c93c7ef9
Min SDK14
Malware scanTRUSTED
Signature SHA102:9E:2F:3F:B1:79:B9:6E:DB:21:F9:4A:C6:9A:99:5E:D3:B6:18:8B
SignerCN=Raphael Michel, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=DE
Total downloads10,000
This version10,000
Developerc3nav
Age ratingEveryone
What's new in v4.2.4
* Enabled auto verification of app links / URL intend filters, as otherwise c3nav links will not be opened in the app on devices with API level 23 and up.
* Information about 802.11mc support of access points is now added to the WiFi-scan result passed to the server.
* some small bug fixes
* Information about 802.11mc support of access points is now added to the WiFi-scan result passed to the server.
* some small bug fixes
Security scan
TRUSTED
- Developer signature verified 2023-12-27
- Signature SHA1 02:9E:2F:3F:B1:79:B9:6E:DB:21:F9:4A:C6:9A:99:5E:D3:B6:18:8B
- File MD5 74d83d15a5d24e7e6d09cc49c93c7ef9
How to install c3nav – 37c3 indoor navigation v4.2.4 on Android API 14+
Takes about 2 minutes. You'll need roughly 2.9 MB of free storage.
- Grab de.c3nav.droid_14040204.apk — hit the Download button above (2.9 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 74d83d15a5d24e7e…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find de.c3nav.droid_14040204.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=Raphael Michel, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=DE. 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 c3nav – 37c3 indoor navigation — tap Open on the install screen, or find the c3nav – 37c3 indoor navigation icon in your app drawer.
Common install errors for c3nav – 37c3 indoor navigation
- "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 14 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.