STI Tx Guide
v3.1.3 · 16.6 MB · code 44
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File information
UpdatedFeb 27, 2026
PublishedNov 1, 2022
Packagegov.cdc.stdtxguide
Versionv3.1.3 (44)
Size16.6 MB
MD5175ea84741098485f67bb300c055e3f4
Min SDK26
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1CC:71:BF:D8:F7:F6:E1:56:06:CF:45:17:FB:69:E2:70:9F:CD:A1:0D
SignerOU=OADC, O=CDC, L=Atlanta, ST=GA, C=US
Total downloads100,000
This version100,000
DeveloperCenters for Disease Control and Prevention
Age ratingEveryone
What's new in v3.1.3
Bug fixes and performance improvements
Security scan
TRUSTED
- Developer signature verified 2026-02-27
- Signature SHA1 CC:71:BF:D8:F7:F6:E1:56:06:CF:45:17:FB:69:E2:70:9F:CD:A1:0D
- File MD5 175ea84741098485f67bb300c055e3f4
How to install STI Tx Guide v3.1.3 on Android 8.0 Oreo+
Takes about 2 minutes. You'll need roughly 16.6 MB of free storage.
- Grab gov.cdc.stdtxguide_44.apk — hit the Download button above (16.6 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 175ea84741098485…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find gov.cdc.stdtxguide_44.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 OU=OADC, O=CDC, L=Atlanta, ST=GA, C=US. 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 STI Tx Guide — tap Open on the install screen, or find the STI Tx Guide icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for STI Tx Guide
- "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 8.0 Oreo 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.