UR Mobile
v5.9 · 95.9 MB · code 59
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File information
UpdatedFeb 20, 2026
PublishedApr 7, 2021
Packagecom.blackboard.android.central.rochester
Versionv5.9 (59)
Size95.9 MB
MD5caf69ae2f0b27391358259df4181418b
Min SDK24
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1AD:D1:6D:B3:87:9D:46:E4:B8:85:C2:CC:6C:E9:70:4E:80:6B:32:E4
SignerCN=Eric Denman, OU=Blackboard Mobile, O=Blackboard, L=San Francisco, ST=CA, C=US
Total downloads10,000
This version10,000
DeveloperUniversity of Rochester
Age ratingLow Maturity
What's new in v5.9
Performance improvements.
Security scan
TRUSTED
- Developer signature verified 2026-02-20
- Signature SHA1 AD:D1:6D:B3:87:9D:46:E4:B8:85:C2:CC:6C:E9:70:4E:80:6B:32:E4
- File MD5 caf69ae2f0b27391358259df4181418b
How to install UR Mobile v5.9 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 95.9 MB of free storage.
- Grab com.blackboard.android.central.rochester_59.apk — hit the Download button above (95.9 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 caf69ae2f0b27391…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.blackboard.android.central.rochester_59.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=Eric Denman, OU=Blackboard Mobile, O=Blackboard, L=San Francisco, ST=CA, 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 UR Mobile — tap Open on the install screen, or find the UR Mobile icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for UR Mobile
- "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 7.0 Nougat 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.