MDM Deployment Guide - DVR Time Traveler

Overview

📱

Managed Configuration Support

DVR Time Traveler supports 19 configuration settings that IT administrators can deploy remotely through their MDM console. All settings update in real-time without requiring app restarts.

✅

What MDM Can Control

Feature enable/disable
License key deployment
App behavior defaults
Security restrictions
Organization branding

❌

What MDM Cannot Access

User data (notes, patterns, reports)
Device ID (app-generated)
Subscription time remaining
Usage statistics
Investigation details

🔑 Enterprise Licensing

Setting	Type	Description
`enterprise_license_key`	String	Your organization's license key (Format: `DVRTT-XXXX-XXXX-XXXX`)
`organization_name`	String	Organization name displayed in Admin Settings

License Types

Trial

30 days, 10 devices

Annual

365 days per license

Perpetual

Never expires (government)

Example Configuration

{
  "enterprise_license_key": "DVRTT-1234-5678-90AB",
  "organization_name": "Acme Police Department"
}

🎛️ Feature Control

Setting	Type	Default	Description
`disable_notes_feature`	Boolean	false	Completely hides the Notes feature
`disable_patterns_feature`	Boolean	false	Completely hides DVR Pattern storage
`disable_in_app_purchases`	Boolean	false	Prevents all IAP (required with enterprise licenses)

💡 Best Practices

Data Security: Set disable_notes_feature: true if organization policy prohibits storing sensitive information on mobile devices

Password Compliance: Set disable_patterns_feature: true if security policy prohibits password storage

Cost Control: Set disable_in_app_purchases: true when using enterprise licenses

🖼️ Logo Management

Push organization logos directly to all devices using MDM configuration

Setting	Type	Description
`mdm_logos`	JSON Array	List of logos to push to devices (max 10)
`default_logo_id`	String	Auto-select a specific logo on first launch
`logo_position_locked`	Boolean	Prevent users from changing logo position
`logo_position_value`	String	Enforce position: `'left'` or `'right'`

Logo JSON Schema

mdm_logos Array Structure

{
  "id": "dept_badge_1",           // Unique identifier
  "name": "Department Badge",     // Display name in app
  "base64": "iVBORw0KGgo...",     // Base64-encoded PNG/JPEG
  "auto_adjust": true             // Auto-resize (recommended)
}

📋 Logo Deployment Process

1

Prepare Logo

PNG or JPEG, recommended size: 200x200 to 400x400 pixels

2

Convert to Base64

Use online tool: base64-image.de

Or command line: base64 -i logo.png

3

Configure in MDM

Add logo JSON to mdm_logos array in your MDM console

4

Automatic Sync

App syncs logos in real-time when config is pushed

🎨 Auto-Adjust Feature

`auto_adjust: true` (Recommended)

App automatically resizes logo for PDF rendering
Maintains aspect ratio
Optimized for 1.8" x 2.2" PDF output
Compresses to PNG format

`auto_adjust: false`

Renders logo exactly as-is
No resizing or optimization
Use only if logo is pre-sized perfectly

Complete Logo Configuration Example

{
  "mdm_logos": [
    {
      "id": "dept_badge_1",
      "name": "Department Badge",
      "base64": "iVBORw0KGgoAAAANSUhEUgAA...FULL_BASE64_HERE...CYII=",
      "auto_adjust": true
    },
    {
      "id": "traffic_unit",
      "name": "Traffic Unit Logo",
      "base64": "iVBORw0KGgoAAAANSUhEUgAA...ANOTHER_BASE64...CYII=",
      "auto_adjust": true
    }
  ],
  "default_logo_id": "dept_badge_1",
  "logo_position_locked": true,
  "logo_position_value": "left"
}

⚙️ App Behavior Settings

Setting	Type	Options	Default
`force_24_hour_time`	Boolean	true / false	false
`default_language`	String	'en', 'fr'	'en'
`lock_language_selection`	Boolean	true / false	false

Language Lock Example (Quebec Agencies)

{
  "default_language": "fr",
  "lock_language_selection": true
}

Forces French language and prevents users from changing it

📊 Data & Privacy

Setting	Type	Default	Range	Description
`disable_crash_reporting`	Boolean	false	—	Disables Sentry crash telemetry
`max_report_history_days`	Integer	90	7-365	Auto-delete reports older than X days

🔒 Privacy Guarantee: The app never sends user data (notes, patterns, reports) to external servers. All data stays on-device with AES-256 encryption.

🔒 Security Settings

Setting	Type	Default	Description
`require_admin_password`	Boolean	false	Forces users to set admin password before accessing feature controls
`disable_backup_export`	Boolean	false	Prevents users from exporting data

📞 Support & Customization

Setting	Type	Description
`custom_support_email`	String	Override support email with your IT help desk
`custom_support_url`	String	Custom help desk URL or internal wiki
`deployment_notes`	String	Internal notes for IT reference (not visible to users)

📝 Real-World Configuration Examples

Police Department (Full Lock-Down)

{
  "enterprise_license_key": "DVRTT-1234-5678-90AB",
  "organization_name": "Acme Police Department",
  "disable_in_app_purchases": true,
  "disable_patterns_feature": true,
  "mdm_logos": [{
    "id": "dept_patch",
    "name": "Department Patch",
    "base64": "iVBORw0KGgo...",
    "auto_adjust": true
  }],
  "default_logo_id": "dept_patch",
  "logo_position_locked": true,
  "logo_position_value": "left",
  "max_report_history_days": 30,
  "custom_support_email": "[email protected]"
}

Multi-Division Agency

{
  "enterprise_license_key": "DVRTT-XXXX-XXXX-XXXX",
  "organization_name": "Metro Police",
  "mdm_logos": [
    {
      "id": "traffic",
      "name": "Traffic Division",
      "base64": "iVBORw0...",
      "auto_adjust": true
    },
    {
      "id": "patrol",
      "name": "Patrol Division",
      "base64": "iVBORw0...",
      "auto_adjust": true
    },
    {
      "id": "k9",
      "name": "K9 Unit",
      "base64": "iVBORw0...",
      "auto_adjust": true
    }
  ],
  "logo_position_locked": false,
  "custom_support_email": "[email protected]"
}

Officers can choose their division logo. Logo position can be adjusted by user.

Quebec Agency (French-Only)

{
  "enterprise_license_key": "DVRTT-XXXX-XXXX-XXXX",
  "organization_name": "Service de Police",
  "default_language": "fr",
  "lock_language_selection": true,
  "force_24_hour_time": true,
  "disable_in_app_purchases": true,
  "custom_support_email": "[email protected]"
}

Minimal Configuration

{
  "enterprise_license_key": "DVRTT-1234-5678-90AB",
  "disable_in_app_purchases": true
}

Simplest deployment: Just license key and disable IAP.

🛠️ Platform-Specific Configuration

Google Workspace

Log in to Google Admin Console
Go to Devices → Mobile & endpoints → Apps → Managed Google Play apps
Select DVR Time Traveler
Click Managed configurations
Paste your JSON configuration
Assign to user/device groups

Microsoft Intune

Open Microsoft Endpoint Manager
Go to Apps → App configuration policies → Add
Platform: Android Enterprise
Select DVR Time Traveler
Configuration format: Use configuration designer
Add configuration keys manually or paste JSON
Assign to groups

VMware Workspace ONE

Navigate to Apps & Books → Applications → Native
Select DVR Time Traveler
Go to App Configuration tab
Paste JSON configuration
Save and push to devices

Test DPC (Testing)

Install Test DPC from Play Store
Set up managed work profile
Install DVR Time Traveler in work profile
Go to Policy Management → App Restrictions
Select DVR Time Traveler
Add configuration JSON
Test settings in app

Download Test DPC

🔧 Troubleshooting

❓ Settings Not Applying

Check:

App installed from Managed Play Store (not regular Play Store)
Device properly enrolled in MDM
Configuration pushed to device
App restarted after config change

Verify via ADB: adb shell dumpsys restrictions

❓ License Key Not Recognized

Verify:

Key format: DVRTT-XXXX-XXXX-XXXX (19 characters with dashes)
Key is active (not expired)
App package ID matches license
No typos in key

❓ Logos Not Appearing