MDM Deployment Guide - DVR Time Traveler

Overview

📱

Managed Configuration Support

DVR Time Traveler supports 15 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
Activation code deployment
App behavior defaults
Security restrictions
Organization logo

❌

What MDM Cannot Access

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

🔑 Agency Licensing

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

License Type

Agency License

Annual subscription — duration determined at purchase. Contact us for pricing and renewal terms.

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	true	Prevents all IAP (required with agency activation codes)

💡 Best Practices

Data Security: Set disable_notes_feature: true if the agency restricts the "Notes" feature

Password Compliance: Set disable_patterns_feature: true if the agency restricts the "PW/Patterns" feature

Cost Control: In-app purchases are disabled by default for MDM-managed devices. Set to false only if your agency uses individual store purchases.

🏢 Agency Mode

Control app terminology and features to match your organization type — law enforcement or investigation

Setting	Type	Default	Description
`agency_mode`	String	law_enforcement	App persona. Controls terminology, PDF report headers, and multi-agent slot availability. Values: `law_enforcement` \| `investigation`

💡 How Agency Mode Works

Law Enforcement (default): Uses "Officer", "Badge Number", "Agency", and "Court Report" terminology. Multi-agent slots (Officer 1 / Officer 2) are enabled for shared patrol devices.

Investigation: Uses "Investigator", "Investigator ID", "Organization", and "Investigation Report" terminology. Multi-agent slots are disabled (one user per device).

Priority: MDM config overrides license policy, which overrides the user's local setting. If set via MDM, users cannot change their mode.

Example — Investigation Firm

{
  "enterprise_license_key": "DVRTT-XXXX-XXXX-XXXX",
  "organization_name": "Acme Investigations Inc.",
  "agency_mode": "investigation",
  "disable_in_app_purchases": true,
  "custom_support_email": "[email protected]"
}

🖼️ 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 (max 512×512 px)
}

📋 Logo Deployment Process

1

Prepare Logo

PNG or JPEG, max 512×512 pixels recommended

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

Complete Logo Configuration Example

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

⚙️ Report Language Settings

Setting	Type	Options	Default
`report_language_locked`	Boolean	true / false	false
`report_language_value`	String	'en', 'fr', 'es', 'ar', 'de', 'it'	— (follow app)

PDF Generation Language Lock Example (Quebec Agencies)

{
  "report_language_locked": true,
  "report_language_value": "fr"
}

Forces French for PDF report generation. Officers can still change the app interface language.

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

📞 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..."
  }],
  "default_logo_id": "dept_patch",
  "logo_position_locked": true,
  "logo_position_value": "left",
  "custom_support_email": "[email protected]"
}

Multi-Division Agency

{
  "enterprise_license_key": "DVRTT-XXXX-XXXX-XXXX",
  "organization_name": "Metro Police",
  "disable_in_app_purchases": true,
  "mdm_logos": [
    {
      "id": "traffic",
      "name": "Traffic Division",
      "base64": "iVBORw0..."
    },
    {
      "id": "patrol",
      "name": "Patrol Division",
      "base64": "iVBORw0..."
    },
    {
      "id": "k9",
      "name": "K9 Unit",
      "base64": "iVBORw0..."
    }
  ],
  "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 PDF Reports)

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

Enforces French for all PDF reports. Officers may still change the app interface language themselves.

Complete Configuration (All 15 Settings)

{
  "enterprise_license_key": "DVRTT-XXXX-XXXX-XXXX",
  "organization_name": "Acme Police Department",
  "disable_notes_feature": true,
  "disable_patterns_feature": true,
  "disable_in_app_purchases": true,
  "report_language_locked": true,
  "report_language_value": "fr",
  "mdm_logos": [
    {
      "id": "dept_badge",
      "name": "Department Badge",
      "base64": "iVBORw0KGgo...BASE64..."
    }
  ],
  "default_logo_id": "dept_badge",
  "logo_position_locked": true,
  "logo_position_value": "left",
  "custom_support_email": "[email protected]",
  "custom_support_url": "https://help.acmepd.gov",
  "agency_mode": "law_enforcement",
  "deployment_notes": "Deployed 2026-01 – IT ticket #5234 – Approved by Cpt. Smith"
}

All 15 available settings shown. mdm_logos counts as one array setting and can hold up to 10 logos.

🛠️ Platform-Specific Configuration

📥 Download Configuration Schemas

Import the official managed configuration schema into your MDM console to get field descriptions, validation, and auto-complete when configuring DVR Time Traveler.

📄 iOS — AppConfig.xml 📄 Android — app_restrictions.xml

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

🔄 Replacing a Device (Freeing a Slot)

💺

How agency slots work

Your agency license includes a fixed number of device slots (seats). Each MDM-enrolled device that activates the app consumes one slot. When every slot is in use, a new device will report “License has reached maximum device limit” until a slot is freed.

🔄

Self-service: "Release This Device"

MDM-managed devices now have a “Release This Device” button in the app's subscription screen. When an officer is handing back or replacing a phone, they (or you) can tap it to free its seat instantly — no email to SDTech required. The freed seat is immediately available for the replacement device you enroll in MDM.

This is a soft release: if the button is tapped by mistake, the device simply re-claims its seat the next time the app is reopened — as long as it is still MDM-enrolled. To retire a device permanently, un-enroll it from the app in your MDM console; that withdraws its license key so it can no longer reclaim a seat.

Prefer to keep seat management under IT control only? Self-release can be disabled per license — contact SDTech at [email protected] and we will turn it off for your license. Once disabled, only SDTech can free a seat on your behalf (see Option B below).

Option A — Self-service release (fastest)

Enroll and configure the replacement device in your MDM as usual (push the enterprise_license_key and any managed settings).
On the device being retired, open the app, go to the subscription screen, and tap “Release This Device.” Its seat is freed immediately.
The replacement device activates automatically on its next launch and takes the freed seat.

💾 Back up first: before releasing, the app reminds the officer to export their notes and saved DVR passwords/patterns. This data is stored only on the device and does not move with the seat — back it up via Backup & Restore if it is needed.

Option B — Ask SDTech to free the slot

If self-release is disabled for your license, or you no longer have the old device on hand, we can free the seat for you:

Enroll and configure the replacement device in your MDM as usual.
Email SDTech at [email protected] to release the retired device's slot. Include:
- Your enterprise_license_key (or organization name).
- Which device to remove — the old device name/model and the user/officer it belonged to.
SDTech releases the slot from the license dashboard, freeing exactly one seat (or all seats at once for a full fleet re-image).
The replacement device activates automatically on its next launch and takes the freed slot.

✔️

Good to know

MDM (agency) licenses are exempt from migration cooldowns and swap limits — device churn from re-imaging is never throttled.
If a user simply gets the same device back (same install), it reactivates in its original slot — no action needed.
For agencies with frequent turnover, ask us to provision a small buffer of extra slots so routine swaps don't hit the limit, and we can batch-clean retired devices periodically.
Remind users to export/back up their case data before a device is wiped — investigation data is stored only on the device and cannot be recovered by SDTech.

🔧 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

❓ Activation Code Not Recognized

Verify:

Key format: DVRTT-XXXX-XXXX-XXXX (20 characters with dashes)
Key is active (not expired)
App package ID matches license
No typos in key

❓ Logos Not Appearing