💬 DIY Flipper Zero (OLED) — Q&A, Troubleshooting & Build Help Thread

[a0gsoft]

🛠️ Welcome to the DIY Flipper Zero Q&A & Troubleshooting Thread!

If you are building, wiring, or flashing the DIY Flipper Zero (SSD1306/SH1106 OLED + MCP23017 edition), this is the place to ask questions, report build issues, or share troubleshooting tips!

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📋 Before You Post

Please check these common resources first:

1. 📖 Main Project README — Check pinouts, I2C pull-ups, and schematic diagrams.
2. 🔌 I2C Pull-up Resistors: Make sure you have 4.7kΩ pull-up resistors on SCL (PA9) and SDA (PB9) lines to 3.3V! Without pull-ups, the MCU may freeze on boot.
3. ⚡ MISO Line Sharing: Remember that the ST25R3916 NFC module requires a dedicated MISO line (PB4), while CC1101 and SD card share PA6.
4. 🔋 Battery / Power: If using INA219/INA226, ensure the I2C address is 0x40.

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❓ How to Ask for Help

When asking a question, please include:

• 📷 Clear photos of your wiring / PCB setup.
• 🖥️ OLED display model (SSD1306 or SH1106, 0.96" or 1.3").
• 💻 What flashing method you used (qFlipper DFU or STM32CubeProgrammer).
• 📝 Description of what happens (screen stays black, buttons don't react, etc.).

We are glad to help you get your DIY Flipper up and running! 🐬⚡

[OPX-Aminul]

Thank you so much for the detailed explanation and your amazing work on this project! I really appreciate your effort in building this. Is there any Telegram group, Discord, or social media channel where I can follow your updates or stay in touch with you?

[a0gsoft]

Hi @OPX-Aminul!

Thank you so much for the kind words and support! 😊

I don't run a separate personal channel yet, but I actively use and follow the FCFZ project community channel
on discord
You can also always reach me, share ideas, and follow firmware updates right here on GitHub:

• Post in our Discussions thread anytime.
• Hit Watch -> Releases on this repo to get notified whenever a new build is out.

Glad to have you around!