Using Flipper Zero to Analyze and Clone Gate Remote Signals

Property gates and garage doors using older fixed-code remotes can be analyzed and replicated with Flipper's Sub-GHz radio. This covers the process for remotes you own.

Identifying Your Remote's Frequency

Most residential gate/garage door remotes use:

• 315 MHz (North America, older)
• 390 MHz (some North American systems)
• 433.92 MHz (most common globally)
• 868 MHz (Europe)

Check the back of the remote — frequency is often printed.

Frequency Scanning

If not labeled:

1. Sub-GHz → Frequency Analyzer
2. Press button on remote
3. Flipper shows active frequencies — your remote's frequency is the spike
4. Note the frequency

Capturing the Signal

1. Sub-GHz → Read → set to your identified frequency
2. Press button on remote while Flipper is reading
3. Signal captured — Flipper shows protocol (Princeton, CAME, Nice FLO, etc.)
4. Save with a name

Emulating (Fixed Code Remotes Only)

1. Open saved signal
2. Send — Flipper transmits the signal
3. Point at the gate receiver at normal range

Works reliably on: Most fixed-code remotes made before ~2015

Rolling Code Systems (Cannot Clone)

Modern systems (LiftMaster Security+ 2.0, Chamberlain myQ, FAAC with rolling codes) change the code with every press. Flipper captures the code but replay is rejected.

How to identify rolling code: Remote says "Security+" or system was installed after ~2010 and doesn't open on replay.

Backup Use Case

The legitimate use: backup your own gate remote signal. If the remote dies and the original is discontinued, your saved signal can be used temporarily while sourcing a replacement.

Signal Library Organization

Organize saves by location:

• SD/subghz/saved/Home_Gate.sub
• SD/subghz/saved/Shop_Garage.sub
• SD/subghz/saved/Storage_Unit.sub