EMS-Quantum Ultra
v1.7.355 · 8.2 MB · code 12201
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File information
UpdatedNov 18, 2025
PublishedApr 8, 2021
Packagecom.extron.videowallkiosk
Versionv1.7.355 (12201)
Size8.2 MB
MD5425e9331f88a9eb06bec0a5c573eb9d0
Min SDK24
Malware scanTRUSTED
Signature SHA1A4:D0:80:69:4E:AD:26:4F:46:3E:29:7A:FB:AF:7E:2F:94:34:D9:EC
SignerCN=Extron Electronics, OU=Information Technology, O=Extron Electronics, L=Anaheim, ST=California, C=US
Total downloads100
This version100
DeveloperExtron Electronics
Age ratingEveryone
What's new in v1.7.355
- FOX3 source support
- Simple area of interest support
- Support more than 10 canvases
- User Login using custom user name
- Simple area of interest support
- Support more than 10 canvases
- User Login using custom user name
Security scan
TRUSTED
- Developer signature verified 2025-11-18
- Signature SHA1 A4:D0:80:69:4E:AD:26:4F:46:3E:29:7A:FB:AF:7E:2F:94:34:D9:EC
- File MD5 425e9331f88a9eb06bec0a5c573eb9d0
How to install EMS-Quantum Ultra v1.7.355 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 8.2 MB of free storage.
- Grab com.extron.videowallkiosk_12201.apk — hit the Download button above (8.2 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 425e9331f88a9eb0…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.extron.videowallkiosk_12201.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=Extron Electronics, OU=Information Technology, O=Extron Electronics, L=Anaheim, 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 EMS-Quantum Ultra — tap Open on the install screen, or find the EMS-Quantum Ultra icon in your app drawer.
Common install errors for EMS-Quantum Ultra
- "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.