Best Practices

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Structured guides, how-to articles, and technical runbooks curated by the Esper team. Based on real resolved support cases.

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App stuck in "Failed to Download" loop due to multiple pending install commands: reboot device to clear command queue
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eSIM on Samsung devices running Android 15: Knox Service Plugin support
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"This device is not managed by Google Play Services" during provisioning: clear stale EMM binding and re-bind Android Enterprise account
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Kiosk Mode reverting to Multi-App — fix Blueprint and re-converge
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EMM Binding fails with "Session expired. Please start the enrollment process again." — use Incognito session and complete enrollment without interruption
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Windows DeepLink enrollment fails with "couldn't auto-discover a management endpoint" — issue self-resolved, root cause unconfirmed
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Device provisioned to wrong tenant: remove serial from production template and reprovision
  • Esper Support
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Flexible Manager device setup: multi-app mode with Play Store access and app notification control
  • Esper Support
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USB MIDI unavailable when connected device controls USB mode — workaround steps
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Managed Google Play binding fails — complete Android Enterprise enrollment
  • Esper Support
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MAC address randomization during provisioning: causes and workaround
  • Esper Support
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iOS devices showing as registered (inactive): re-enroll via Apple Business Manager
  • Esper Support
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Device stuck in "Registered" state: how to complete provisioning and move to "Onboarded"
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Firewall allowlisting for Esper-managed devices: URLs and ports instead of IP whitelisting
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Remote Viewer connection fails: WebRTC and firewall troubleshooting
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App installation conflict: Play Store version blocking enterprise build installation
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Custom Launcher App and Custom Boot Audio Support in Esper Kiosk Mode
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Device stuck at provisioning Step 1 of 3: use hidden menu reset and alternate network to recover
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App install fails with "Admin doesn't allow installation from unknown sources" error during Blueprint convergence
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App install command times out on Motorola devices: switch networks, reboot, or use API to disable package directly
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File Manager shows blank/empty folders: "failed to fetch files" error in Esper Console
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Remote Viewer initializes then immediately disconnects on newly provisioned Zebra devices: apply Esper Software Update
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Factory Reset command stuck in "Command Initiated" state when device is offline
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NFC tag scan plays sound but does not launch app on Esper-managed devices: investigation steps and Esper configuration to check
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APNS Certificate Renewal Fails: Mismatched Apple ID Causes Upload Error
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Background (headless) app not auto-starting after reboot in Kiosk mode: set app as launchable-hidden to ensure BOOT_COMPLETED handling
  • Esper Support
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Power button shutdown menu appears on locked-down devices — suppress it with allowPowerOff
  • Esper Support
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Apps missing from Blueprint or group — upload to App Library first
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POS app loses input focus (appears frozen) when Esper stack fires `io.esper.remoteviewer` or related agent activity
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Kiosk mode offline troubleshooting: use Hidden Dock to access Esper Settings and Wi-Fi without network connectivity
  • Esper Support
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