> ## Documentation Index
> Fetch the complete documentation index at: https://c5tako.ziphers.space/llms.txt
> Use this file to discover all available pages before exploring further.

# Update firmware

> Update C5TAKO™ with Web Firmware Installer in Chrome or Edge.

Update C5TAKO™ firmware through the web, without installing additional software.

Use the [Web Firmware Installer](https://www.ziphers.space/flash) with Chrome or Edge.

## Before you begin

* Use a computer with Chrome or Edge.
* Prepare a **data-capable** USB cable, not a charge-only cable.
* Charge the battery sufficiently.
* Close programs that are using the device's serial port.
* Back up important files from Storage before updating.

<Warning>
  Do not unplug the cable, turn off the computer, or close the web page during firmware installation.
</Warning>

## Update steps

<Steps>
  <Step title="Open Web Firmware Installer">
    Go to [ziphers.space/flash](https://www.ziphers.space/flash).
  </Step>

  <Step title="Choose the board">
    Choose `ESP32-C5`, then select `Next`.
  </Step>

  <Step title="Choose firmware">
    Choose `C5 TAKO`, then select `Next`.
  </Step>

  <Step title="Choose a version">
    Choose the latest `C5 TAKO XIAO ESP32-C5` version and confirm that it shows `ESP32-C5` and `8MB Flash`.
  </Step>

  <Step title="Connect the device">
    Select the install page, then choose `Connect` and select C5TAKO™'s USB port in the browser dialog.
  </Step>

  <Step title="Install">
    After connecting, the firmware-install button becomes available. Follow the on-screen instructions and wait for completion.
  </Step>

  <Step title="Restart">
    When installation finishes, turn the device off and on once, then confirm it reaches the main menu normally.
  </Step>
</Steps>

<Info>
  📷 **Images to add:** Four screenshots: choose ESP32-C5, C5 TAKO, XIAO ESP32-C5 8MB, and the Connect screen.
</Info>

<Info>
  🎬 **Media to add:** The complete update from cable connection to restart, blurring port names and device-identifying information.
</Info>

## If the website cannot find the device

1. Use a data-capable USB cable.
2. Connect directly to the computer, not through a USB hub.
3. Close Serial Monitor, Arduino IDE, and any other program using the port.
4. Unplug the cable, wait about five seconds, then reconnect it.
5. Refresh the page and select `Connect` again.
6. If it is still not found, stop and contact the seller.

<Note>
  Version names on the website can change. Use `C5 TAKO`, board `ESP32-C5`, and `8MB Flash` as the main identifiers.
</Note>