Leica D-LUX 4 Firmware Update Guide V2.2

About this manual

This guide shows how to prepare an SD card, download the correct firmware file, copy it to the card, and install the update on the Leica D‑LUX 4 camera. It includes safety notes such as not using the camera to download the file and ensuring the battery is fully charged.

The process consists of formatting the SD card in the camera, downloading the file DLX4_220.BIN (≈6 MB) from the supplier website, copying it to the root of the card, and then running the update from the camera’s menu. After confirming the prompt, the update completes in about 5‑10 seconds. This manual is written in Chinese.

What's inside

• Preparation
• Formatting the SD Card
• Downloading the Firmware File
• Copying Firmware to SD Card
• Running the Firmware Update

Specifications

Frequently asked questions

How do I format the SD card before updating?

Turn on the camera, press MENU, go to Settings, select Format, and confirm the format.

What is the required firmware file name?

The firmware file must be named DLX4_220.BIN.

How long does the firmware update take?

After confirming, wait 5‑10 seconds for the update to complete.