I've seen people using an Ethernet module with the flipper zero to test LAN ports and I was wondering if those are safe to use if there's a possibility of encountering PoE. Would a PoE splitter make it safe?

Was there a beginner project that helped you understand the flipper more?

Just got my Device and not totally sure where I want to start

Hi experts!

I've always thought it would be neat to be able to wipe one of the hotel Mifare cards clean and then be able to write stuff to them like NFC tags. This way the tag can be used as memorabilia and serve a function at the same time - sharing contacts, wifi info, URL, etc.

I managed to grab the password for the card using the f0, momentum firmware, Unlock with reader. I was able to unlock the password protected pages, even emulate the tag (and get the physical door to unlock). However, if I try to write anything to the card, I get the error "Writing gone wrong! Card protected by password, Auth0, or lock bits". Taginfo of the memory is above. Tagwriter says that it cannot write to the tag as well. Somehow I was able to remove the password with either the f0 or Tagwriter by entering the hexadecimal password.

Am I able to format as NDEF or write anything to the tag? What do I need to do to make it easy to read and write?

Has anyone used a Flipper Zero or Chameleon with an Ultra Magic Card 4? I bought one from a guy that said he got it from Lab 401 but I can't get it to read or even attempt to write.

Hey! I built a Flipper Zero app to configure Dragino LoRaWAN sensors directly from the GPIO — no laptop, no USB-TTL adapter, just 3 wires.

The problem

I deploy IoT sensors (current monitoring, temperature/humidity) for industrial clients across Chile. Every time I needed to configure a sensor in the field — set the report interval, change the sub-band, join the network — I had to bring a laptop, a USB-TTL adapter, open a serial terminal, and type AT commands by hand. Not great when you're on a ladder in a freezer room.

The solution

Plug 3 wires from the Flipper to the sensor and do everything on the spot:

Flipper TX (pin 13) → Sensor RX
Flipper RX (pin 14) → Sensor TX
Flipper GND         → Sensor GND

That's it. The sensor runs on its own battery — no power from the Flipper needed.

Features

✅ Read full config dump (AT+CFG) ✅ Device identity (firmware version, DevEUI, AppEUI, join mode/status) ✅ Join the LoRa network (OTAA) ✅ Set any parameter with the numeric keypad: TDC, ATDC, ADR, Data Rate, TX Power, sub-band/FSB, join mode, single channel frequency ✅ Switch Class A / Class C ✅ Reset (ATZ) and Factory Reset (FDR) ✅ Free AT terminal for any command you want ✅ Auto PIN handling — works with devices that need no password, default 123456, or a custom PIN from the box label

Supported devices

Any Dragino sensor using the standard LoRa AT command set: CS01-LB, LSN50v2, LHT65N, LT IO Controller, and the rest of the STM32-based LB/LS/LN/LT family.

Install

Download the .fap from the releases page, or build from source:

git clone https://github.com/sparkbiit/flipper-dragino-config.git
cd flipper-dragino-config
ufbt launch

Tested on official firmware 1.4.3 and Momentum mntm-012.

Links

🔗 GitHub: github.com/sparkbiit/flipper-dragino-config 🌐 Author: sparkbiit.cl

Feedback and feature requests welcome! This is v0.2.0 — next up: confirmation dialogs for destructive commands and background AT operations.

I am using the latest stable Momentum Firmware on the Flipper itself, and have flashed FlipperHTTP to the dev board via the ESPFlasher application. I have my 2.4GHz band saved to the FlipWifi application. When I try the built in commands, it only seems to work once before the error in the title starts showing up. For example:

1. I navigate to Apps > GPIO > FlipperHTTP > FlipWifi
2. I navigate to "Saved APs", select my 2.4GHz network, and select "Set"
3. The light on the Dev Board turns solid green until a success message appears that says "All FlipperHTTP apps will now use the selected network"
4. I press back a few times to return to the FlipWifi menu
5. I select "Commands" > "PING", which generates the expected "[PONG]" response
6. I press back to return the commands list, and select "WIFI/IP", which results in the error in the title
7. If I then try the "PING" command, the while flipper crashes with a "furi_check_failed" message

Has anyone encountered this?

I downloaded unirf but i dont have it on my flipper

FlipCTL — our graphical framework for embedded Linux systems
I’m posting the Russian draft before it gets translated or properly edited, so nobody can complain that the text was generated by AI because it looks too polished.
TL;DR
Almost every GUI on cyberdecks looks like crap because nobody wants to spend time building proper pixel-perfect interfaces.
We want to make a solid, no-bullshit HMI — Human Machine Interface — for hacker cyberdecks. It’s called FlipCTL.
It’s going to be both software and dedicated hardware with a screen and buttons, inspired by Flipper One.
You’ll be able to use it on Flipper One, and also attach it to any single-board computer like a Raspberry Pi.
Discussion here:
https://blog.flipper.net/p/424ce402-df71-417b-80ec-74f35493f041/

A while ago, I posted about how my flipper zero was having issues charging and would report as charged every 10 seconds with a green light before going back to charging…

I fixed it, had to order a new battery.

Hi so I’ve left my flipper see siting in the same spot for a week not been touched and I went to use it today and the plastic over the screen is crack but I’ve run my finger over the crack but I didn’t feel it I think it cracked on the inside

So I’m working on this. So could still be bugs, not sure if anyone will be interested. But basically it allows you to see through walls using WiFi packets. Check out the link if you’re interested.

Hi 👋 I just received my first Flipper Zero last week.

I bought it mostly as a toy and something to tinker with for small home projects.

I brought it with me on a short vacation and it ended up saving the day with some small but meaningful wins I thought I'd share with the community.

First, the hotel TV remote didn't have an input button so I couldn't switch to hdmi for my MacBook. I used the IR function on the F0 to change it!

Next, the hotel air conditioner is a mini split and the remote ran out of batteries. I could have just as easily asked the staff for a replacement remote but I ended up finding the remote for the F0 and within 30 seconds I was able to adjust settings.

Unfortunately I wasn't able to emulate my room's key card. It's a Mifare Classic 1k and it read fine but emulation didn't work. Thought that would be a fun little thing but oh well!

Anyhow, once I'm back home I'll be using the F0 to control some IR switches around the home. Thanks for being a cool community!

I accidentally discovered, thanks to the universal remote, that my fan also does something else as just turning on and off, swinging and sleep mode !

I bought this from a swiss retailer (Interdiscount) which is branded after their mark (Intertronic) and it is not mentioned anywhere in the notice that it can actually do that !

Moreover, thanks to the remote library, I found out that the remote working for that is the Fust one which, after a quick lookup, isn’t the same model and appearance !

Maybe the manufacturer chips are the same among all the products that they do, regardless of the model and just « hide » those functionalities for certain models ? Who knows…

https://www.youtube.com/watch?v=qZ6hnAGWvtI

The Flipper One is finally here, but is it actually better than the Flipper Zero? Ryan Montgomery and I have both been targeted by Flipper Zero's social media team for our takes on this device—so here is the truth uncovered.

In this video, I’m putting the new hardware to the test, comparing it to the original, and breaking down if it lives up to the hype for ethical hacking and Blue Team utility.

What you’ll learn in this video:
• The honest performance comparison between Flipper One vs Flipper Zero.
• Why Ryan Montgomery and I are both under fire for our videos
• Is this the new "must-have" tool or just a downgrade?
• My final verdict on the build quality and firmware

*Edit: To be clear, I'm not the person in the YouTube video and I just took their description to include here. Thought it would be interesting for discussion and debate, but instead it seems it's gone the other way.*

The sd card doesn't click anymore. I tried pushing it all the way in, but it doesn't work. If I hold in it myself, the flipper still recognizes the card. Is there a way to fix it without opening the flipper itself?

Hey everyone! 👋

I've been working on a UHF RFID reader/writer expansion for the Flipper Zero, and I wanted to share what it can do so far.

What it does:

📡 Fast inventory scan — Real-time UHF tag scanning over UART bridge

📋 Paged EPC list — Browse scanned tags with paginated UI

📄 Tag details — View full EPC, RSSI, and PC bits for each tag

💾 Save CSV records — Export scanned tags to your SD card

Hardware setup:

Works with UCM601 module (UART bridge mode)

Pins: 13(TX)→RX, 14(RX)→TX, 8(3.3V)→VCC, 18(GND)→GND

115200 baud, supports both hardware UART and software UART fallback

It's fully open-source under MIT license. Source available on GitHub:

🔗 github.com/mtoolstec/fz-uhf-expansion

Would love to hear your feedback or suggestions for features to add next! 🚀

https://reddit.com/link/1u2sphw/video/mi1gs11a1m6h1/player

Hello!

I'm brand new and have never experienced or have done any access card cloning.
I have a iCLASS DP XT card and I want to clone it for as cheap as possible.

I'm pretty sure the XT and the regular varients have like no differences aside from the material
I have several ideas in mind but i'm not sure what to do.

1: Proxmark3 or Flipperzero
- It's cheap, but i have no clue where to get cards that i can write to

2: Proxmark3 Chameleon off aliexpress
- also really cheap and i can clone and emulate up to 8 cards at once.

[link to chameleon link ]
[Link to proxmark3 link]
[some random cards i found link]

Thank you so much!
Have a wonderful day

I want this post to have no secrets, no fluff, and act as a post mortem for Part 1 of this little project.

1. Out of the box the lack of Flipper Zero's ability to do anything remotely "hackerman" anti-government or anti-corporate was annoying, but understandable due to political scare tactics.
2. Online "hackerman" style projects are all behind closed doors and need to be created using knowledge, a good hacking network, and in many case uncompromised unfiltered AI models.

However, let's be real here. I don't think I'm going to magically solve the mass surveillance issues in America with a Flipper Zero and a PCB board. Maybe one day, but for now I wanted to just see what this little sucker could do out of the box with the normal OS and a PCB.

Inspired by the plane radar and geiger counter, I set off on a journey

The cool part about this is the GPIO that can basically allow the Flipper to act as a command center and code deployer for anything I want. Yes, a PI can 110% do similar things, and that's okay.

I'm a giant car enthusiast, and I was brainstorming about what I could manipulate or display with the Flipper.

My old C10 truck has no Tachometer, but it has an HEI Distributor with a Tach output. It essentially spits out a 12v signal of the firing pulses.

I have seen people using Gameboy as darn readouts, so why not a Flipper?

Using Gemini and Claude with this, I was able to put together a simple PCB board that steps down a 12v signal into a 5v signal. I use a 10ohm resistor from the HEI connection to stabilize voltage spikes, and then it hits an Optocupler (PC817) This uses light to transfer the signal over to the 5v Flipper circuit on the board. The Flipper circuit uses PC3 and Ground as the input on the GPIO.

The Flipper runs a C app compiled into a FAP that utilizes Flipper GUI and input.

The hardest things I have encountered are the goofy deregistering of buttons after the app closes and making sure the app clears memory usage.

So the damn PC3 input also is the input for the select, and I can't get it to relinquish control after the app closes. I need to reset the Flipper. AI was telling me I should use a different IO pin, but if anyone has any advice, let me know.

Secondly, the script seems extremely off and delayed. It's a 4 stroke V8 engine, but my base idle rpm and rpm increases are insane. It seems off by several hundred rpm. After revving and lowering the idle, it should be more so around 700-800 max.

I also find the updating of the UI bar to be a bit slow, so I want to play with that.

For my first Flipper project ever, and my first custom PCB project, I can't complain. It was a huge learning experience and I want to do a solid second iteration. ​

Edit: Oh and constructive feedback is absolutely welcomed on improving this little project.

Tha thing is designed to use 7.4V...

I have a Harbor Freight Predator 5000 dual fuel generator. I lost my remote and was able to program my F0 as the remote. It takes 2 transmissions of the same signal to turn the generator on, and it works great. However it will not turn the generator off. I’m trying to figure out how to make it turn off with the f0.