BT Sign
v4.30.9 · 28.6 MB · code 43009002
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File information
UpdatedNov 14, 2025
PublishedApr 20, 2021
Packagecom.btultrasign
Versionv4.30.9 (43009002)
Size28.6 MB
MD5dc4448017eee8d0cde96b5ee72f5c218
Min SDK21
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1C5:3A:E4:AC:FD:A1:E7:A1:83:B4:5F:AE:9F:16:9A:11:CC:2C:8D:28
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads50,000
This version50,000
DeveloperBanca Transilvania
Age ratingEveryone
What's new in v4.30.9
Security improvements.
Security scan
TRUSTED
- Developer signature verified 2025-11-14
- Signature SHA1 C5:3A:E4:AC:FD:A1:E7:A1:83:B4:5F:AE:9F:16:9A:11:CC:2C:8D:28
- File MD5 dc4448017eee8d0cde96b5ee72f5c218
How to install BT Sign v4.30.9 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 28.6 MB of free storage.
- Grab com.btultrasign_43009002.apk — hit the Download button above (28.6 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 dc4448017eee8d0c…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.btultrasign_43009002.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=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, 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 BT Sign — tap Open on the install screen, or find the BT Sign icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for BT Sign
- "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 5.0 Lollipop 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.