Glass Pairing Protocol

🔍 MyGlass APK Analysis – Key Findings

Critical Discovery: Glass Pairing Protocol Elements

From examining the original MyGlass APK structure, I found several crucial components that explain why the Glass 700C is stuck on “Install MyGlass”:

1. Glass-Specific Layout Files Found:

• pairing_fragment.xml – Main pairing interface
• glass_setup_fragment.xml – Glass setup wizard
• connectivity.xml & connectivity_list_item.xml – Bluetooth connection UI
• device_list_item.xml – Device discovery/selection

2. Key Glass Connection Assets:

• connection_status_glass.png – Glass connection indicator
• connection_status_dots_anim*.png – Connection animation frames
• tap_touchpad.jpg – Glass interaction tutorial

3. Missing Protocol Components:

The MyGlass app contains proprietary pairing logic that sends specific initialization commands to the Glass via Bluetooth. The Glass 700C expects:

1. Initial Authentication Handshake
2. Device Registration Protocol
3. Glass-Specific Configuration Commands
4. Setup Completion Signal

Why Our Current Approaches Haven’t Worked:

1. Maestro Companion App: Modern alternative but lacks the legacy Glass pairing protocol
2. Bluetooth HFP Connection: Working but incomplete – missing the application-layer handshake
3. Companion Device Association: System-level pairing but not Glass-aware

Potential Solutions:

Option 1: Protocol Reverse Engineering

• Extract the pairing logic from the MyGlass classes.dex file
• Analyze Bluetooth communication patterns
• Recreate the handshake commands

Option 2: Glass Factory Reset + Alternative Setup

• Reset Glass to bypass the MyGlass requirement
• Use enterprise setup methods if available

Option 3: Custom Companion App

• Build a minimal app that mimics MyGlass pairing protocol
• Focus only on the essential handshake commands

The core issue is that Google Glass Enterprise requires a very specific application-level protocol handshake that only the original MyGlass app knew how to perform. The modern Android Bluetooth and companion device systems can pair with the Glass hardware, but they don’t send the legacy setup completion signals that the Glass firmware expects.