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I like my Flipper Zero, but what I hate is all the fake stuff that people looking for attention upload to TikTok. No, the Flipper Zero can't change gas station signs, can't copy credit and debit cards, and can't turn off the displays at your burger joint.
But that doesn't mean that the Flipper Zero can't do some very cool, useful things.
Over the past few months, I've been making use of the suite of hardware tools that are built into the Flipper Zero. What's built into this tiny toy-like tool?
There's a sub-GHz wireless antenna that can again capture and transmit wireless codes to operate wireless devices and access control systems, such as garage door remotes, boom barriers, IoT sensors, and even remote keyless systems.
RFID support allows it to read, store, and emulate a number of different RFID cards.
Note: I'm running third-party software on my Flipper Zero, this gives me access to a bunch of additional features. Loading third-party software doesn't invalidate your warranty and you can go back to the stock software at any time.
1. Testing car key fobs
The sub-GHz wireless antenna can pick up the signals from car key fobs (and can record them, although playing them back to modern cars won't unlock them because of a feature called "rolling codes" that changes the code with each use).
RFID cards and tags can be locked to prevent them from being overwritten, but the Flipper Zero can bypass some of these mechanisms. Here it is offering to unlock the card if I present it to a valid reader.
4. Bypassing Sentry Safe security
Yes, the Flipper Zero can bypass the security on some Sentry Safe electronic safes using an output from the GPIO.
5. Universal infrared remote control
The Flipper Zero has a built-in infrared module, and this in turn can be programmed to operate a wide range of devices, from TVs to AC units.
Another cool use of this infrared functionality is to test if infrared remote controls are working.
6. Automating scripts in a variety of platforms
Flipper Zero can act as a BadUSB device, which means that when connected to a port it is seen as a Human Interface Device (HID), such as a keyboard.
A BadUSB device can change system settings, open backdoors, retrieve data, initiate reverse shells, or do anything that can be achieved with physical access. This is done using a set of commands written in the Rubber Ducky Scripting Language, also known as DuckyScript.
7. Signal generator
The Flipper Zero can use the GPIO to output electrical signals and act as a signal generator. I last used this to simulate an ABS (antilock braking system) module on a vehicle to confirm that all the wiring and computer in the car were working.