Title: FAQ
Description: Frequently asked questions about GhostESP setup, credentials, and troubleshooting.
URL: /latest/getting-started/faq/
Version: latest
Section: Getting Started
Search index: /search-index.json

# FAQ

> Frequently asked questions about GhostESP setup, credentials, and troubleshooting.

## On this page

- [Frequently Asked Questions](#frequently-asked-questions)
- [1. What Are the Default Network Credentials?](#1-what-are-the-default-network-credentials)
- [2. What Are the Default Credentials for the Web Interface?](#2-what-are-the-default-credentials-for-the-web-interface)
- [3. How Do I Access the Web Interface?](#3-how-do-i-access-the-web-interface)
- [4. Why Don’t the Default Credentials Work for the Web Interface?](#4-why-dont-the-default-credentials-work-for-the-web-interface)
- [5. How Do I Flash My Board?](#5-how-do-i-flash-my-board)
- [6. Can I Upload Custom Evil Portal HTML over Serial or from My Flipper Zero?](#6-can-i-upload-custom-evil-portal-html-over-serial-or-from-my-flipper-zero)
- [7. My Board Isn’t Currently Supported. Will You Add Support?](#7-my-board-isnt-currently-supported-will-you-add-support)
- [8. Why Does My Connection to the GhostESP AP Drop When Issuing Wi-Fi Commands?](#8-why-does-my-connection-to-the-ghostesp-ap-drop-when-issuing-wi-fi-commands)
- [9. I’m Not Seeing Any Output When Connecting via Serial.](#9-im-not-seeing-any-output-when-connecting-via-serial)
- [10. Why Won’t My SD Card Work?](#10-why-wont-my-sd-card-work)
- [11. Do I Need to Install ESP-IDF or Build from Source?](#11-do-i-need-to-install-esp-idf-or-build-from-source)
- [12. Which Variant Do I Choose in the Web Flasher?](#12-which-variant-do-i-choose-in-the-web-flasher)
- [13. I Already Flashed an Older Version. How Do I Update?](#13-i-already-flashed-an-older-version-how-do-i-update)

---

# Frequently Asked Questions
### 1. What Are the Default Network Credentials?
- SSID: GhostNet
- Password: GhostNet
### 2. What Are the Default Credentials for the Web Interface?
- Authentication is off by default.
- If you enable it with webauth on, the defaults are:
Username: GhostNet
- Password: GhostNet
### 3. How Do I Access the Web Interface?
- Connect to the GhostNet Wi-Fi network.
- Open your browser and visit:
[ghostesp.local](http://ghostesp.local)
- or [192.168.4.1](http://192.168.4.1)
### 4. Why Don’t the Default Credentials Work for the Web Interface?
- The web interface uses the same credentials as your Wi-Fi AP.
- If you’ve changed your Wi-Fi SSID or password, your web interface credentials also change.
- To disable authentication, open the GhostESP terminal or a [serial console](https://ghostesp.net/serial) and run webauth off, then restart the device.
Note
Both the AP and web authentication require a password of at least 8 characters and treat an 8-character password the same way, so there is no length mismatch between the two.
### 5. How Do I Flash My Board?
- See the [Installation Guide](/latest/getting-started/installation-guide/).
- Use the web flasher at: [https://ghostesp.net/flasher](https://ghostesp.net/flasher)
### 6. Can I Upload Custom Evil Portal HTML over Serial or from My Flipper Zero?
- SD card: Place custom HTML in /ghostesp/evil_portal/portals on your SD card.
- Flipper Zero App: You can upload simple HTML (max 2048 bytes) directly via the Flipper companion app.
### 7. My Board Isn’t Currently Supported. Will You Add Support?
- Unless something is said otherwise, no. Feel free to do it yourself-we accept and appreciate PRs.
### 8. Why Does My Connection to the GhostESP AP Drop When Issuing Wi-Fi Commands?
- The ESP32 can’t operate as both an Access Point and Wi-Fi Client at the same time.
Switching modes will disconnect your device from the AP.
### 9. I’m Not Seeing Any Output When Connecting via Serial.
- The firmware is silent unless a command is running.
- Try sending the help command to verify your connection or reconnecting; sometimes you will have a bad connection.
### 10. Why Won’t My SD Card Work?
- “Generic” firmware builds include SD card support by default; use sd_config to see the pins or sd_pins_spi <cs> <clk> <miso> <mosi> to set SPI pins and sd_save_config to save the pin config to NVS.
- Ensure your SD card is formatted as FAT32.
- Try using a SanDisk brand SD card 32GB or less.
### 11. Do I Need to Install ESP-IDF or Build from Source?
- No. Flashing a released build needs nothing but a browser: see the [Installation Guide](/latest/getting-started/installation-guide/).
- Building from source is only required if you are changing firmware code or adding a board. See [Environment Setup](/latest/development/environment-setup/) if that is what you want to do.
### 12. Which Variant Do I Choose in the Web Flasher?
- The flasher asks for the chip family, not the board name. Look your board up in the Chip column of [Supported Hardware](/latest/getting-started/supported-hardware/).
- Choosing the wrong chip is the most common reason a board flashes but never boots.
### 13. I Already Flashed an Older Version. How Do I Update?
- See [Firmware Updates](/latest/getting-started/firmware-updates/) for the OTA and manual options available for your board.